Device and method for encoding and storing digital images and sound signals

FIELD: television.

SUBSTANCE: device converts signals to digital video information. Compression device is made in such a way, that it receives digital video data, coming from source data generator, and compresses digital images. Encoding device receives compressed digital video data coming from compression device and encodes compressed digital video data. Recording device stores encoded compressed digital audio data at data carrier.

EFFECT: higher data transfer speed.

3 cl, 17 dwg

 

The technical field to which the invention relates.

The present invention relates to the field of encoding digital images and audio information. In particular, the present invention relates to a device and method for encoding digital images and sound in digital cinematography. In addition, the invention relates to coding, compression, encryption, storage, unpacking, decoding and managed electronic reproduction of audiovisual programmes with the Central unit through multiple projectors or replay systems.

Description of the prior art

For several decades, the film industry was in a certain dependence on the processes of copying, distribution and films on celluloid film, which are necessary to ensure the delivery of art films in various cinemas, geographically dispersed throughout the country and the world. The ways and means of distribution of the film on the film remained largely unchanged.

The current process of copying and distribution of movies film depicted in figure 1. Copying movies usually start with the original negative of exceptionally high quality. After equipollent the process of creation of the original movie, through cinnamontree panel 52, available in Studio 50, create a master copy of the film. From this master copy of the film through the device 54 copying movies (kondratyevna) form a so-called negative, intended for propagation, which create many copies of the film (known as "positives"). Depending on the desired run length or the number of copies of a film intended for distribution, there may be additional intermediate operation, or at every stage can create multiple copies. The distribution of the positives of the movie on various movie theaters, such as its delivery to the cinema 56, is realized by means of couriers and other physical assets. In the cinema 56 demonstration of the film is carried out by projecting images from the film on the screen surface using the projector 58. Usually in this traditional system create multi-track playback through a system of 51 installation of a phonogram and type it into the film along with images from the film so that the reproduction of this soundtrack could have been accomplished by sound system 57 cinema synchronously in time with the film shown in the cinema through a system chiropracto the A.

Despite what is depicted on Figure 1 the distribution process works quite well, are organically inherent limitations. Due to the use of celluloid as a material for film and constraints bandwidth for media information on the film, there are limitations on the provision of high-quality playback of multi-channel soundtracks. In addition, there are large costs to manufacture a large number of copies of a movie, the cost of which may amount to several hundred dollars for each feature film. There are also costs, complexity and delay associated with the physical delivery of large boxes of films on celluloid film in a large and growing number of cinemas. Moreover, in industries related to the cinemas, there is a growing trend of increasing the number of so-called "multiplex" ("multiplex") cinemas, which in one theater is located or grouped together many auditoria for films. Each hall can be carried out demonstrate some of the movie, while in other auditoriums multiplex system simultaneously perform demonstration for other movies.

Due to the presence of Bo is isogo the number of copies being produced becomes increasingly difficult to prevent illegal copying and stealing footage. Estimated annual loss of revenue for the film industry because of the counterfeiting and theft of billions of dollars. In addition, there is a tendency of deterioration of material quality copy of the film over time, due to the deposition of dust, wear, temperature fluctuations and other known factors. Finally, there are the costs of action for the protection of the environment and other expenses associated with the possible destruction of the material film, which may contain hazardous substances, the disposal of which is regulated by law.

New and emerging technologies allow us to create alternative approaches to solving existing problems in the distribution of movies. For example, are now available means of information transmission via satellites, although currently they are not profitable from a commercial point of view to distributing high-quality audio-visual (AV) (AV) materials. Because the distribution of films is essentially a special type of broadcast to the entire territory of the continent, the distribution method via satellites, with its inherent advantages broadcast on such a large territory, it turns out, ultimately, suitable for distribution of movies. However, DL is the transmission of high-quality AV signal in "real time" required data rate (in bits per second) of the order of 1.5 billion bits per second. In order to provide high speed data transfer even to transfer only one program, required bandwidth, the equivalent bandwidth of a satellite, which is prohibitively expensive. In addition, alternative technologies distribution could not provide the image quality and brightness of the projection, which is obtained when using celluloid film. In competing technologies typically use audio-visual (AV) signals recorded at different magnetic or optical media that display on the screens of monitors, TVs, or by means of projection equipment. Due to the restrictions on the frequency band, these technologies do not provide the quality that matches the quality of the movie.

In addition to providing the ability to send the required information via satellite, it is necessary to display the received information using pre-existing high-quality projection device. In addition, implementation of the satellite transmission system and the reception is an expensive task, and this method is fundamentally different from the currently existing distribution methods and films. It is clear that at the initial stage, the presence of such cor is the R differences may be unacceptable from a commercial point of view.

In addition, advances in digital technology led to the emergence of a revolutionary concept of distribution, in which the storage material film programme carried out electronically in a digital format rather than on optical media in the form of film. The proliferation of digital imaging can be performed on various magnetic media or compact optical disks, or through transmission systems wired, fiber optic, wireless, or satellite communication. There are many formats for storing data in permanent storage devices on the universal digital VCD, DVD-ROM (DVD-ROM)having a memory capacity in the range of from about 4.5 gigabytes (GB) up to about 18 GB. Data storage formats to DVD-ROM, memory exceeds approximately 9 GB, implemented through bilateral disks. Thus, to provide access to information stored on the second side of the DVD-ROM high capacity memory, you must manually turn the wheels.

To save the movie, the duration of which is, on average, two hours, with an average transfer rate of the compressed video data in bits equal to approximately 40 megabits per second to track record images and approximately eight megabits per second - DL the audio and control information, required memory, comprising, on average, about 45 gigabytes (GB). Thus, to ensure sufficient memory capacity in the case of a two-hour movie, you need to use a variety of DVD-ROMs even in the embodiment, by a DVD-ROM high capacity memory.

In addition to playing a regular two-hour movie you must ensure that the information output from the DVD-ROM drive with a speed of approximately 6 megabytes per second or approximately 48 megabits per second. Despite the fact that there are some devices DVD-ROM advertised in the advertisement data rate of 8 megabytes per second, any information about the quality and reliability of such devices are absent. Thus, there is no guarantee that such a DVD-ROM drive can reliably support a data transfer rate of 6 MB per second.

Currently undertaking the development of compression algorithms that reduce requirements for data transfer speed to save high quality images in electronic form. In one of the ways dynamic digital image compression, which can provide a significant degree of data compression while maintaining image quality in the signal, use encoded by discrete casinossegurosenlinea (DCT) (DCT) blocks and sub-blocks of data on the coefficient, with adaptive variable size. This method is called by the method of discrete cosine transform with adaptive variable block size (DCPIB) (ABSDCT). The dimensions of the adaptive modified blocks is chosen in such a way as to use the redundancy that exists in the information contained in the data frame. This method is disclosed in U.S. patent No. 5021891, entitled "Method and system for image compression with adaptive variable block size" ("Adaptive Block Size Image Compression Method And. System"}, the right to which is transferred the patent holder of the present invention and which is incorporated here by reference. Ways DCT is also disclosed in U.S. patent No. 5107345, entitled "Method and system for image compression with adaptive variable block size" ("Adaptive Block Size Image Compression Method And System"), the right to which is transferred the patent holder of the present invention and which is incorporated here by reference. Furthermore, in U.S. patent No. 5452104, entitled "Method and system for image compression with adaptive variable block size" ("Adaptive Block Size Image Compression Method And System"), the right to which is also transferred to the patent holder of the present invention and which is incorporated here by reference, considered the application of the method DCPIB in conjunction with the method of discrete transform using a Quad-tree. ICI is Emax, disclosed in these patents, using intraframe encoding in which the encoding of each frame of a sequence of images carried out regardless of the content of any other frame.

Dissemination of information representing the movies using the digital electronic format actually increases the potential of making a quick, cheap copy without quality loss. However, along with "easy up", which is associated with the presence of digital technology, there are ways of encryption is the encoding of information, which prevents the dissemination of useful information to persons not duly authorized.

The creation of technologies such as the compression method DCPIB, advanced projection equipment and electronic methods of encryption provides the possibility of implementing a system of "digital cinematography". In General terms, the term "digital film" refers to electronic dissemination and demonstration of high-quality films that have been converted into electronic digital form for storage, transmission and display. Through a system of digital cinematography can be overcome many of the limitations existing at the present time about the ECCA distribution of movies. The digital system is not susceptible to deterioration in quality over time, which is observed in the case of celluloid film. In addition, digital system virtually eliminates the possibility of theft and illegal copying of celluloid film, and additionally enables the implementation of data protection in the digital system. However, to date, in industry or in related areas of technology not developed the whole system of digital cinema as a whole.

For this purpose it is necessary to resolve a few remaining issues and challenges. For new systems, digital cinema, it is necessary to create advanced data protection methods that prevent their theft of cinemas. In an attempt to provide greater economic returns create large complexes cinemas with lots of auditoriums, resulting in a more complex schedule of screenings and to the presence of a large number of places where carry out a demonstration of this movie. This may require shipment in cinemas a large number of additional electronic copies for their demonstration, due to the complexity and operational costs when using there is currently methods.

Channels and methods of distribution are still determined above the old way of copying and distributing films on celluloid film. You must create new ways, making use of all the advantages of the proposed technology of digital cinematography, reduce the number of copies, a more rapid release of circulation on the market and updates released products while providing increased flexibility of procedures, scheduling sessions and distribution at acceptable costs. However, some producers, studios and cinema administrators would simultaneously strengthen the centralized control over the reproduction and distribution, as well as have the ability to penetrate new markets. For example, to meet the needs of growing markets for viewers who speak multiple languages or in another language, it is desirable to be able to motion pictures and other audiovisual programs designed to show, were fitted with phonograms, the choice of which can be made from several options, which is more cost-effective way.

You need to concatenate a particular technology with the device and method of encoding, encryption, storage and management of digital images of the phonogram. These tasks are solved by the present invention described below.

The INVENTION

In the present invention, an apparatus and method of encoding and storing signals representing at least video information, media information, and the device includes: a generator source of data designed in such a way that converts the encoded signal into digital image data; a compression device, is designed in such a way that receives digital video data fed from the generator source data, and compresses the digital video data, and the compression device used method of compression by discrete cosine transform with adaptive variable block size; device encryption performed in such a manner that receives the compressed digital the data received from the device, compression, and encryption of the compressed digital video data; and a storage device, is designed in such a manner that receives the encrypted compressed digital video data received from the compression device, and saving the encrypted compressed digital video data on the storage media. The method proposed in the invention is a method of encoding and save the SIG is Alov, representing media information at least video information, and the method comprises the following operations: carry out the conversion of the signals into digital video data; compress digital video data using the method of compression by discrete cosine transform with adaptive variable block size; encrypt the compressed digital video information; and store the encrypted compressed digital video data on the storage media.

Therefore, the apparatus and method provide encoding and encryption of video information and audio information presented, in General, in the form of program data. Compression, encryption, and saving application data in digital form is carried out in the Central unit or in the hub, after which the data is ready to distribute the program to display devices with a large screen that are in one or more auditoriums or theaters. These programs usually contain images from the movie, time synchronized soundtrack and/or other relevant information, for example, tracks with embedded visual information facilitating perception for viewers with visual impairments, subtitles in a foreign language and/or for spectators with disabilities Slu is a, advertisements or track with multimedia timestamp. Program material may have a greater duration (for example, full-length movie), to have a shorter duration (for example, a commercial film or commercial advertising) or to represent a still image (used, for example, for advertising purposes or as ads). For example, soundtracks and advertisements running in the background of the movie, is not necessary to synchronize the audio and other related programs in time with the video or their joint preservation.

In the Central hub perform information processing program for its distribution. To generate the electronic image signals and audio received from the analog or digital input signals may be used by the generator source data located either in the Central hub, or in another place. The generator source data may contain teleconvertor whereby carry out the generation of an electronic image signal, and the reader of the audio signal, by which the generation of the electronic audio signal. Alternatively, an electronic signal can be received neposredno is but from the electronic camera or from another electronic source, for example, from the computer system imaging.

Then the electronic image signals and audio processed through the device compression/encryption. The device compression/encryption again can be either in the Central hub, or in the same location as the generator of the original data, for example a multimedia production Studio. For storing video and audio information on a recording medium can be used a known technology of dynamic compression. Can be used this way of compression, such as the way DCPIB described in U.S. patent No. 5452104, No. 5107345 and No. 5021891. As the recording medium can be used with any electronic storage device of large capacity: magnetic tape, magnetic or optical, for example, compact discs, digital versatile discs (DVD), hard disk drives or storage devices connected to a computer network. Besides, instead, may be transferred to some information systems wired, fiber optic, wireless, or satellite communication. You can compress audio signal via the above methods or by standard compression algorithm of the digital audio signal and its similar in the trojstvo.

The encryption method includes the use of evolving over time of the values of electronic keys and/or sequences of digital control commands which served in the authorized receivers or projectors. In addition, the image signal and/or audio can be added to the digital signature or watermark. Watermark is imperceptible to the ordinary audience, but can be used to determine the source of an unauthorized copy of the program when it is not in real time or frame-by-frame playback. The generation of information about the decoding necessary for decoding video and/or audio information, is carried out in a separate device decryption using special secret keys intended for a specific audience, and proprietary information, which is transmitted to the cinema. Encryption of image signals and audio usually performed separately. By processing parts, representing the image and sound, as individual programs, you can join various audio programs, video programs that is caused by various reasons, such as different languages.

Perform storing the compressed and encrypted signals, n is the carrier of information or provide their transfer from the Central hub. In the variant with signal transmission method modulation/transmission may include adding information for forward error correction and modulation of the data stream for transmission maintenance. The transfer may be performed through the means of wired or wireless communication of any type, for example via the ground cable through optical, satellite or any other means or via the Internet.

The Central hub further comprises a network administrator. The network administrator can contain control processor, capable of managing all operations performed in the encoding device and subsystem cinema, including management functions, save, playback/display, data protection, and centralized control/management and network management. The network administrator can operate through a centralized or distributed fully automatic control, semi-automatic control or by manual intervention.

Saving programs and additional control information, and transmission subsystem cinema carried out under the control of the network administrator. The network also contains monitoring, providing notice is their subsystems cinema about the authenticity of the transferred programs. In addition, provides for a method of control by which control selective preservation of the programme in each of the subsystems of the cinema.

Available in the subsystem cinema storage device receives the carrier (s) information from the hub. The playback module reads information from the media, controls the errors in the stored information, and issues a request to re-transmit any information that contains errors. To issue a request for re-transmission of the control device cinema uses a communication channel from the system of cinema in the Central hub). As a communication channel can be used in a telephone network, a satellite communication channel, the Internet or method of communication of any type.

In the existing subsystem cinema storage device, which is implemented by the control device of cinema, can be provided by the local Central conservation program material. The storage device may contain a media type, for example, digital versatile disks (DVD), a removable hard disk drive or module, which is a group of hard disks (DB) (JBOD). A storage device that can provide acivate simultaneous saving multiple programs. The connection of the storage device can be performed via the local area network (LAN) (LAN) (electronic or optical) so that the reproduction and demonstration of any program can be made at any authorized projector. Moreover, can be carried out simultaneous playback of the same program on two or more projectors. The transfer of the program from the storage device specified in the auditorium (defined auditoriums) is performed via a local area network (LAN), which can be used in a local network with a different architecture. In this paper involve the use of drugs with the architecture with the presence of a Central network switch, which is consistent with the purposes of this description. However, for this subsystem can be used, and the local network with other architecture.

As soon as the ordering of the material by the playback module, the decoding device performs decompression and decoding or diskriminirovaniya program material. Decompression algorithms and decryption depend on those methods, compression, and encryption, which were used in the Central hub. A visual display of the decompressed/decoded information for the implementation of the presentations via projector in the auditorium, and the sound signal is realized by means of electronic audio subsystem.

The control device cinema usually maintains extensive operations management demonstration movie, including the preservation of the adopted programs, unpacking and decoding of signals representing the program, and displaying program material. The control device cinema can also control time period and/or the allowed number of sessions during which allowed the demonstration of each program. In an alternative embodiment, the management tool process the movie demonstration can be made locally and should be in the projector, the remote control device or be under the management of the Central hub or other Central device. In addition, the control device cinema can be designed in such a way to concatenate operations demonstration movie with other operations performed in the cinema, such as discounts, ticket sales, advertising, hiring staff, managing the environment, lighting, operation of sound systems, etc. in addition, each subsystem cinema can contain all the e many modules auditoria, which share a common function preservation and management to provide flexibility and cost-effectiveness in films.

The use of digital encryption provides built-in data protection tools. To perform the transfer with the presence of end-to-end data encryption using cryptographic methods. That is, the encrypted video and/or audio information is carried out in the generator source data, and its transcript is produced in the subsystem cinema during playback. In addition to electronic measures to protect the data can be used and physical protection measures, providing additional protection program material.

Physical security measures may be of particular importance for the protection of the decompressed/decoded signals from the "intercept" before their demonstration on the screen through the projector subsystem cinema. In one embodiment, the implementation of the tool perform the function of decoding/decompression placed in a safe Autonomous body that is physically attached to the projector or built inside the projector so that, in the General case, it cannot be removed without authorized access, and which physically prevents sensing of decoded signals. In addition,unauthorized entry into the protected space or into the body initiates the process of removing or erasing information on the encryption key, or removal, or modify any digital data available at the point of data submission for their projection on the screen, which prevents the copy.

Thus, the proposed device and method of compression, encrypt and store digital video and audio information, and control functions, providing control and management of such a device.

BRIEF DESCRIPTION of DRAWINGS

Distinctive features, objectives and advantages of the present invention will become more apparent from the following detailed description when viewed in conjunction with the drawings, in which similar numbers of positions in different drawings are denoted by, respectively, the same nodes, and in which:

figure 1 shows the block diagram of the traditional system of distribution of movies;

figure 2 shows enlarged block diagram of a variant of implementation of the digital cinema of the present invention;

figure 3 shows the block diagram of the generator of the original data from the film strip;

figure 4 shows the block diagram of the device of the compression/encryption;

figure 5 shows a block diagram of a network administrator;

figure 6 depicts a block diagram showing the internal network hub and means reserving a Central hub;

on Figa - File shows the block diagram of the storage device;and

on Fig depicts a block diagram of a storage device using a variety of serial devices playback from discs and playback device;

figure 9 depicts a block diagram of a storage device using multiple devices in parallel playback from discs and playback device;

figure 10 depicts a block diagram of a memory device using a tape drive and playback device;

figure 11 depicts a block diagram of a subsystem of cinema, in which the storage device using a removable hard disk drives;

on Fig depicts a block diagram of the control device of cinema;

on Fig depicts a block diagram of a subsystem of cinema, in which the storage device using the module DB (hard disk drives).

DETAILED DESCRIPTION of PREFERRED embodiments of the INVENTION

The present invention includes the apparatus and method, sometimes referred to here as "digital film", by which the generation, compression, encryption, and preservation of audiovisual programs, such as movies, electronic systems theatres, cinemas, complexes, cinemas and/or demonstration systems.

Pic is b digital cinematography contains innovations, related to the compression of images and sound, projection techniques, methodology, encryption and many other areas. Digital cinematography is intended to replace the current way of physical delivery of the films on celluloid film in every place, in which their reproduction or display, for example, in cinemas or in remote auditoriums. Digital film eliminates the need to copy films on celluloid film and creates the potential for receiving audio/visual programs of exceptionally high quality, and provides inherent data protection tools. May be transferred to programs in cinemas and their preservation through storage devices, for example, by means of removable hard disk drives (SNGD) (RHD) or digital versatile disks (UCD) (DVD), for further demonstration.

In the following description for clarity, as an example, use a cinema hall or a cinema complex, but the invention is equally applicable to the demonstration of video information and audio information in many places, where they perform the demonstration, for example in open-air cinemas, in the open-air cinemas for motorists, the public is auditoriums, in schools, specialty restaurants, and other Professionals in the art will understand how the present invention can be used for demonstration sites of other types.

Figure 2 shows the system 100 digital cinematography according to the invention. System 100 digital cinematography contains two main systems: at least one Central device or hub 102 and at least one demonstration subsystem or subsystem 104 cinema. The hub 102 and subsystem 104 cinema have a construction similar to that described in finding pending application for U.S. patent No. 09/075,152 may 8, 1998, the rights to which transferred the patent holder of the present invention and which is incorporated here by reference.

In one of the embodiments of the invention provide compression and preservation of video information and audio information on the media and its transmission from the hub 102 to the subsystem 104 cinema. Usually for each theater or for each demonstration area network demonstration sites use the same subsystem 104 cinema, by which reception of video information or audio information, and which contains a centralized equipment, and certainly the equipment, which is used to implement the demonstration in each auditorium.

In the Central hub 102 material film on the film served in the generator 108 original data, which provides the generation of a digital version of the movie. Through the device 112 compression/encryption (WSS) (CE) perform compression and encryption of digital information, and through the storage device 116 of the hub is carried out by memorizing the storage medium. The administrator 120 network monitors and transmits the control information generator 108 source data, OSS 112 and storage device 116 of the hub. The tool 124 control conditional access creates special information about electronic keys so that the right show the specific programs provided only to certain cinemas.

The device 128 management cinema, part of the subsystem 104 cinema that manages the device 132 management cinema. On the basis of control information received from the device 132 management cinema, the storage device 136 cinema transmits the compressed information stored on the information carrier, the module 140 playback. The module 140 playback receives compressed data from the storage device 136 Kinoteatr is and prepares concise information in a predetermined sequence, marshalling its size and data rate. From the output module 140 playback compressed information fed into the device 144 decoding. The unit 144 performs decoding input compressed data received from the module 140 playback, and performs the decryption, decompression and formatting, and obtained at its output the information fed into the projector 148 and sound module 152. The projector 148 performs reproduction of information by means of the projector, and sound module 152 performs the reproduction of the audio information through the sound system, and the management both of them performed by the device 132 management cinema.

During its work, the generator 108 source data takes the digital image and/or program in the system. To the input of the generator 108 source data usually arrives the film material in the form of film, and it carries out the generation of digital information or data on the magnetic tape. To create a digital version of the movie or other program carry digital scanning film with very high resolution. Generating video information, as a rule, carried out through a process of "telekineticly, and generating the audio portion of the program shall be implemented by the known method clicks the processing by converting the audio signal into a digital form. The source of the processed images is not necessarily the movie, as they can be used such images as still frames, or a single image or a sequence of frames or images, including those that show as films with different duration. For the creation of what is called the video, these images can be represented as a sequence or set. In addition, can be created and another material, such as tracks with embedded visual information facilitating perception for viewers with visual impairments, subtitles in a foreign language and/or for viewers with hearing impairments, advertisements or track with inserted media information about the current time. Similarly, to create the required audio programs use a single sound or recording, or sets.

In an alternative embodiment, digital video data can be created by a digital camera high definition, or by other known device or method for creating digital images. Using a digital camera, which directly creates digital video information, is especially suitable for live broadcasts from the event that provides the opportunity for the usesto, immediate or concurrent with progress of the event distribution. Can also be used in a computer work station or similar equipment by means of which provide direct generation of graphic images intended for distribution.

Digital video information or the program serves in the device 112 compression/encryption, which compresses the digital signal using a pre-selected known format or process, resulting in reduce the amount of digital information needed to reproduce the original image with very high quality. In a preferred embodiment, compression of the original image using the method DCPIB. The compression method DCPIB disclosed in the aforementioned U.S. patent No. 5021891, No. 5107345 and No. 5452104. Can also be made digital compression of audio information using standard methods and can be synchronized in time to the compressed video information. Then perform encryption and/or scrambling of the compressed video information and compressed audio information using one or more electronic methods of data protection.

Administrator network 120 monitors the status of the device 112 compression/encryption and sends the compressed inform the operation of the device 112 compression/encryption in the storage device 116 of the hub. Storage device 116 of the hub contains one or more media (shown in Fig). The carrier (s) of information may be any data storage device of large capacity, such as digital versatile disk (WCD) (DVD) or a removable hard drive (SNGD) (RHD), and its description below. After saving the compressed data on the storage media provide physical transport of storage media subsystem 104 cinema and, in particular, in the storage device 136 to the cinema.

In alternative embodiments, the implementation of the preservation of each type of compressed information, video information and audio information, do not at the same time or separately and independently from each other. That is, there is a compression tool and save audio programs associated with the video data, or programs, but existing separately in time. In the present invention, there are no requirements, causing the need for simultaneous processing of sound and image. Depending on the situation, to communicate relevant audio and video between a use predefined identifier or the means or the identification scheme. This allows to provide the required nexus one or more is Aranea selected audio programs, at least one pre-selected video is played immediately before the performance or during the session. That is, despite the fact that the compressed audio information initially not synchronized in time to the compressed video information, communication and synchronization provide demonstration program.

In addition, storage of the audio program separately from the video program allows you to synchronize video with audio programs in multiple languages without requiring re-create videos for each language. In addition, separate storage of the audio program enables you to support configurations with multiple speakers without the need for interleaving multiple tracks of audio with the video.

In addition to video and audio programs to the system can be added to a separate program, promoting the product to the market, or promotional program. Typically, promotional materials change more frequently than the program, which contains an art film. The use of a separate advertising program allows you to update promotional materials without the need to create new video, which contains an art film. Advertising content is it this kind of information, as advertisements (transparencies, audio announcements, moving images and the like) and promotional videos to be shown in the cinema. You may be saving thousands of transparencies or fragments of advertisements, due to the high memory capacity of such media, as UCD (DVD) or SNWD (RHD). The large memory capacity allows you to modify programs to meet the interests of consumers, as in specific theaters, you can carry out targeted demonstration of specific slides, advertisements or promotional videos for certain groups of consumers.

Although figure 2 shows that the compressed information is in storage device 116, and transportation of the holder (s) of the information subsystem 104 cinema, exercise physical way, it should be understood that the transfer of compressed data in the storage device 136 for cinema can be carried out using any of the many ways wireless transmission or transmission by wire. Transmission methods include the method of transmission over the satellite, known methods for multi-drop transmission line through the nodes access the Internet, via a dedicated telephone lines or via a fibre-optic network direct connection

Figure 2 - Figure 9 depicts embodiments of processing units, located in the Central hub 102 as described below. Figure 3 shows the generator 108 of the source data. The generator 108 original data of Figure 3 performs conversion source 156 images on the film, for example, the movie on 35mm film stock to digital form and storing a digital version of the tape. The generator 108 of the source data contains a process 164 or device that represents teleconvertor" high definition (HF) (HD), through which obtaining data from a data source 156, which is a film, and generation of digital images from source 156, which is a film. The process through teleconvertor is known in the film industry, and this process can be used with any of several commercially available devices or any of the existing organizations that provide these services on a commercial basis. However, in the preferred embodiment, using the processing by teleconvertor with high resolution, which now can be carried out using equipment developed by the company "SINTEL" (CINTEL) or company Philips BTS" [Philips BTS}that one is known by the prior art. The resolution and the choice of a particular type of equipment used due to cost and other known factors when planning this type of service. Can be also alternatives to using a different resolution, due to the potential audience available projection equipment and the location of the cinema, including the desire to reduce the data rate for transmission, carried out with some companions.

In that case, if the original film 156 is a source on a standard film format 35 mm, the process of image processing is performed with the use of the process of telekineticly with 24 frames per second. The preservation of the digital signal obtained at the output of the process telekineticly may be implemented using devices high-speed data recording on magnetic tape or via direct compression and/or encryption and storing this signal using a recording device on a magnetic tape having a lower writing speeds, or by other known systems store images and media.

Because teleconvertor performs only processing images, the processing of the audio portion of information is, input source, perform regardless images. In that case, if the source is an analog format, it is usually performed in the form of a magnetic tape 168, which serves in the device 172 reading sound for conversion to digital form. In one embodiment, the implementation of digital image combining up to twelve digital audio channels that perform through multiplexer 176. The multiplexed signal is stored together with the video on the media, for example, through a digital video recorder with 180 high-density recording or similar digital storage devices with large memory capacity. In the above alternative embodiment, the storage and processing of phonograms can be performed separately from the video, but it should contain information about synchronization in time to ensure proper alignment of its time with the video, when combined in the projection system play movies for the audience. Store information about time synchronization can be performed in the video program, audio program or in a separate control program.

Despite the fact that the generator 108, the source data is depicted as part of the Central hub 102, ledue is to understand that it can be located in a different place than the Central hub 102. Expedient may be also possible means of generating a digital signal obtained from the magnetic or optical source, in other places. In an alternative embodiment, the generator 108, the source data may contain the digital camera with a built-in magnetic or optical storage device, or other means of generating digital images (for example, computer graphics or special effects), which creates a source material directly in digital form. The generator 108, the source data may also contain a system of digitized still images, such as optical scanning device or the device convert images used for photographic transparencies on a 35mm film or prints. Therefore, the required digital material can be created in the usual or in specialized studios, for example, designed to create special effects, or in other places where carry out the preparation and production of the video, which is then forwarded to the hub 102 for further processing or transmission.

Figure 4 shows the block diagram of the device 112 compression/encryption. Like the generator 108 source data ustroystvo compression/encryption can be part of the Central hub 102, or may be in a different place. The device 112 compression/encryption may be, for example, together with the generator 108 of the source data in the Studio or in the Studio production of television programs. In addition, the compression process as video or data, and audio information or data may be implemented as a process with variable speed.

The digital data generated by the generator 108 source data are received by the device 112 compression/encryption. Before further processing can be carried out preserving the digital video information and digital audio information in a frame buffer (not shown).

The digital image signal fed into the device 184 image compression. In a preferred embodiment, the device 184 image compression performs digital signal processing of the image using a method DCPIB described in the above U.S. patents No. 5021891, 5107345 and 5452104.

In the way DCPIB input color signal typically has a YIQ format, where Y component represents the luminance or brightness, and the components I and Q represent the chroma signal or color. Can also be used and other formats, for example, YUV or RGB. Due to the low spatial sensitivity of the eye to color, in the way DCPIB carry out subdisk is izatio component chrominance (I and Q) by a factor of two in each direction: horizontally and vertically. Thus, to display each spatial area of the input image using the four components of the luminance and two chrominance components.

Each component of the luminance and chrominance served in the device block interleave. In the device block interleave is usually served with a block of 16×16 items, which organizes a sample of images inside blocks of 16×16 items, and creates blocks and composite sub-blocks of data for analysis by discrete cosine transform (DCT). The DCT operation is a one way conversion signal with a time discretization, by means of which shall display the same signal in the frequency domain. Previously it was demonstrated that by converting the display into the frequency domain methods DCT can achieve ultra-high compression ratios, as may be generated by the sampling device, effectively using the characteristics of the frequency distribution in the image. In a preferred embodiment, the first regulation implementing for a single block of 16×16 items for which DCT performed, the second ordering is carried out for four blocks of 8×8 elements that are DCT, the third arrangement is carried out for 16 of the components is from 4× 4 elements that are DCT, and the fourth arrangement is carried out for 64 units of 2×2 elements that are evaluated.

The DCT operation reduces spatial redundancy inherent in the source image. After performing DCT most of the energy of the image signal tends to concentrate in a few DCT coefficients.

Perform an analysis of the coefficients obtained by transforming a block of 16x16 elements and each subunit, whereby to determine the number of bits required to encode a block or subblock. Then make the choice of block or set of subunits, for encoding which requires the smallest number of bits by which the display area of the image. For example, to display the image area can be selected two subunits of 8×8 elements, six sub-blocks of 4×4 elements and the eight subunits of the 2×2 items.

Then carry out a proper ordering of the selected block or set of subunits. After this can be performed additional processing of the values of the DCT coefficients to prepare for the transfer, such as multiplying by a weighting coefficient depending on the frequency, quantization and encoding (for example, coding by variable length code) using known what different ways but these examples are not restrictive. The compressed image signal is then applied, at least one device 188 image encryption.

The digital audio signal is usually served in the device 192 compression of the audio signal. In a preferred embodiment, the device 192 audio compression performs signal processing multi-channel audio information using a standard compression algorithm of the digital audio signal. Compressed audio signal serves, at least in one device 196 encryption of the audio signal. In an alternative embodiment, may be implemented to transfer audio information and using it without compression, but, nevertheless, in digital format.

Through the device 188 image encryption and device 196 encryption of the audio signal to carry out the encryption of the compressed signals, respectively, images, and sound using any of the many known methods of encryption. Encryption of image signals and sound can be performed using the same or different ways. In a preferred embodiment, use the encryption method, which contains the operation of the scrambled digital sequences that are performed in real time as for the image, and tags.

In device is Istvan 188 and 196 encryption of image and sound signal process program material through a scheme of scrambling/encryption in which use changing over time information about the electronic keys (which is usually performed several times per second). Can then be implemented conservation scrambled information representing a program, or transfer, for example, on the radio in the wireless channel, and it cannot be decrypted by anyone who does not have relevant information about the electronic key used for scrambling program material or digital data.

The encryption operation in the General case contains the operation of the scrambled digital sequences or direct encryption of the compressed signal. Used here the word "encryption" and "scrambling" are used interchangeably and it is clear that they mean any means of processing streams of digital data from various sources using any of a variety of cryptographic methods scrambling, hide, or direct coding of these digital streams using sequences created through a secret numeric values ("keys") in such a way that the restoration of the original sequence data without knowledge of secret key values is a very difficult task.

In each video the sound or the program can be used special information about electronic keys, provided in encrypted form, the encryption is carried out through information on the electronic keys specific to a particular venue for entertainment events or theatre, to the cinema or venue of entertainment events, which granted the right show a specific program. This feature provides a means 124 control conditional access or SUUD (HIMSELF). The encrypted software key required to decrypt the stored information in the auditorium, convey, or otherwise transfer to authorized cinemas before playing program. It should be noted that the stored information representing the program may be transferred for a few days or weeks before the authorized period of display, and that the transfer or delivery of encrypted key video or audio programs can be carried out immediately before the commencement of the period during which reproduction permitted. Transferring the encrypted program key can also be carried out through a communication channel low speed data transmission or via a portable storage device, for example, the media information on a magnetic or optical disk, smart card, or through other the devices, contains memory device with erase. Providing the encrypted program key can also be designed in such a way as to ensure control over the period of time during which a specific complex of cinemas or the audience is given the right to make the demonstration program.

Each subsystem 104 cinema, receiving the encrypted program key, decrypts its value using a key that is intended for a specific audience, and the preservation of this decrypted program key in the memory device or in another secure storage device.

To perform the operation of diskriminirovaniya/decrypt information representing a program in real time at the moment when you want to replay the program using the key information intended for a specific theater or venue of the show, and the key intended for this specific program, in the preferred embodiment, together with a symmetric algorithm, which was used in the device 112 encryption in the preparation of the encrypted signal.

With reference again to Figure 4, the device 188 image encryption in addition to scrambling can add to the video "water testing is a", which usually is inherently digital. This procedure contains the insert operation in the sequence program data visual identifier specific to revenge of the demonstration and/or a specific point in time. That is, watermark creating, so it meant a place and time sanctioned demonstrations to ensure effective tracking of the source of an illegal copy if necessary. Watermark can be programmed so that during playback, he appeared frequently, but at random points in time and would be invisible to the audience. Watermark is invisible to the perception by demonstrating the decompressed video information or audio information when playing with a predetermined normal speed transmission. However, the watermark can be detected in the demonstration video information or audio information at a speed substantially different from that of the normal speed, for example, when playing "in real time" with a slower speed or frame-by-frame playback. In case of detection of illegal copies of the program, authorized persons can read information about digital "in danom sign" and can be installed cinema, which source made up. A similar method using a watermark can also be applied or used to identify audio programs.

Compressed and encrypted signals as images and sound, served in the multiplexer 200. The multiplexer 200 video information and audio information to condense and combine together with synchronization information over time, which allows streaming of video information and audio information in a consistent manner across time subsystem 104 cinema. Then carry out the processing of the multiplexed signal through the device 204 batching, which forms from the program data packets to convert the program into the data flow. Due to the formation of data packets or blocks of data can be carried out verification of the data stream representing a program, during the decompression subsystem 104 cinema (2) for errors when receiving units during decompression. The device 128 management cinema, part of the subsystem 104 cinema, may issue requests for data blocks containing errors. Therefore, if there are errors, you need to replace only small parts of the program, not the whole program. Transfer request for transferring small blocks of the data can be performed on the channel wired or wireless connection. This provides higher reliability and efficiency.

In an alternative embodiment of the present invention the processing of visual and audio parts of the program carried out as separate and distinct programs. Thus, instead of using a multiplexer 200, used for multiplexing image signals and sound, batch processing of image signals can be carried out separately. In this embodiment, the transport of video programs can be carried out without a sound program and Vice versa. Thus, the connection of video and audio programs in a joint programme carried out only at the time of playback. This allows you to combine various video, sound, due to various reasons, such as different languages, creating the updated versions of the software after it is released, or changes in the program that ensure compliance with generally accepted standards for the local population, and so on. This flexible assignment to various video multitrack audio software is very useful to reduce the cost of change is already common programs and to meet the needs of expanding markets related to the various cultures that now DOS is available for the film industry.

Device 184 and 192 compression device 188 and 196 encryption, the multiplexer 200 and the device 204 forming packets of program data can be implemented by the controller module 208 of the compression/encryption (MSS) (FAM), which is a processor with software control, programmed to perform the functions described here. That is, these devices can be arranged in the form of hardware that performs a common function, which contains many programmable electronic devices or computers running under the control of the programs that are implemented by software or hardware. Alternatively, they may be implemented using other technologies, for example through specific integrated circuits (ASIC), or through one or more sets of electronic circuit boards. That is created as a specialized hardware.

The video and audio program in the form of a stream passed into the storage device 116 of the hub. The controller 208 MSS is responsible, mainly, for the control and management device 112 compression/encryption. The controller 208 MSS can be implemented by programming a universal hardware device is whether your computer so that it performed the required functions, or by using specialized hardware. As indicated in this description, the network management controller 208 MS make available through the administrator 120 network (Figure 2) through the hub internal network. The controller 208 MSS supports communication with devices 184 and 192 compression devices 188 and 196 encryption, multiplexer 200 and the device 204 batching by known digital interface and manages the functioning of these devices. The controller 208 MSS can also monitor and control module 116 save and transfer data between these devices.

In a preferred embodiment, the storage device 116 are in the form of one or more SNID, drives UCD (DVD) or other media with high capacity, and it in General has a design similar to the design of the storage device 136 for cinema of the subsystem 104 cinema (Figure 2). However, specialists in the art it is clear that for some applications can be used with other carriers. At the stage of compression in the storage device 116 receives the compressed and encrypted data about the image, audio, and control data received from the device 204 batching the C program data. Managing the operation of the storage device 116 is implemented by controller 208 MSS.

Now will be described administrator network 120 with reference to Figure 5. Administrator network 120 provides control and management of the hub 102, and possibly the entire system 100 digital cinematography, including the control and management of components of one or more systems 104 cinema, but it is not mandatory. Management can be centralized, the administrator 120 network controls all operations of the system, including controlling the transmission, playback/display on the screen, measures, data protection and all functions of network management. In an alternative embodiment, can be implemented in a system with distributed control, in which control some of the functions of cinema is implemented by the processors that are in the demo systems or in systems of the cinema.

The administrator 120 network contains at least one processor 212 network management, which is a Central controller or "brain" of the system 100 digital cinematography. The administrator 120 network is usually created on the basis of the standard complex workstation or similar programmable hardware of the data processing. The processor 212 network management manages control functions and protection of the hub 102. Under the control of the administrator 120 network transmission of control information or updates for software from the hub 102 to the subsystem 104 cinema can be performed in advance before the show. The processor 212 network management also manages the transfer of or the transmission speed of the programs in the subsystem 104 cinema. The baud rate can be constant or variable, depending on program type and structure of channel or transmission path. For example, it may depend on the transmission speed on a particular communication channel. In addition, the data transfer rate by encoding the program material with compression can be different for different programs, resulting in a gain varying levels of quality during compression.

Pair processor 212 network management with other components of the hub is implemented by the internal network hub, which is usually carried out through a network with a standard multi-drop configuration. However, there may be used and other types of networks with known structure, including optical communication channels. In a preferred embodiment, the internal network concentrate the RA is realized by means of hub 216 Ethernet, part of a system 120 for the network administrator, the description of which is given here with reference to Fig.6.

Administrator network 120 may also include a modem 220, which enables communication with a network of cinemas via the Internet or the public switched telephone network (PSTN), and usually contains sets of modems for communication over switched telephone lines, modems, cable or satellite communication, controllers, digital network integrated services (CSCW) (ISDN) or mobile channels, or other known means. The modem 220 is associated with the processor 212 controls the network through dial-up server. The modem 220 serves as a receiver of the reverse communication channel from cinemas in the Central hub 102. For example, the device 128 management cinema depicted in Fig.7, controls the quality of the extraction process in the subsystem 104 cinema and sends the report as the system 120 of the network administrator. Cinemas can use reverse communication channel to request retransmission of data blocks programs that have errors from the Central hub 102. In addition, through this communication link may be transferred requests for additional sessions show programs, or to make changes or updates to the mother of the La programs. In alternative embodiments, the implementation of the reverse communication channel may be established via a satellite link, or other communication method with a low data rate, or through communication via the Internet. In this case, instead of the modem 220 for communication it is advisable to use other known means or device.

The interface 224 user allows the user direct control of the administrator 120 network and, consequently, all the hub 102 and/or subsystem 104 cinema. The user can monitor the status of the hub 102 and to control the timing of the various modules of the hub 102 on time. In addition, the interface 224 allows the user to take into account the configuration of the various embodiments of the storage device 116, including the type subject to the use of media, and how and where to save the programs on the media. The interface 224 user is usually a personal computer with monitor and keyboard interface.

Now will be described drawing 6, which depicts a block diagram of the internal network 228 of the hub. Internal network 228 of the hub is the main line of communication for the Central hub 102. Internal network 228 the end of the protection can be internally expanded in the form of a local area network (LAN) Ethernet, functioning in accordance with a set of protocols for internetworking (IP). Thus, the internal network 228 hub physically connects the device 112 compression/encryption, storage device 116, a network administrator 120, the tool 124 control conditional access, and possibly, but not necessarily, the device 128 management cinema, part of the subsystem 104 cinema, both among themselves and with the hub 232 Ethernet network. Internal network 228 of the hub may also contain a backup or redundant components to ensure functionality in the event of failure of the primary components. For appropriate functional separation of specific local and remote functions in its composition also may include an external interface, providing, if necessary, the connection of the Central hub 102 with an external computer network or communication system.

As shown in figure 2, the subsystem 104 cinema made in such a way that it contains at least one, and usually multiple devices 132 management cinema, which is implemented by device 128 management cinema. For example, in some profitable areas of the market cinemas create in the form of complexes of cinemas with a lot of auditoriums located in one place, motoryacht called complexes (cineplex) or multiplex (multiplex) cinemas. Transferring the stored compressed data can be carried out in one or in multiple modules 132 auditoria, inside one of the cinema complex.

Module 132 of the auditorium contains a storage device 136 for cinema, the module 140 playback device 144 decoding, as well as the projector 148 and sound module 152. During operation of the storage device 136 for cinema contains concise information on the storage media. 7 shows various embodiments of a storage device 136. Transport media from the hub 102 to the subsystem 104 cinema usually perform a physical way, although it is assumed that can be performed in the transfer of information from the hub 102 to the subsystem 104 cinema. The media may represent one or more disks 236 USD (DVD) (Figa and Figv), one or more removable drives 240 hard drives (Figb), internal storage 244 on the hard drives (WNWD) (() (Figg)in playback module, module DB 248 (a group of hard disks (JBOD) (Fig), which contains the set of storage devices, or any combination.

In the embodiment, using UCD (DVD) as a recording medium can be COI is used many disks 236 USD. This alternative implementation is shown in Fig 7A. To save the movie, the duration of which is, on average, two hours, when the transmission rate of the compressed video data in bits equal to approximately 40 megabits per second to track record images and approximately eight megabits per second for audio and control information, required memory, comprising, on average, about 45 gigabytes (GB). Current data storage formats to DVD-ROM provide the amount of memory in the range from about 4.5 gigabytes to about 18 gigabytes. Memory over approximately 9 GB get through bilateral disks that you want to turn to read a second side of the drive. Thus, to ensure sufficient memory capacity in the case of a two-hour movie, you need to use a variety of DVD-ROMs even in the embodiment, by a DVD-ROM high capacity memory.

As described above, the preferred option is the separate use of video information and audio information. This alternative implementation is shown in Figv. A video 252 remember on any other media than the audio program 256. As the media can serve the disks USD (DVD) or device SNID. No who have any requirements, determining the need for the use of the present invention for processing audio programs at the same time. Separate storage of the audio program video program allows you to synchronize video with audio programs in multiple languages without requiring re-create videos for each language. In addition, separate storage of the audio program enables you to support configurations with multiple speakers without the need for interleaving multiple tracks of audio with the video.

In addition to video 252 and sound program 256 to the system can be added to a separate advertising program 260 or program promoting the product on the market. The use of a separate adware 260 allows the updating of advertising materials without the need to create new programs 252. Advertising program 260 may contain advertisements, promotional trailers, control information and/or information about the key subsystem 104 cinema.

Use a removable hard drive as storage media provides some advantages, such as ease of copying and the likelihood of having lower chastityplay errors. This alternative implementation is shown in Figb. Information stored on the hard disk 240, easy to replicate by writing data to a disk in the device is a standard personal computer (PC). In addition, fewer removable hard disk drives due to high memory capacity removable hard disk drives. The use of hard disk drives reduces the probability of errors during processing compared with other media. Moreover, the probability of preserving the integrity of the data in the removable hard drive is higher in the presence of harsh environments, for example, by rough handling during transportation or when exposed to dust, dirt, noise or other unwanted substances.

In another embodiment, shown in Figg, among other media use the internal drive 244 on the hard drives (WNGD) and modem 264. Saving information on WNED 244 via modem 264 allows the transmission of information directly to the cinema through the existing communication system, for example, via telephone lines, through the communication channels digital network integrated services (CSCW) (ISDN), cable modem, or via digital communication channels ABO the Agency lines (DSL) (DSL). For example, can be transferred updates for advertising information and advertising movie on phone lines and save them on WNED 244. Demonstration of the updated slides in cinema can be carried out directly with VNGD 244, and not from a disk that contains an advertising program, but this is not required. Transfer updates for advertising information and advertising videos through connection via modem 264 leads to a significant reduction of costs because fixed costs of printing and distributing additional drives with the advertising program.

Another function VNGD 244 is a function of system data integrity. Before sending the information to the playback module VNGD 244 checks the integrity of data stored on the storage media.

System data integrity verifies an electronic signature for each data block. If during the verification process through a cyclic redundancy code (CEC) fails in any unit, or if the data block is absent, the playback module uses a modem connection request on the implementation of the re-transmission of data blocks containing errors. After the query is executed perform the memorization of the requested data blocks in NZD 244. When the program is played by the playback module, the playback module accesses WNWD 244 that provides playback of the requested block (blocks) of data at the appropriate time. Taking into account the performance and speed of data transmission, it is most expedient to access only a relatively small number of data blocks. In that case, if the system error checking detects the presence of a large number of bad blocks of data, the tool will display error messages allows the user to determine is whether this amount of data the basis for the physical distribution of data discs.

Use VNGD 244 and modem 264 is also suitable for propagation material of cryptographic keys. Forwarding material of cryptographic keys and other control information from 124 control conditional access VNGD 244 are carried out either through the physical transmission of data on separate media, or via modem 264.

In turn, the tool 124 control conditional access can be transferred to the data on work status, history and other information. Despite the fact that transmission of control information carried out from the Central hub 102 and despite t is, that subsystem 104 cinema can receive all transmitted information subsystem 104 cinema perform selective demodulation and keep only those adopted programs, which are designed for specific module 104 of the cinema.

Download video programs, audio programs and/or advertising programs from storage media in VNGD can be performed with sufficient capacity VNGD 244 or by using the module 348 DB. Use VNGD 244 allows the playback module to provide sessions with the program of two feature films and sessions with many other programs. In addition, the demonstration of a certain feature film can be performed on multiple screens by downloading the program (s) in multiple modules playback so that the playback feature film performed by WNED 244 each module playback.

In an alternative embodiment, depicted in Figd, instead of the modem interface 264, shown in Figg, can be used LAN 268 (PA). In addition to performing the functions described above modem interface 264, interface 268 HP may provide connectivity to one or more modules playback and/or device 128 control film is the industry. Provide a communication interface user interface 268 local area network (LAN) and/or device 128 management of cinema that allows the user to perform remote control and management functions such as scheduling sessions, control and fault monitoring for each playback module, module, device, decoding or modules image and sound modules. In addition, it is assumed that the administrator of the network 120 may be included in interface 268 PP. The presence of interface 268 HP also allows you to transfer programs between modules playback.

On Fig shows a variant implementation using multiple disks USD (DVD) a, 272b...272n as a carrier of information and aggregate devices a, 276b...276n disc UCD (DVD) recording on one side. Playing through a set of devices a, 276b...276n disc UCD (DVD) write on one side is carried out in a sequential mode with a predetermined sequence by playback of stored information in the appropriate drive. The stored information is fed through the switch 280 in the buffer 284, for example, in the buffer 284 with random access memory device FIFO type (FIFO-RAM), which is depicted in Fig 8. Buffer 284 operativni storage device FIFO type (FIFO-RAM) has a capacity of, sufficient to ensure no overload or underload device 144 decoding and, accordingly, the projector 148 blocks of information. In a preferred embodiment, the buffer 284 with random access memory device FIFO type (FIFO-RAM) has a capacity of approximately 100 to 200 megabytes. The use of buffer 284 with random access memory device FIFO type (FIFO-RAM) is particularly important in the case when reading disks USD (DVD) 272a, 272b...272n execute in serial mode. When reading disks USD (DVD) in sequential mode may experience a delay of several seconds when switching from one ROM to another.

Then the stored data is served in the device 144 decoding interface 288 fiber-optic line. Control of the switch 280, the buffer 284 and interface fiber-optic communication lines shall be implemented by the Central processor 292 playback module.

Playing through a set of devices a, 276b...276n disc UCD (DVD) write on one side can also be done in parallel, as shown in Fig.9. In parallel mode the device a, 276b...276n disc UCD (DVD) write on one side of the exercise of rehabilitation is the introduction of various pieces of compressed data, and then these parts are combined into a single module 140 playback. Read through devices a, 276b...276n disc UCD (DVD) part of compressed data fed into the tool 296 parallel read/consolidate disparate data in the form of strips (destriping), which properly regulates part of the compressed data. In a preferred embodiment, the tool 296 integration of disparate data in stripes is a software module, which can be implemented by module 140 playback. As shown in Fig.9, the tool 296 integration of disparate data in stripes is a software module, which is implemented by the CPU 292 module 140 playback. The tool 296 integration of disparate data in the form of strips can be a resident and be at the Central processor 292. The tool 296 integration of disparate data in the form of strips also performs error checking to ensure error-free playback. Part of the compressed information may contain redundant information for those cases when it cannot be done the reading part of the disk or destroyed any part of the compressed data. In these cases, the tool 296 integration of disparate data in the form of plasmajet to be used redundant information to recover some of the destroyed information. Maintaining redundant information and information about the order can be executed on a separate disk UCD (DVD), read which operate in parallel with other drives a, 272b...272n, which contains compressed information.

In the embodiment that is an alternative to any of the embodiments depicted in Fig and 9, instead of the aggregate disk ATC (DVD) write on one side can be used with tape drives UCD (DVD). The operation of the cassette 300 drives UCD (DVD), which is depicted in Figure 10, is similar to the operation of the known cassettes compact discs (CD). In the cartridge 300 drives UCD (DVD) insert a bunch of discs. Tool management software that resides in a storage device 136, the module 140 playback or in the Central processor 292, ensures proper installation disks and the proper sequence of access. Many disks are served in one playback device ATC (DVD). The means of the switch 304, similar to that depicted in Fig, manages the insertion process in the playback device ATC (DVD) proper disk ATC (DVD). In the embodiment, since the tape drives ATC (DVD) also can be implemented either serial or parallel mode.

Figure 11 shows functioning is the module 132 of the auditorium, in which use one or more removable drives 308 on the hard drives (SNID). It may be desirable to have more than one SNID 308, due to the speed, capacity, and convenience. When serial data is read some SNSD are "prefetch"in which perform proactive identification of subsequent commands read, given the history of recent commands. This property prefetch is useful in that it reduces the time needed to read from disk the information that is consistently. However, the time required for reading the disc information, which is not consistent, can grow if SNID receives the command, which is unexpected for him. In this case, the inherent SNID property prefetch may cause overflow of RAM SNID, which increases the time required to access the requested information. Therefore, it is advisable to have more than one SNID, because reading the serial data stream, for example, video programs can be executed faster. In addition, the option of access to a second set of data stored on a separate disk SNID, such as an audio program is, to promotional videos, to control information or advertisements, is appropriate because to access such information on a single SNID requires a greater amount of time.

Thus reads the compressed information from one or more SNID 308 and transfers it to the buffer 284. Buffer 284 with random access memory device FIFO type (FIFO-RAM), located in the module

140 play, receiving pieces of compressed data from the storage device 136 with a predetermined transmission speed. Buffer 284 with random access memory device FIFO type (FIFO-RAM) has sufficient capacity to ensure no overload or underload device 144 decoding and, accordingly, the projector 148 information. In a preferred embodiment, the buffer 284 with random access memory device FIFO type (FIFO-RAM) has a capacity of approximately 100 to 200 megabytes. The use of buffer 284 with random access memory device FIFO type (FIFO-RAM) is especially important because, when switching from one drive to another can be a delay of a few seconds.

Part of compressed data from the output buffer memory of mouth is Euston FIFO type (FIFO-RAM) serves in the network interface 288, that ensures the transfer of compressed data in the device 144 decoding. In a preferred embodiment, the network interface 288 is a fiber-optical interface FC-AL.

In an alternative embodiment that is not shown on a separate drawing, the data output module 140 playlist, proceed to the network switch, which is implemented by device 128 management cinema and which sends data to a specified device 144 decoding. Using a network switch allows you to transfer programs from any given module 140 play in any given device 144 decoding.

If you want to view program information representing a program that is extracted from the storage device 136 and transmit module 132 of the auditorium through the device 128 management cinema. The device 144 decoding decodes data received from the storage device 136 using the secret key information, which is provided only to the authorized cinemas, and performs decompression stored information using a decompression algorithm that represents the algorithm is the reverse of the compression algorithm that was used in the generator 108, the source data is. Through the device 144 decoding are converting the decompressed video data into a standard video signal format used in the projection system (which can be both analog and digital formats, and electronic projector 148 carry out the demonstration image on the screen. Also perform decompression of audio information and feed it through the sound system 152 the audience to play along with the video.

The block diagram of the device 144 decoding is also shown figure 11. The unit 144 performs decoding processing of the compressed/encrypted program, which is designed for visual projection on the screen or on some surface and for sound using a sound system 152. The control device 144 decoding is implemented by controller 312 or by device 128 management cinema, which contains at least one device 316 to the dissolution of the packets, the controller or Central processor 312, the buffer 314, the device 320 decrypt/decompress images and device 324 decrypt/decompress audio data. In the buffer can be implemented to temporarily store information intended for a device 316 to the dissolution of the packages. All these devices is to be implemented as one or more sets of electronic circuit boards. Together electronic circuit boards can be accommodated in a separate housing, which is fixed on the projector 148 or set next to him. In addition, can be used intellectual cryptographic card 328, which provides communication with the controller 312 and/or device 320 decrypt/decompress images and serving for transmission and memorization of specific information about a cryptographic key that is intended for a specific block.

Device 316 dissolution package (unzip) recognizes and separates individual packets of control data, image data and sound that come from module 140 playback, CPU 312 and/or device 128 management cinema. Can be carried out by the packet transmission control data to the device 128 management cinema, and packet transmission image data and the sound carried out, respectively, in system 320 and 324 decrypt/decompress images and audio data. Reading and writing is usually performed by a pulsed way. Therefore, to ensure a consistent flow of data coming from the device 316 to the dissolution of the packages directly in the projection apparatus, use of a buffer device 314 large capacity.

The device 128 management theater performs control is of the configuration, means of ensuring data protection and the functioning of the subsystem 104 cinema, as well as ongoing monitoring of its condition. These operations also include the management of external interfaces, modules 320 and 324 decrypt/decompress images and audio data, and the projector 148 and sound module 152. Sources of control information are module 140 playback, the CPU 312, the system 128 of the control device of cinema, remote control port or the input signal of the local management tools, such as remote control, outside casing or housing of the module 132 of the auditorium. The CPU 312 of the decoding device can also control the electronic keys assigned to each module 132 of the auditorium. For decoding video information and audio information pre-extraction process, together with information about electronic cryptographic keys, which are entered in the data about the image and sound data, use the predefined electronic cryptographic keys assigned to the module 132 of the auditorium. In a preferred embodiment, the Central processor 312 decoding device to perform a standard microprocessor programs embedded in the TS software each module 132 of the auditorium, which serve as the primary functional or control.

In addition, in the preferred embodiment, the controller 312 of the decoding device performs so that he could work together or exchange certain information with the device 128 management cinema thus, in order to ensure the preservation of historical impressions that occurred in each auditorium. Then at a pre-selected points in time can be transferred to the available information, which relates to this history shows, the hub 102 using the reverse communication channel or via a portable storage medium.

The device 320 decrypt/decompress images receives a stream of image data from the device 316 to the dissolution of the packet, decrypts and restores the original image in order to display it on the screen. The result of this operation usually receive standard analog signals in RGB (red-green-blue), served in the projector 148 for digital cinematography. Decryption and decompression, typically run in real time, which allows the playback of program material in real time.

In the decryption process uses ithout pre-generated information about the electronic cryptographic keys, intended for a specific device and a specific program, in conjunction with electronic keys contained in the data stream and for decoding video information. (Description of the decryption process was described above with reference to Figure 4.) Each subsystem 104 cinema provide the necessary information about cryptographic keys for all programs that are authorized for display in each module 132 of the auditorium.

To ensure the authorized screening of specific programs in specific demonstration systems that are granted this right, use the tool multilevel distribution of cryptographic keys. This tool is multi-level distribution of cryptographic keys typically uses a single value of electronic keys that are designed for each specific device 128 management cinema, which granted the right to display, for each specific video and/or audio program, and/or use changing over time a sequence of cryptographic keys contained in the video and/or audio program. Each module 132 auditorium programmed electronic key, "intended for a particular auditorium, which usually has a length of 56 bits or more.

Smart card 328 may be, for example, is designed so that when you load this value into the Board it cannot be read from the memory of the smart card. To prevent the possible misuse of this information about the key and detect attempts at unauthorized use or received the unauthorized for that subjects use physical and electronic security features to protect data. Save the key perform in such a way that it can be erased in case of attempts of illegal use. Electronic circuits smart cards contain a microprocessor core, which is implemented via an encryption algorithm, which is usually a standard encryption Yes the data (SSD) (DES). The smart card may provide input supplied to it values, the encryption (or decryption) of these values in the map algorithm SSD and pre-stored key that is intended for a specific audience, and to the output result. In an alternative embodiment, the smart card 328 can be used to transfer encrypted information on the electronic key to the electronic circuit in the subsystem 104 cinema, through which processes the key information for use in the processes of decoding image data and audio data.

Dynamic decompression of images from data streams of video performed by algorithm reverse DCPIB (discrete cosine transform with adaptive variable block size), or by other process of extracting images, which is symmetric with respect to the process of image compression that was used in the device 112 compression/encryption that is part of the Central hub. If the process of image compression based algorithm DCPIB, the extraction process comprises the following operations: perform decoding using a variable length code, perform an operation, arr is tnou the multiplication by the weighting factor, depending on the frequency, performs reverse differential conversion using Quad-tree, perform ADCP (inverse discrete cosine transforming (IDCT) and perform facing the alternation compacted blocks of DCT. The processing elements, which are used for extraction can be implemented as designed to perform this function, specialized hardware, for example by means of a specialized integrated circuit (ASIC) or through one or more sets of electronic circuit boards. Alternatively, processing device to perform decompression can be implemented through standard devices or conventional hardware, including through multiple devices digital signal processing, programmable electronic devices or computers, a management function which is realized by means of specifically designed for these tasks the software or by hardware. Can be implemented the option of using a variety of specialized integrated circuits (ASICs), providing parallel processing of video data and maintaining the high speed transfer of image data.

Carry out ciproa Lugovoe converting the decompressed image data, and output the analog signals to the projector 148. Alternatively, for transmitting uncompressed digital image data to the projector 148 may be applied to a digital interface that eliminates the need to use process of digital to analog conversion.

Device 324 decrypt/decompress audio data receiving sound data from the device 316 to the dissolution of the packets, decoding and restoring the original audio data for playback through speakers in the cinema or through a sound system 152. The result of this operation receive audio signals from a standard line level signal, which is served in the sound system 152.

Like device 320 decrypt/decompress images device 324 decrypt/decompress audio data, performs an operation, the reverse of which is done through the device 192 audio compression signal and device 196 encryption of the audio signal that are in the hub 102. Device 324 decoding decodes the audio information through the use of electronic keys from a cryptographic smart card 328 in conjunction with electronic keys embedded in the data stream. Then do the unpacking decoded audio data.

Decompress the audio data is carried out via an algorithm, which is symmetric with respect to the algorithm that was used in the Central hub 102 to compress the audio signal. Unpacking performed also in the case of a plurality of audio channels. The number of audio channels depends on the design of multi-channel sound system of a specific hall or the playback system. To ensure the establishment of a phonogram with advanced features, such as creating tracks sound channel in many languages and tracks with sound inserts that facilitate perception for viewers with visual impairments, can be transferred to additional audio channels from the Central hub 102. The system may also provide for the establishment synchronized with the video for more tracks to record data, such as track recording multimedia special effects, subtitles and special tracks with visual inserts that facilitate perception to viewers with hearing impairments.

As described above, the track record audio and data can be synchronized in time with the video or playback may not be performed by the asynchronous method without direct synchronization in time. Video can consist of single frames (i.e., one fixed and the views of), from a sequence of single frame representing a still image, or of sequences of moving images, with greater or lesser duration.

If necessary, the audio channels are served in a unit delay of a sound signal, which introduces the delay needed to ensure synchronization of the audio signal with the corresponding image frame. Then perform d / a conversion for each channel, which receive output signals, known as "linear signals, which are served in the sound system 152. That is, from the digital data to generate analog signals with the required level or format by which actuate the appropriate sound system. For the resulting linear audio signals typically use a standard connector type XLR or AES/EBU available in audio systems most cinemas.

Displaying the program on the screen in electronic form shall be implemented by the projector 148. The projector that delivers high quality image, is carried out on the basis of the latest technology, for example by means of methods of processing optical or video information using light valves on liquid crystals (SCIC) (LCLV). The projector 148 receives the image signal is of, coming from the device 320 decrypt/decompress images, which is usually a video standard RGB (red-green-blue). The transmission of information to control the projector 148 and monitor its condition is usually carried out on the controller 312 via the digital serial interface.

And again with reference to 11, the body 144 of the decoding device includes an interface 288 fiber-optic communication channel, the device 316 to the dissolution of the packets, the controller device decoding or the CPU 312, the device 320 decrypt/decompress images, the device 324 decrypt/decompress audio data and the cryptographic smart card 328. The housing 144 of the decoding device is a separate secure standalone enclosure which also contains the interface smart card 328 intended for encryption, internal power supply and/or stabilizer, the cooling fans (if necessary), remote to local control and external interfaces. As local controls can be used any of various known input devices, such as flat control panel with membrane switches and built-in led indicators. Remote local control is the exercise usually uses, or it forms a part of the door on the hinge, which provides access into the housing for maintenance or repair. This door has a secure lock that prevents unauthorized entry, theft or illegal use of the system. When installing the smart card 328, which contains information about the encryption key (the key that is designed for a particular auditorium), placed inside the housing 144 of the decoding device and fixed on the rear side lockable front panel. The access slit for inserting cryptographic smart cards can be made only lockable from the inside of the bezel. Protection connections located inside the housing 144 of the decoding device and intended to transmit a signal in RGB format output device 320 decrypt/decompress images in the projector 148, provide in a manner that prevents access to the signals in RGB format when the housing 144 of the decoding device is attached to the housing of the projector. To prevent the possibility of functioning of the device 144 decoding when it is improperly installed in the projector 148 use security lock.

Sound system 152 performs the playback of the audio portion of the program through g mcgovernites, available in the cinema. In a preferred embodiment, the sound system 152 receives up to 12 channels of audio signals standard format both in digital and in analog format, coming from device 324 decrypt/decompress audio data.

In another embodiment, the module 140 playback and device 144 decoding are combined into one unit 332 unit decoding playback. The merger module 140 and playback module 148 device decoding leads to lower costs and reduce access time, because the functions of the module 140 playback and device 144 decoding needs only one Central processing unit (292 or 312). For the combined module 140 playback and device 144 decoding is not required to use interface 288 fiber-optic communication channel.

In the case where it is desirable to browse in many areas, information in any storage device 136 link so that the transmission of compressed data representing the same video in different auditoriums could be implemented with predetermined programmable relative shifts in time or delays. In that case, when the demonstration of the same video in the selected set of auditoriums, it is desirable to produce, essentially, at the same time, these predetermined programmable time shifts perform essentially equal to zero or very small. In other cases, the magnitude of these shifts, depending on the configuration of the storage device, and the capacity can be set arbitrarily in the range from several minutes to several hours, which enables the creation of very flexible schedule sessions. This allows you to provide a cinema complex and more complete satisfaction of market needs in relation to entertainment events, such as when the premiere screenings.

On Fig shows another variant embodiment of the invention. Interface 344 user enables the direct management device 144 decoding, as well as the projector 148 and sound system 152. DB (a group of hard disks, 348 contains magnetic storage media, for example, a set of hard disk drives, in which the memorization of encrypted/compressed encoded information intended for playback in certain auditoriums during the periods of time stipulated in the schedule of sessions. GRW 348 perform scalable to ensure rational needs sufficient memory for each theater. The AOC is e, each GRW 348 contains built-in redundancy to prevent loss of stored information about the program in case of failure of the storage device. Each GRW 348 may be performed, for example, in the form of a system mounted in a rack, with the possibility of extension to provide to meet the changing needs in the presence of sufficient amount of memory for each theater system. Using DB 348 allows you to quickly send displayed on various screens available in the cinema complex, by device 128 management cinema, and schedule of programmes shown before the screening of full-length movies. This exercise is very flexible in a way that is convenient for quick response to changing needs or the needs of the market.

In the preferred embodiment, each GRW 348 perform so that its memory capacity was equal to that which is necessary to maintain programs designed to an appropriate audience. Thus, on the same screen in the same day, you can make the demonstration more than one full-length feature film program of two feature films). In addition, the availability of adequate capacity memory providing the has the ability to remember future programs prior to the date authorized display while storing programs, "permitted for display in current time. This memory allows you to transfer programs that intend to obtain a permit for their future show, several hours, days or weeks until the time when approval is received for the right to play them, and also to make such demonstration programs without violating the play and demonstration programs permitted for display in current time. It has been estimated that from the point of view of memory capacity for digital data in such arrangement, the required memory capacity of about 120 gigabytes for each auditorium. Such a memory involves the use of current techniques of compression and image processing, in which changes may occur that will allow in the near future to reduce these requirements.

For each program loaded in DB 348, perform dynamic memory allocation on the disk. This concept is valid for large theaters with multiple screens, because long and short program choreographed so that their duration was approximately equal to the nominal length, which is usually about two hours. For one-hall cinemas memory capacity, in principle, dagnabit such so it was enough to remember the longest programs.

GRW 348 also comply with this configuration or have the possibility of such adjustment configuration so that it can function in the presence of the bands" ("striping"), in which the information structure in the form of strips that run along the entire array, and its temporary memorization is carried out in a RAM (random access memory device) buffer 349. That is, when performing the save operation received data, which are intended to save, send by parts in different drives. Part of the input data is moved to one drive, and the next part move to the next drive, and so on. After a timeout, sufficient to ensure that the drive is able to write data can be re-scheduled to receive input data from this drive. Therefore, the received data are divided into constituent elements or segments of smaller size, saving each of them in each individual drive is performed with the maximum allowable for this drive from a separate drive (or high) speed due to buffering at the input or at the expense of the amount of memory available in the entrance channel of the drive. This allows essentially parallel input given what's in the device, having a slower transmission rate, and, therefore, to provide a very high transfer rate. This type of preservation also provides redundancy protection against errors.

When saving data in the hard drives or other storage devices use parity information, which allows you to restore the program after its extraction. That is, provided the means by which again establishes connection parts of the program during its extraction or demonstration.

In the preferred embodiment, each GRW 348 is performed based on the structure of the array using a redundant array of inexpensive devices (RAID), with the ability to restore an entire data file in case of failure of any drive in the array. GRW 348 generates status indicators and warning indicators to help locate and eliminate faults or fault localization. In this embodiment, can be implemented remote monitoring, remote control and remote diagnostics.

On Fig shows unit 128 controls the cinema. The device 128 management cinema provides control and operational management of the functioning of the entire demonstration subsystem or is adsystem 104 cinema, or one or more modules 132 of the auditorium, the existing cinema complex. The device 128 management cinema may also include the management tool software or a tool for generating sets of programs from one or more individual received video and audio programs that are scheduled to demonstrate through the auditorium during the permitted period of time.

The device 128 management cinema contains the processor 336 controller cinema and may contain, but not necessarily, at least one modem 340 or other device providing interface with reverse communication channel to send messages back to the Central hub 102. The device 128 management cinema can contain a visual display device, such as visual display device, and the device user interface, such as a keyboard, which can be in the office of the administrator cinema complex, at the ticket office or at any other appropriate location that is convenient to control the cinema.

The processor 336 controller cinema is usually a standard PC, suitable for business purposes or for execution of trading operations. With reference to Fig and n is 2, the processor 336 controller cinema liaise with the administrator of the network 120 and tool 124 control conditional access. In a preferred embodiment, use the modem 340, which provides communication with the Central hub 102. The modem 340 is typically a standard telephone modem, which is part of the processor or connected with it and connected to a standard two-wire telephone line that provides the ability to transmit data back to the Central hub 102. In alternative embodiments, the implementation of data exchange between the processor 336 controller cinema and the Central hub 102 can be performed by using other methods of communication with a low data rate, for example, via the Internet, private or public data networks, wireless or satellite communication. For these alternative embodiments, the modem 340 comply with this configuration, which provides a proper interface structure.

And again with reference to Figure 2, the device 128 management cinema provides the ability to link each module 132 of the auditorium with each storage device 136. The interface management module cinema can contain buffer is Amati, enabling high-speed transmission of data packets containing information from the device 136 remember to cinema through an interface 126 of the control device of cinema and their processing with lower speeds through other devices, included with module 132 of the auditorium.

The information exchanges which take place between the device 128 management cinema and administrator network 120 and/or 124 control conditional access, contains requests for retransmission of those pieces of information, taken subsystem 104 cinema, which contain uncorrectable errors in bits, management and control information, messages about operations and Troubleshooting, as well as information about cryptographic keys. Can be implemented cryptographic protection of messages to ensure protection from interception and/or for verification and authentication.

The device 128 management cinema can be designed to provide fully automated operation of the playback system, including the management functions of the playback/display, data security and network management. The device 128 management cinema can also manage these secondary functions of cinema is, as reservation and ticket sales, discounts and measures for the protection of the environment. Alternatively, as a further means to control some of the operations of the cinema can be used for manual intervention. The control device cinema 128 may also interact with some existing automation control systems, which are complex cinema, to control these functions or their adjustment. Option used depends on the currently known prior art and the specific needs of the cinema.

Through control implemented using either device 128 management cinema or administrator network 120, the present invention is, in General

the case provides the possibility of simultaneous playback and demonstration of the recorded programs on multiple projectors. In addition, in the presence of control through device 128 management cinema or administrator network 120, the procedure for granting authorization to the repeated playback of the program can be run often, although the reception of the program by subsystem cinema 104 need only be performed once. The management tool software data protection can assests the th control period, during which allowed the demonstration of each program, and/or the number of permitted acts playback.

Tool for automated preservation and demonstration programs are provided by an automated control unit 128 controls the cinema, which is implemented by module 120 of the network administrator. In addition, there is the possibility of control over some predetermined network operations at the location remote from the Central unit, which is implemented by a control device. For example, for a television or film Studio can be implemented to automate the process of distribution of motion pictures or other materials intended for display, and manage them from a Central space, for example from the premises of the Studio, and the possibility of almost immediate changes to the materials intended to show, given the rapidly changing market needs or reactions produced shows, or any other understandable in the art reason.

With reference again to Figure 2, the communication subsystem 104 cinema module 132 of the auditorium can be carried out through use of the network interface 126 of the cinema. The network interface 126 cinema contains a local area network (electronic or optical is th), which provides local routing software subsystem 104 cinema. The program saves each storage device 136 and forward them through the network interface 126 of cinema in one or more systems 132 auditorium, members of the subsystem 104 cinema. The network interface 126 of the cinema may be implemented using any of a variety of standard architecture local area network, which provide adequate data transfer rate, the connectivity of nodes in the network and reliability, for example, by ring networks with the arbitration logic, switched networks or networks with hubs.

And again with reference to Figure 2, each storage device 136 provides local preservation program material is allowed to play and demonstration. In one embodiment, the implementation of the data storage system is available in the system each theater. The device save 136 for cinema allows you to create through subsystem 104 cinema events in one or more auditoriums, a joint which can be carried out simultaneously in several auditoriums.

Depending on the capacity of the memory device 136 save for cinema can be carried out preserving at the same time, what about the several programs. The device 136 save for cinema can be connected through a local area network in a way that enables playback and demonstration of any program through any of the playback system (i.e., projector), which presents this right. Moreover, can be carried out simultaneous playback of the same program by two or more systems of play.

Thus, the proposed device and method of encoding, compression, encryption, and storage of the images and/or audio information. Among other distinctive features and advantages of the apparatus and method allow you to make flexible schedule of sessions of feature films and advertisements, to combine the audio signals with signals representing the image, and easy to implement measures to ensure data protection.

The above description of preferred embodiments given to a person skilled in the art can implement or use the present invention. For specialists in this field of technology is the obvious possibility of various modifications to these embodiments, but the General principles can be used in other embodiments implement without heart and soul is on the creation of new inventions. Thus, in the present invention mean that it is not limited demonstrated here variants of implementation, and has the widest scope of patent claims corresponding to those disclosed here, the principles and criteria of novelty.

1. Device for encoding and storing signals representing video information and audio information on the many media in which the device contains a generator source of data designed in such a way that converts the signals into digital video information and audio information, the compression device, is designed in such a manner that receives the digital video information and digital audio information coming from the generator of the original data and the compressed digital video information and digital audio information, device encryption, designed in such a manner that receives the compressed digital video information and the compressed digital audio information coming from the device, compression, and encryption the compressed digital video information and the compressed digital audio information, means of sharing encrypted compressed digital video information and the encrypted compressed digital audio information into many fragments, and a storage device, executed in such a way that carries prefragmented encrypted compressed digital video information and the encrypted compressed digital audio information, and distribution, the preservation of fragments of encrypted compressed digital video information and the encrypted compressed digital audio information on a variety of media.

2. The device according to claim 1, in which the preservation of pieces of video information and audio information performed separately and independently from each other.

3. The device according to claim 1, in which the compression device used method of compression by discrete cosine transform with adaptive variable block size.

4. The device according to claim 1, in which the compression device is designed in such a manner that carries out compression of the digital audio information with variable speed.

5. The device according to claim 1, in which the encrypted compressed digital video data represents at least one video program, and an encrypted compressed digital audio information represents at least one audio program and additionally contains the ID, the compression device is designed in such a way that provides by means of the identifier Association of one or more audio programs with at least one video program.

6. The device according to claim 5, in which the generator source data additionally contains a device for the formation of packets of program data, and give the TWT formation software packages performed by arranging the video information or audio information in identifiable groups to save it to the media.

7. The device according to claim 1, in which the generator source data additionally contains teleconferencing device.

8. The device according to claim 1, in which the generator source data additionally contains a computer workstation.

9. The device according to claim 1, in which the device encryption additionally contains a cryptographic key, and the preservation of a cryptographic key perform on the media key information and the cryptographic key needed to decrypt the video information and audio information.

10. The device according to claim 9, in which the media key information is a smart card.

11. The device according to claim 9, in which the media key information is a magnetic disk.

12. The device according to claim 9, in which the transmission of a cryptographic key.

13. The device according to claim 9, further containing a means of indicating the period of time during which information about the cryptographic key is valid, and provides the ability to use information about the cryptographic key only during this period of time.

14. The device according to item 13, in which the cryptographic key is designed so that after this period of time, perform it overwrite media information about the key.

15. The mouth of austo according to claim 1, in which the device encryption additionally contains at least one watermark, and the watermark is invisible to the perception by demonstrating the decompressed video information or audio information from a predetermined normal rate, but can be found in the demonstration specified video or audio information at a speed substantially different from that of the normal speed.

16. The device of clause 15, which by means of the watermark contains the information about the time and place of the demonstration, which is associated with the video information or audio information.

17. The device according to claim 1, additionally containing a network administrator, and network administrator configured to transmit control information to the generator source data in the compression device, device encryption and storage device and reception of these devices information about their condition.

18. The device according to claim 1, in which the device is made in such a way that establishes a communication channel, the communication channel is designed so that it can be carried out transmission and reception of information from the outside of the device.

19. The device according to p in which information contains control information and status information.

20. Device is on p, in which information contains updates for video information and audio information.

21. The device according to p, in which the communication channel contains data channel via a dedicated telephone line.

22. The device according to p, in which the communication channel contains data channel via a dial-up telephone lines.

23. The device according to p, in which the communication channel includes the channel packet data.

24. The device according to p, in which the communication channel contains a communication channel via the Internet.

25. The device according to p, in which the communication channel includes a wireless data channel.

26. The device according to p, wherein said channel contains satellite data transmission channel.

27. The device according to claim 1, wherein the storage medium contains at least one optical storage media.

28. The device according to item 27, in which the storage medium contains a plurality of optical media, and in which the preservation of video information and audio information for the plurality of optical carriers of information are not consistently.

29. The device according to item 27, in which the preservation of audio information are on a different optical media than video.

30. The device according to item 27, further containing Zack is giovannie signals, through which display promotional information, and in which save the encoded signals, whereby display of the advertising information, operate on a different optical media than video information and audio information.

31. The device according to item 27, in which the information carrier contains at least one digital versatile disk (DVD).

32. The device according to claim 1, wherein the storage medium contains at least one magnetic storage media.

33. The device according to p in which the media represents a set of magnetic media, and in which the preservation of video information and audio information on a variety of magnetic media information are not consistently.

34. The device according to p, in which the preservation of audio information are other magnetic storage medium than video.

35. The device according to p, optionally containing a coded signal representing the advertising information, and in which the preservation of the encoded signals representing the advertising information, carry out other magnetic storage media than video information and audio information.

36. The device according to p in which the information carrier contains at least one replaceable n is the drive on your hard disk.

37. The device according to p in which the information carrier contains at least one module DB (a group of hard disks), in which the module DB contains at least one storage element.

38. The device according to claim 1, wherein the storage device contains a means of using information about the identifier for communication of various pre-selected parts of video information or audio information from different media when saving.

39. The device according to claim 1, in which the device save for cinema additionally contains in itself the means of separation and duplication of information, which enables access to the stored pieces of video information and audio information with the required data rate and creates redundancy to protect against errors.

40. The device according to claim 1, additionally containing at least one LAN interface, which provided a link, at least, of the generator of the original data, compression devices, device encryption and storage devices interconnected through at least one LAN interface.

41. The device according to p, in which the network interface contains the Ethernet.

42. The device according to claim 1, in which the video information is presented in the form videopro the PAMM and videos made in the form of either a single still frame or sequence of frames, a demonstration shall be performed by a film of varying lengths.

43. The device according to claim 1, further containing a means of archiving the stored video information and audio information.

44. The device according to claim 1, in which the generator source data additionally contains a path of insertion, and the path of insertion so that it is denoted by the specific part of the program, which may be related information.

45. Device for encoding and storing signals representing video information and audio information on the many media in which the device contains a generator source of data designed in such a way that converts the signals into digital video information and digital audio information, the compression device, is designed in such a manner that receives the digital video information and digital audio information coming from the generator of the original data and the compressed digital video information and digital audio information, and the compression device used method of compression by discrete cosine transform with adaptive resizable nl the Cove, device encryption is performed in such a manner that receives the compressed digital video information and the compressed digital audio information coming from the device, compression, and encryption of the compressed digital video information and the compressed digital audio information, and a storage device, is designed in such a manner that receives the encrypted compressed digital video information and the encrypted compressed digital audio information coming from the device, compression, and distribution save encrypted compressed digital video data on multiple storage media in the form of video and distribution save encrypted compressed digital audio information on a different set of information carriers in the form of a sound program.

46. The device according to item 45, in which the media represents at least one module DB, and each module DB contains at least one storage element, and in which the preservation of video information and audio information in the storage elements of each module GRW conduct inconsistent.

47. The device according to item 45, additionally containing a coded signal representing the advertising information, and in which the preservation of the encoded signals representing the advertising information, Khujand who are in another storage element, than video information and audio information.

48. Method of encoding and storing signals representing video information and audio information on the information carrier, in which method comprises the following operations:

convert the signals into digital video information and audio information,

compress digital video information and digital audio information,

perform encryption of the compressed digital video information and the compressed digital audio information

perform the division encrypted compressed digital video information and the encrypted compressed digital audio information into multiple fragments and

perform a distribution preserving fragments of encrypted compressed digital video information and the encrypted compressed digital audio information on a variety of media.

49. The method according to p, in which the preservation of the compressed video information and audio information of each performed separately and independently from each other.

50. The method according to p, in which when performing compression using the compression method by means of discrete cosine transform with adaptive variable block size.

51. The method according to p, in which the compression of the digital audio information is performed with variable speed.

52. With the ESP on p, additionally contains the following operations: perform grouping encrypted compressed digital video information in the form of at least one video program, carry out the grouping of the encrypted compressed digital audio information in the form of at least one audio program and associate one or more audio programs with at least one video program.

53. The method according to p, in which when performing the conversion uses teleconferencing device.

54. The method according to p, in which when performing conversion operations using a computer workstation.

55. The method according to p, optionally containing an operation of generating a cryptographic key and the cryptographic key store on the media key information and the cryptographic key needed to decrypt the video information and audio information.

56. The method according to 55, in which the media key information is a smart card.

57. The method according to 55, in which the media key information is a magnetic disk.

58. The method according to 55, in which the transmission of a cryptographic key.

59. The method according to 55, optionally containing an operation of specifying a time period during which information about the cryptographic key is school is school, and ensure that information about the cryptographic key only during this period of time.

60. The method according to p, optionally containing an operation execution overwrite cryptographic key from the media key information after this period of time.

61. The method according to p, optionally containing an operation implementation generating at least one watermark, and the watermark is invisible to the perception by demonstrating the decompressed video information or audio information from a predetermined normal rate, but can be found in the demonstration specified video or audio information at a speed substantially different from that of the normal speed.

62. The method according to p, through which a watermark is information about the time and place of the demonstration, which is associated with the video information or audio information.

63. The method according to p, optionally containing an operation of providing the network administrator and the network administrator performs the transmission and reception of control information relating to the operations of generation, compression, encryption, and save.

64. The method according to p, optionally containing in itself the operation of establishing a communication channel through which PE is edcu and receiving information.

65. The method according to p in which information contains information about the status and control information.

66. The method according to p, which contains updates for signals of video and audio programs.

67. The method according to p, in which the communication channel is a dedicated phone line.

68. The method according to p, in which the communication channel is a public switched telephone line.

69. The method according to p, in which the communication channel is a channel for packet data.

70. The method according to p, in which the communication channel is a communication channel via the Internet.

71. The method according to p, in which the communication channel is a wireless data transmission channel.

72. The method according to p, wherein said communication channel is a satellite data transmission channel.

73. The method according to p in which the information carrier contains at least one optical storage media.

74. The method according to p in which the information carrier is a plurality of optical information carriers, and in which the preservation of video information and audio information for the plurality of optical carriers of information are not consistently.

75. The method according to p, in which the preservation of audio information are on a different optical media than video.

76. JV the property on p, additionally contains the save operation of the advertising information, and the preservation of advertising information are on a different optical media than video information or audio information.

77. The method according to p in which the media represents at least one digital versatile disk (DVD).

78. The method according to p in which the media represents at least one magnetic storage media.

79. The method according to p in which the media represents a set of magnetic media, and in which the preservation of video information and audio information on a variety of magnetic media information are not consistently.

80. The method according to p, in which the preservation of audio information are other magnetic storage medium than video.

81. The method according to p, optionally containing a save operation of the advertising information, and the preservation of advertising information are other magnetic storage media than video information and audio information.

82. The method according to p in which the media represents at least one removable hard drive.

83. The method according to p in which the media represents at least one module GRW, the rich module DB contains, at least one storage element.

84. The method according to p, optionally containing phase preserving the phase information of the identifier for the communication of different pre-selected pieces of video information or audio information from various media, consisting of at least one of the recording media.

85. The method according to p, optionally containing splitting operation and duplication, allowing access to the stored video information and audio information with the required data rate and creates redundancy to protect against errors.

86. The method according to p, optionally containing an operation of providing at least one LAN interface.

87. The method according to p, in which the network interface is an Ethernet network.

88. The method according to p in which video information is presented in the form of video, and video made in the form of either a single still frame or sequence of frames, the display of which provide as films of varying lengths.

89. The method according to p, optionally containing the backup operation stored video information and audio information.

90. The method according to p, optionally containing an operation mark a specific part of the program, to the Torah may be related information.



 

Same patents:

FIELD: access control systems.

SUBSTANCE: proposed signal processing method involves reception of digital input signal incorporating first component of scrambled signal and second component of scrambled signal; binding of input signal with detachable intelligent card unit for processing first scrambled signal component and generation of first descrambled signal which is internal with respect to intelligent card unit and for processing second scrambled signal component in case of response to first descrambled signal to generate second descrambled signal and to integrate first scrambled signal component of input signal and second descrambled signal so as to produce output signal; reception of output signal from intelligent card unit and processing of second descrambled signal to shape signal adapted for display.

EFFECT: improved control of access.

1 cl, 9 dwg

The invention relates to an electronic audiovisual processing

The invention relates to scramblers device, in particular for digital TV systems

The invention relates to the field of broadcasting and reception, to the conditional access system for broadcast system, the device generating signals for use in said system

The invention relates to access control systems that contain smart card

The invention relates to data processing systems, storage devices and implementing specific programs using memory cards

The invention relates to a television technique and can be used to format the executable code and data that define interactive programs

The invention relates to methods of protection against videocapture

FIELD: access control systems.

SUBSTANCE: proposed signal processing method involves reception of digital input signal incorporating first component of scrambled signal and second component of scrambled signal; binding of input signal with detachable intelligent card unit for processing first scrambled signal component and generation of first descrambled signal which is internal with respect to intelligent card unit and for processing second scrambled signal component in case of response to first descrambled signal to generate second descrambled signal and to integrate first scrambled signal component of input signal and second descrambled signal so as to produce output signal; reception of output signal from intelligent card unit and processing of second descrambled signal to shape signal adapted for display.

EFFECT: improved control of access.

1 cl, 9 dwg

FIELD: television.

SUBSTANCE: device converts signals to digital video information. Compression device is made in such a way, that it receives digital video data, coming from source data generator, and compresses digital images. Encoding device receives compressed digital video data coming from compression device and encodes compressed digital video data. Recording device stores encoded compressed digital audio data at data carrier.

EFFECT: higher data transfer speed.

3 cl, 17 dwg

FIELD: broadcasting systems.

SUBSTANCE: method includes broadcasting of message, including text portion intended to reach user, while said message is transferred in form of conditional access message.

EFFECT: broader functional capabilities.

5 cl, 7 dwg

FIELD: digital audio and video technologies.

SUBSTANCE: device for storing information is made with possible receipt of data carrier, decoder is made with possible receipt of compressed encoded signals from data carrier and transmitting signals to decrypter. Decrypter is made with possible decryption of compressed encoded data encrypted data and transmitting these to decompressor. Decompressor is made with possible receipt of compressed encoded signals from decrypter and decompression of compressed encoded signals to reproduce the image.

EFFECT: higher precision, higher efficiency.

3 cl, 17 dwg

FIELD: engineering of systems for loading and reproducing protective unit of content.

SUBSTANCE: in accordance to invention, in receiving device 110 for protected preservation of unit 102 of content on carrier 111 of information unit 102 of content is stored in protected format and has associated license file, file 141 of license being encrypted with usage of open key, associated with a group of reproduction devices 120,121, and, thus, each reproduction device 121 in group can decrypt file 141 of license and reproduce unit 102 of content, and devices not belonging to group can not do that, while device 121 for reproduction may provide the open key, specific for given device, to system for controlling content distribution, and then system for controlling content distribution returns secret key for group, encrypted with open key of device 121 for reproduction, after that device 121 of reproduction by protected method receives secret key of group and may decrypt file 141 of license.

EFFECT: creation of system for loading and reproducing protected unit of content, making it possible to constantly control usage of unit of content.

3 cl, 4 dwg

FIELD: copy/access protection.

SUBSTANCE: audio/video stream processing system includes module for inputting audio/video stream, which receives audio/video stream, containing field of information about audio/video content, including first copy control information, and audio/video content field, including second copy control information; reading module which extracts first and second copy control information from received audio/video stream and determines whether first copy control information is modified; and module for decoding audio/video stream, which processes received audio/video stream in accordance to predetermined criteria, if first copy control information is modified.

EFFECT: protection of content, prevented unsanctioned processing of content.

15 cl, 8 dwg

FIELD: cryptographic protocols, in particular, efficient encoding at content level.

SUBSTANCE: method is provided for generation of digital data with cryptographic protection, encoding content and composed into messages. Encoding of at least a part of the message is performed and encoded messages are provided in form of output signal in format, allowing the interface of server service to compose a message in form of at least one packet, including at least one header and useful load, where at least one header includes information, which allows the service interface in the client to assemble each message for decoding application using useful load of packets. Each message is divided onto the first and at least one additional section of the message. At least one of the message sections is encoded in such a way that it may be decoded independently from other message sections. Assembly of encrypted message is performed by addition of resynchronization marker, separating the message section from adjacent message section and including precise information about synchronization, at least for additional sections of the message.

EFFECT: synchronized decoding process in case of data loss.

14 cl, 8 dwg

FIELD: receivers/decoders of services, provided in conditional access mode, in particular, receivers having storage block (memorization device), such as a hard drive.

SUBSTANCE: method is claimed for storing an event, encrypted with usage of at least one control word (CW) in receiver/decoder (STB), connected to safety block (SC), where at least one control word and access privileges for aforementioned event are contained in access control messages (ECM-messages), method includes following operations: recording of encrypted event, and also of at least one ECM-message in storage block; transmission of at least one ECM-message into safety block (SC), verification of the fact that safety block (SC) contains access privileges for aforementioned event, generation of receipt (Q), which contains data related to management of event in reproduction mode, where receipt (Q) contains signature (SGN), generated on basis of the whole ECM-message or its part with usage of secret key (K) contained in safety block (SC) and specific for every safety block, where during later consumption of event the authenticity of the receipt (Q) is verified in prioritized manner compared to conventional access privileges, stored in safety block (SC), storage of aforementioned receipt (Q) in storage block.

EFFECT: provision of method for storing an event.

6 cl, 3 dwg

FIELD: receivers/decoders of services, provided with certain conditions, in particular in a system for accessing an encrypted data stream, priced per time unit.

SUBSTANCE: system contains control center (2), which transmits a data stream through a broadcasting channel, encrypted by means of control words, which are included in composition of access control messages, and meant for receipt by at least one user device (1), connected to safety block (3), having unique address and containing credit, which is reduced with purchase of products or consumption of data stream, where safety block (3) is provided with means for reducing credit for value, dependent on product, or for value, dependent on duration of access to data stream, where aforementioned values and/or duration are determined in access control messages or in conditional access messages, and system contains means, made independent from user device (1), for transmitting identifier, representing a unique number, and price code which indicates size of credit subject to load, in control center (2), and control center (2) additionally contains devices for receipt and verification of price code and for transmission of an encrypted message through broadcasting channel, having a unique address, corresponding to identifier, and giving a command to the safety block (3) to load the credit in defined amount.

EFFECT: development of a new approach to provision of access to paid television for broad clientele, substantially reduced subscriber management related costs.

5 cl, 1 dwg

FIELD: information encryption.

SUBSTANCE: system contains an encrypted data broadcasting centre, at least one control centre, a terminal device, a decoder located between the encrypted data broadcasting centre and the terminal device, the decoder includes an encrypted data reception and decryption module and a data access authority control module; the data access authority control module contains a protection module.

EFFECT: provision of system allowing to simplify access authority control at broadcasting centre level and ensuring optimal data security.

12 cl, 2 dwg

Up!