Method for recording information on data carrier, method for reproduction of information from data carrier, method for modifying data on data carrier

FIELD: optical data carriers.

SUBSTANCE: method includes stages, during which manufacturer information is recorded on carrier, which is used for supporting specific function of manufacturer, while manufacturer information contains identification information of recorder manufacture, which recorded and/or modified data of data carrier, different from identification information before recording or modification.

EFFECT: higher speed of operation, higher efficiency.

6 cl, 8 dwg

 

The technical FIELD

The present invention relates to the field of optical recording and reproducing video and/or audio data, and more particularly to a recording medium and a recording device for storing identification information of the manufacturer of the recording device, changing the contents of the recording media, and recording device and/or reproducing device, which use specific information of the manufacturer, and method for their implementation.

PRIOR art

Figure 1 shows the one-dimensional structure of a recording medium of a General nature, the scope of which includes the region of the volume and file structure and area, which contains the actual data (the blocks #1, #2, and #3). Real data can be recorded in unordered mode in a predefined block of program type or title. As shown in figure 2, in the region of the volume and file structure is recorded General information about the disk and information about the file and directory.

Figure 2 shows the files in the file system, used for recording and playback of audio and/or video (a/V) data rewritable recording media. File bit stream is a file that contains both real And/data. The information file contains information about the file a bit sweat the ka. Also, the file system may contain a resource file.

Figure 3 presents the content of the file is shown in Figure 2. The content of the file can be processibility formatted information bit stream having a common format for manufacturers, and specific information of the manufacturer, which has a unique format that is not compatible with other manufacturers.

Formatted information, including information about the General functions that are not dependent on the manufacturer needed to support compatibility information. For example, the formatted information contains information about the start position of the header of a particular file in the file bitstream and compliance information specific position of a specific time interval. Recording and/or reproducing device through the formatted information receives information about which file position of the bitstream recording and what position you want to play, and records/reproduces the file bit stream based on the received information.

Compatibility information the manufacturer that is used by each manufacturer to maintain its specific functions, not mandatory. An example of a specific function that uses the information of the manufacturer, m which may be a function of recording information reproduced in the last position in the file bit stream, as a unit the manufacturer's information and automatic playback during subsequent playback of the recording medium, starting from the position following the last played position. A specific feature is supported only in recording/reproducing the recording medium device, which can maintain the information of the manufacturer.

In more detail, the content information of the manufacturer includes a header information of the manufacturer, containing, for example, information on the number of units (n) is the manufacturer's information the same number of pointers search the manufacturer's information contains information about the positions of the respective pieces of information of the manufacturer (the search index information manufacturer #1... search index information manufacturer #n), and the corresponding unit information manufacturer (unit information manufacturer #1,... unit information manufacturer #n). It is assumed that the recording/reproducing device manufacturer will have at least one unit of information of the manufacturer.

The content of the information unit of the manufacturer can be understood and used only in the recording/reproducing device specific manufacturer, which formed these units of information of the manufacturer which is incompatible with the recording/waspressed the relevant devices from other manufacturers.

As described above, since the information for the specific function of individual manufacturer is not compatible, if the recording medium having the information of the manufacturer, produced by the manufacturer And shall perform additional write/delete recording/editing device of the manufacturer, the information of the manufacturer And may become invalid. Since the information for the manufacturer And is unique, only the manufacturer And can parse and modify this information. Thus, the manufacturer may not modify or manipulate information manufacturer A. When the recording medium whose contents are modified, reused recording/reproducing device manufacturer for further recording or playback may occur incorrect operation as a unit of information, in which the manufacturer And set information for a specific function may be invalid. Therefore, when the recording medium is again loaded in the recording/reproducing device of the manufacturer And, before using the information of the manufacturer And, it is always necessary to verify whether this information is valid. The scanning processes are complex and require a long time in the presence of a large number of recorded a/V data.

The INVENTION

The first objective of the present invention is to provide a recording medium for storing information manufacturer specific functions of the recording/reproducing devices from various manufacturers.

The second objective of the present invention is to provide a recording medium for storing identification information of the manufacturer of the recording/editing device, which latter performs write/delete on the recording media.

A third objective of the present invention is to provide a recording/editing device and method of storing information of the manufacturer on the recording media specific functions of the recording/editing device of each individual manufacturer.

The fourth objective of the present invention is to provide a recording/editing device and method for storing identification information of the manufacturer of the recording/editing device, performing a write/delete on the recording media.

The fifth objective of the present invention is to provide a recording/reproducing device and method of use of the information of the manufacturer on the recording media specific functions of the recording/reproducing devices each individual manufacturer.

Sixth ass is her present invention is to provide a recording/reproducing device and method validation whether identification information of the manufacturer of the recording/editing device, which latter performs write/delete on the recording medium is the same as the identification information of the manufacturer of the recording/reproducing device, for determining whether the information of the manufacturer of the recording/reproducing device is valid or not. That is, if both of the above identification information is identical, the unit information of the manufacturer are valid. If not, then the unit information manufacturer may not be valid, therefore, requires a full scan.

For performing the above tasks is provided a rewritable recording medium that stores audio/video (a/V)formatted information for a/V data and information of the manufacturer that support specific functions of the manufacturer, at which information manufacturer contains the identification code of the manufacturer of the recording device, which last modified the contents of the recording media.

To perform the aforementioned task is also provided a recording device for recording and/or editing audio, video and/or data on the rewritable recording medium containing the controller accounts for the building And/data formatted information for a/V data and the manufacturer's information supporting specific functions manufacturer, and the information of the manufacturer contains the identification code of the manufacturer of the recording device, which last modified the contents of the recording media.

To perform the tasks mentioned above also provides the playback device for playback of audio, video and/or data on the rewritable recording medium containing controller playback to playback a/V data, the formatted information for a/V data and the manufacturer's information supporting specific functions manufacturer, and the information of the manufacturer contains the identification code of the manufacturer of the recording device, which last modified the contents of the recording media.

To perform the aforementioned task is also provided a method of recording and/or editing audio, video and/or data on the rewritable recording medium containing the step of recording the identification code of the manufacturer of the recording device, which last modified the contents of the recording media when the recording/editing the recording media.

For performing the above tasks in the recording/reproducing device is also provided a method of recording/playback of audio, video and/or data on the rewritable recording medium, using the information of the manufacturer, recorded on the recording medium, comprising the step of validating the identity identification code of the manufacturer of the device that last modified the contents of the recording medium and the identification code of its manufacturer, to determine whether the specific information of the manufacturer are valid.

BRIEF DESCRIPTION of DRAWINGS

The above-mentioned objectives and advantages of the present invention are explained in the detailed description of the preferred alternative implementation of the present invention according to the appended drawings.

Figure 1 shows a one-dimensional structure of a recording medium of a General nature;

Figure 2 shows the structure of the file is presented on Fig 1;

Figure 3 shows the content of the file represented in figure 2;

Figure 4 shows the functional diagram of the device for optical recording and reproduction in which the present invention is applied;

Figure 5 shows a table representing an example of the detailed contents of the header information of the manufacturer to support specific functions of the manufacturer according to the present invention;

6 shows a table representing another example of the detailed contents of header information and the of by in accordance with the present invention;

7 shows a table representing the contents of the search index information of the manufacturer according to the present invention; and

Fig shows a table representing the contents of the information unit of the manufacturer according to the present invention.

DESCRIPTION of the PREFERRED OPTION IMPLEMENTATION

Next, here is the preferred implementation of the recording media and recording/editing device for storing information of the manufacturer that support specific functions of the manufacturer, the recording/reproducing device for use the manufacturer's information supporting specific functions according to the present invention, and preferred embodiments of the method, it provides will be described.

Figure 4 shows the functional diagram of the device for optical recording and playback, in which is applied the present invention. The function of the recording device And the data on the recordable and rewritable recording medium and reproducing a/V data from it is divided into the recording process and the playback process.

During recording And/coder-decoder 110 encodes the compressed input a/V signal according to a predefined coding scheme with compression. The digital processing unit (CPU) 120 receives a/V data supplied on the a/b encoder-decoder 110, adds data parity for processing code error correction (CRO), and performs modulation in accordance with a predefined modulation scheme. Amplifier radio frequency (URC) 130 converts the data supplied from the CPU 120 in the radio frequency (RF) signal. Block 140 read and write stimulates the recording media, recorded on the recording media data corresponding to the RF signal from URC 130, and includes the actuator to perform focusing and tracking. The tracking system of automatic control (SSAR) 150 receives from UHF 130 and the system controller 160 of the information required to control SCAR, and provides stable operation servo systems of automatic control. System controller 160 controls the entire system, controls a/V data that must be recorded on the recording medium, and records information about the size and position of the compressed data and the information of the manufacturer of the recording/editing device that performs a specific function recording/editing. Also, the system controller 160 determines whether the valid information of the manufacturer, recorded on the recording medium, using the identification information recording/editing device performing the functions of the recording/editing when the placenta is eaten accessing the recording medium, and manages the process of writing/editing, using certain information to the manufacturer.

During playback, the unit 140 reading and writing delivers the optical signal, read out from the recording media on which data is stored. URC 130 converts the optical signal into electrical and allocates zerosignal for forming servo and modulated data. The CPU 120 demodulates the modulated data supplied from the UHF 130 according to the scheme used during modulation, corrects errors by process KIO, and deletes the data parity. SAR 150 receives from URC 130 and the system controller 160 of the information required to control the tracking automatic control system, and provides a stable work tracking system. A/b encoder-decoder 110 decodes the compressed a/V data received from the CPU 120, and outputs an a/V signal. System controller 160 controls the entire system for reproducing data using the information recorded on the recording medium, and implementing the user interface, i.e. the processing of user input from the keyboard. Also, the system controller 160 determines whether the information of the manufacturer, recorded on the recording medium, full, using the identification information recording/editing device that performs functions Zap the si/editing during the last access to the recording media, and controls playback using certain information to the manufacturer.

Figure 5 shows an example of a table containing detailed information for specific functions manufacturer to be included in the header information of the manufacturer according to the present invention. The table may consist of field MNFI_Ns, containing information on the number of units the manufacturer's information identification code of the manufacturer (LAST_MN)that identifies the manufacturer of the recording/editing device, which last modified the contents of the recording media. In addition, the table may contain product code (LAST_PROD), which defines the model of the recording/editing device, which last modified the recording medium, and operation code (OP_CD), expressed in pre-defined code that indicates whether the operation was performed, the recording/editing device, for example, the operation of changing the A/V data bit stream on the recording medium by recording, editing, erasing, or other specific functions other than simple playback.

The manufacturer's identification code is required to classify the different manufacturers, it is assumed that the relevant manufacturers will have unique values in this code. This may be a simple text names of the manufacturers, because almost unbelievable that different manufacturers have the same names.

Operation code is compatible, because it must understand the various manufacturers. Information recording/editing device performing recording/editing with final appeal to the recording medium, and information about the operation is ensured by recording this information in the header information of the manufacturer of each recording/editing device when recording/editing on the recording medium. When it comes to just playing the data identification information of the manufacturer of the playback device is not recorded in the header information of the manufacturer, because the content of the recording medium is not changed.

Below are several examples of the use of the manufacturer's information having the above data structure. If the manufacturer And produces a unit of information of the manufacturer and records information on the recording media while the recording media is edited recording/editing device manufacturer In the recording/editing device of the manufacturer before you remove the recording media from the device writes the header information of the manufacturer identification code will produce the I, model code recording/editing device and an operation code indicating that the operation was performed editing, as shown in Figure 5.

When the data recorded on the recording medium, rewritten, edited, and played back the recording, editing and reproducing devices of the manufacturer And using the unit information of the manufacturer and the identification information of the manufacturer, which the latter used the recording medium, model information recording/editing device, information about the executed transaction from the header information of the manufacturer, it is determined whether the unit information of the manufacturer that you want to use during the recording, editing and playback valid.

If the manufacturer's identification code recorded on the recording medium, that identifies the manufacturer, altering the last recording medium corresponds to the identification code of the manufacturer of the recording/editing/reproducing device, this means that the unit of information the manufacturer is valid. If the manufacturer's identification code recorded on the recording medium, does not match the identification code of the manufacturer, the need is to determine whether the unit information of the manufacturer that you want to use, valid, analyzing the contents of all the recording media. If unit information manufacturer valid, they can be used.

Also, when the current recording/editing device is recording/editing device, which last modified the recording medium, and the last was performed editing operation, it is easy to conclude that the unit information manufacturer for the manufacturer is valid, because you can update the unit information of the manufacturer according to the operation recording/editing, analyzing unit information manufacturer corresponding to the modified contents of the media. Thus, it is possible to reduce the time required to determine whether the unit information of the manufacturer are valid. If unit information manufacturer's valid, then you can record, edit, and/or reproduction of information using these units of information of the manufacturer.

Figure 6 shows another example of the header information of the manufacturer according to the present invention. Shown in Fig.6 field MNFI_NS contains the number of units the manufacturer's information field MNFIT_EA contains the last address of the manufacturer's information field LAST_MN contains Eden is Picatinny manufacturer code recording/editing device, that last modified the contents of the A/V data. Field LAST_PROD contains the code for the model of the device in which the contents of a/V data was last modified. Field MN_CD contains code of the manufacturer relating to the specified number of units of information of the manufacturer. Field PROD_CD contains the model code of the device corresponding to the pieces of information of the manufacturer. Field FILE_NAME contains the name of the additional file for individual information, and field REC_TM contains the time value of individual account information. Field MN_CD and/or PROD_CD and/or FILE_NAME and/or REC_TM can be written in the initial part of the relevant information elements of the manufacturer.

To limit the size information of the manufacturer specifies a maximum value for the field MNFI_NS (for example, up to 5). When the number of items of information is the manufacturer's maximum value is exceeded, the oldest entries can be deleted. If there is an additional file to the unit the manufacturer's information deleting unit the manufacturer's information is deleted and the appropriate file. When recording/editing device having its own unit information manufacturer modifies the contents of the recording medium, modified only by the corresponding manufacturer information, and other unit information manufacturer should remain unchanged is mi. When the content of the recording medium is changed, the recording/editing device that does not have its own unit of information of the manufacturer, even in this case, the identification code of the manufacturer should be written.

Field MNFIT_EA contains the last address information of the manufacturer, for example, contains a relative block number (BSS) from the position of the first byte of the header information of the manufacturer. Field LAST_MN denotes the manufacturer's identification code, which was last changed content And/data. When changing the content of a/V data recording/editing device field LAST_MN must be filled in, even if it means recording/editing device there is no unit information of the manufacturer. Field LAST_PROD defined by the manufacturer that indicates the model ID of the device that was last changed content And/data. When changing the content of a/V data recording/editing device, this field must be filled in, even if it means recording/editing device there is no unit information of the manufacturer. As manufacturer identification codes should be classified in relation to the respective manufacturers, it is preferable that they had a unique value in accordance with relevant is ejstvujuschij manufacturers. Because the manufacturer can produce different models, it is also recommended that codes models of devices controlled by the manufacturer.

That is, in order to make the content real And/identical data content And the data device in which the content And/data changes must record the identification information of the manufacturer in the field identification code of the manufacturer (LAST_MN) header information of the manufacturer, even if it has none of the information unit by the manufacturer. Also, when the recording medium is inserted into the device, it is necessary to check whether the actual contents of a/V data is identical to the unit the manufacturer's information which is specific to the content And/data In the recording media for a given manufacturer. The first and the easiest way to verify this is to check the manufacturer's identification code, which changed the recording media in recent times. When the content of the a/V data was changed by the equipment manufacturer, the specified device is to change or update information for the content And/data.

Field MN_CD and PROD_CD contain codes manufacturer codes and models, on which the recording medium is kept the same as is stored pieces of information of the manufacturer, in order to determine which manufacturer is what specific model relates each piece of information of the manufacturer. If the information for products manufacturer is located in an additional file, the field FILE_NAME contains the name of the file. If the optional file is missing, the field FILE_NAME is filled with special meaning. Field REC_TM indicates the recording time information. Field MN_CD, REC_TM, PROD_CD AND FILE_NAME can be written in the initial part of the respective pieces of information of the manufacturer.

Figure 7 presents a table that includes a field MNFI_SA that contains the search index information of the manufacturer and indicates the start address of the information unit by the manufacturer. Field MNFI_SA is the start address of the information unit by the manufacturer, for example, the relative block number (BSS) from the position of the first byte of the header information of the manufacturer.

On Fig depicts a table showing the contents of information units of the manufacturer according to the present invention, which contains a variable number of bytes.

The maximum amount of information is, for example, 10 Kilobytes (KB). When the amount of information exceeds 10 KB can be used for additional file information for the manufacturer.

As mentioned above, according to the present invention, is provided a recording medium containing a/V data, the formatted information for use In data recording and playback, and the information of the manufacturer, supporting specific what kind of function manufacturer which cannot be performed using only the formatted information. In addition, it provides the information of the manufacturer to support multiple pieces of information of the manufacturer. This information also contains the identification code of the manufacturer who last modified the contents of the recording media. This information can be used to check the validity of your own units the manufacturer's information when the recording medium is recorded, edited and played a variety of devices from different manufacturers, because the unit information manufacturer is specific to the manufacturer and cannot be controlled by the device from another manufacturer. Accordingly, it is possible to reduce the time required to determine whether the unit information of the manufacturer are valid.

1. The way you write and/or edit data on the recording media that contains the following stages: record information of the manufacturer to maintain specific functions manufacturer, with the information of the manufacturer contains the identification information of the manufacturer of the recording device that recorded or modified the data of the recording medium that is different from the identification information to the entry or modification.

2. The method according to claim 1, which stage is niteline contains the stage, where are recording an identification code of the model recorders manufacturer, which modified the data of the recording medium when the recording/editing on the recording media.

3. The method according to claim 1, wherein the identification information corresponds to the manufacturer of the recording device, which is the last recorded or modified the data of the recording media.

4. The method of recording data on a rewritable storage medium containing the formatted information with the General format for manufacturers, and specific information of the manufacturer, which has a unique format, with the recording/reproducing device using the information of the manufacturer to maintain specific functions manufacturer, which was recorded on the recording medium, when the information of the manufacturer contains the identification information recording device that recorded data of the recording media containing the following steps: verify that the identification information of the manufacturer of the device, recorded or modified on the recording medium, which identifies the manufacturer, altering the last recording medium, identification information of the manufacturer of the recording and the playback device to define the tion, whether the specific information of the manufacturer of the recording and reproducing device is valid, when the identification information of the manufacturer, recorded on a medium is different from the identification information to the entry or modification of

5. The method according to claim 4, which further comprises a step of verification of conformity identification of the model code of a device that modified the data of the recording medium and the identification code of the model recording/reproducing device to determine whether the specific information of the manufacturer of the recording/reproducing device is valid.

6. The method according to claim 4, in which the identification information of the manufacturer complies with the manufacturer of the recording device, which last modified the data of the recording media.

7. The method of recording data on a rewritable recording media, containing the following steps: modifying data on the recording medium, and recording information of the manufacturer to maintain specific functions manufacturer, and the information of the manufacturer contains the identification information of the manufacturer of the recording device, and identification information of the manufacturer of the recording device indicates the manufacturer of the recording device, when this decree is fair identification information of the manufacturer of the recording device, which writes and modifies the data of the recording medium that is different from identification information of the manufacturer to the entry or modification.

8. The method according to claim 7, which further comprises a step in which record information model code indicating the model of the recording device that modifies the data of the recording media.

9. The method according to claim 8, which further comprises a step, in which the write operation code that specifies information about transactions recording device, in contrast to playback the data on the recording media.

10. The method according to claim 9, in which information about the opcode is compatible for many different manufacturers.

11. The method according to claim 7, which further comprises a step, in which the record unit information of the manufacturer-specific manufacturer of the recording device.

12. The method according to claim 8, which further comprises a step, in which the record unit information of the manufacturer specific to manufacturer and model code indicating the model of the recorder.

13. The method according to item 12, which further comprises a step in which recording time information indicating the time when the unit information manufacturer is recorded on the recording media.

14. The method according to item 12, which additional is but contains a stage, when you write code which manufacturer and model code in the initial part of the information unit by the manufacturer.

15. The method according to claim 11, which further comprises a step in which record search pointer indicating the start address of the information unit by the manufacturer.

16. The method according to claim 11, which further comprises a step, which updates the number of the total number of units the manufacturer's information recorded on the recording media.

17. The method according to clause 16, which further comprises a step, which determines whether a specified number of total number of pieces of information of the manufacturer of the pre-specified limit, and if exceeds, carry out the removal of the old unit the manufacturer's information stored on the recording media.

18. The method according to claim 8, which further comprises a step, in which the write address of the manufacturer's information which includes identification information of the manufacturer information and model code.

19. The method according to claim 9, which further comprises a step in which record the last address of the manufacturer's information which includes identification information of the manufacturer, information model code and the code of the operation.

20. The method according to claim 7, in which the identification information of the manufacturer complies with the manufacturer of the recording device is Ista, that last modified the data of the recording media.

21. Method of modifying data on the recording media containing the following steps: recording on the recording medium information of the manufacturer to maintain specific functions of the manufacturer, which contains the identification information of the manufacturer of the recording and reproducing device that indicates the manufacturer of the recording and reproducing device that recorded or modified the data of the recording medium that is different from identification information of the manufacturer to the entry or modification, and reads the identification information of the manufacturer, check the correspondence of the identification information of the manufacturer, recorded on the recording medium, which identifies the manufacturer, altering the last recording medium, identification information of the manufacturer of the recording and reproducing device and carry out the reading of data, using the information of the manufacturer that support specific functions of the manufacturer, the coincidence of the identification information of the manufacturer, recorded on the recording medium, which identifies the manufacturer, altering the last recording medium, identification information of the manufacturer of the recording and reproducing device.

<> 22. The method according to item 21, which further comprises a step in which read data from a storage medium to determine whether the data is valid, if it is determined that the read identification information of the manufacturer, recorded on the recording medium does not coincide with the identification information of the manufacturer of the recording and reproducing device, and carry out the reproduction of the read data, when the condition determining read data as valid.

23. The method according to item 21, which further comprises a stage in which only update unit information manufacturer-specific manufacturer of the recording and reproducing device, and update the remaining units of the manufacturer's information already recorded on the recording media.

24. The method according to item 21, in which the identification information of the manufacturer complies with the manufacturer of the recording device, which last modified the data of the recording media.

25. The method of playback data from the recording medium on which the recorded identification information of the manufacturer, including the following steps: read from the recording medium information of the manufacturer to maintain specific functions of the manufacturer, which contains the identification information of the manufacturer of the device, which zapisywa is about or modified data recording media, different from the identification information of the manufacturer to the entry or modification, and determine whether it is possible to read data using the information of the manufacturer that supports a specific manufacturer, based on whether the identification information of the manufacturer, recorded on the recording medium, which identifies the manufacturer, altering the last recording medium, identification information of the manufacturer of the recording and reproducing device.

26. The method according A.25, in which the recording medium contains information model code indicating the model of the device that modified the data of the recording medium on the recording medium, the method further comprises a step in which reads the model code of the playback device and determine whether to read data, based on whether the read code model information model code.

27. The method according A.25, in which the recording medium contains an operation code that indicates information about transactions carried out by a recording device that modifies the data of the recording media, the method further comprises the following steps: read operation code and is defined as the modified data based on the read code of the operation.

28. The method according to p in which the recording media stergiadis the manufacturer's information specific to the manufacturer, the method further comprises a step, in which the read manufacturer code and determine whether or not to read a piece of information of the manufacturer, if the manufacturer code coincides with the code related to the manufacturer of the playback device.

29. The method according to p in which the recording medium contains unit information manufacturer specific to manufacturer and model code indicating the model of the recording device, the method further comprises a step, in which the read manufacturer code and the model code and determine whether or not to read a piece of information of the manufacturer, if the manufacturer code coincides with the code related to the manufacturer of the playback device, and the model code coincides with the code related to the model of the playback device.

30. The method according to clause 29, in which the recording medium contains the time information indicating the time when the recorded information unit manufacturer on the recording medium, the method further comprises a step, in which the read information about the time and process the read time information.

31. The method according to p in which the recording medium includes a search pointer indicating the start address of the information unit of the manufacturer, the method further comprises a step, in which icyhot search index and then read the information unit manufacturer at the initial address specified unit information of the manufacturer.

32. The method according to p. 25, which further comprises a step, which determines whether the read identification information manufacturer ID the manufacturer of the current playback device relating to the manufacturer of the playback device reads the data for playback, if the above match to playback the data, read the data, if not specified, matches to review the data and perform data reproduction, if there is a match or if the results of the analysis indicate that the data is reproducible by a playback device.

33. The method according A.25, in which identification information of the manufacturer complies with the manufacturer of the recording device, which last modified the data of the recording media.

34. How to play data from a rewritable recording media, containing rich information having the common format for manufacturers, and specific information of the manufacturer, which has a unique format, the recording/reproducing device using the information of the manufacturer to maintain specific functions manufactured is vitela, which was recorded on the recording media containing the following steps: verify that the identification information of the manufacturer of the device, recorded or modified on the recording medium, which identifies the manufacturer, altering the last recording medium, identification information of the manufacturer of the recording and reproducing device to determine whether the specific information of the manufacturer of the recording and reproducing device is valid, when the identification information of the manufacturer, recorded on a medium is different from the identification information to the entry or modification.

35. The method according to clause 34, which further comprises a step of verification of conformity identification of the model code of a device that modified the data of the recording medium, and the identification code of the model recording/reproducing device to determine whether the specific information of the manufacturer of the recording/reproducing device is valid.

Priority items:

22.06.1998 according to claims 1-16, 18, 20-35;

29.07.1998 on PP, 19.



 

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2 cl, 7 dwg

FIELD: optical data carriers.

SUBSTANCE: for protecting optical disk from recording, information concerning protection from recording is read, which is previously recorded in at least one zone of starting or ending area of data carrier, and it is determined, whether the latter is in state of recording protection. In variant, when carrier is placed in cassette body, and body has aperture for forbidding recording protection of data on disk, it is determined, if recording protection state of recording protection data written on disk is matches with state of recording protection of said aperture, and recording of new data is prevented, if said protection data and aperture position forbid recording. In a variant information concerning recording protection is stored in zones of disk identification of at least one of zones of starting and ending area of carrier.

EFFECT: higher efficiency.

5 cl, 16 dwg

The invention relates to a system for recording and/or playback in real-time the real-time files

FIELD: stereophonic signals recording/reproduction.

SUBSTANCE: data signal has first portion and remainder portion. Said first portion is combined with stereophonic signal for receiving compound signal, recorded in said first channel on said data carrier. Remainder portion is recorded in second channel on said data carrier.

EFFECT: higher data carrier capacity.

4 cl, 6 dwg

FIELD: protection of video information against unauthorized copying.

SUBSTANCE: proposed method using watermarks to protect video information against unauthorized copying by changing scale of pattern in the course of copying includes introduction of watermark in original video signal with different scales. Watermark is maintained in each scale for preset time interval sufficient to enable detector circuit in digital-format video recorder to detect, extract, and process information contained in watermark. Watermark scale is changed by end of preset time interval preferably on pseudorandom basis to ensure appearance of each of all scales in predetermined scale variation range as many times as determined in advance. In this way definite scale possessing ability of watermark recovery to initial position and size can be identified and used for watermark detection.

EFFECT: enhanced reliability, facilitated procedure.

24 cl, 7 dwg

FIELD: data carriers.

SUBSTANCE: in response to control reading signal received at amplifier input, on output of this amplifier output signal is produced, signal is then formed, reflecting difference between output amplifier signal and support signal. First compensation signal is generated, absolute value of which is proportional to absolute temperature, and second compensation signal, absolute value of which does not depend on temperature during forming estimation signal first compensation signal is summed with signal, reflecting said difference, or is subtracted from it dependently on second compensation signal.

EFFECT: higher precision.

4 cl, 7 dwg

The invention relates to a method of recording, the control method and device for recording

The invention relates to the accumulation of information, in particular to a system for recording on an optical disk such as CD-ROM

The invention relates to encoding and decoding of audio signals and can be used in the transmission systems of audio data

The invention relates to the conversion of binary sequences transmitted by the recording channel storage devices or optical communication subsystems

The invention relates to the job identification sound channel
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