RussianPatents.com

Method of interactive television transmission. RU patent 2325782.

FIELD: technological processes.

SUBSTANCE: invention is related to interactive television and, in particular, to recording content of interactive television. Method is suggested how to transmit interactive television, at that applications of interactive television are transmitted in modules of applied programs that are transmitted in broadcasting flow, besides, information, which is related to memorizing of mentioned modules, is transmitted in the form of signaling in broadcasting flow. Information of module identification is realized in Information table of applications (ITA) and/or in message of Loading information indicator (LII). This information is included in broadcasting flow, which belongs to categories that indicate whether applied programs modules are obligatory, optional for recording or their recording is prohibited. Alternative properties of module are selected from the following: Code module /Data module /both modules, and/or Fixed module /Changed module. Recording systems use this information to decide whether it is required to record these modules of applied programs or not, besides, module identification number is used to exclude repeated records, besides, modules of applied programs of one and the same category are preferably grouped together.

EFFECT: using of minimum memory volume for recording applications on this data carrier.

17 cl, 6 dwg

IPC classes for russian patent Method of interactive television transmission. RU patent 2325782. (RU 2325782):

H04N7/16 - Analogue secrecy systems; Analogue subscription systems

H04N5/91 - Television signal processing therefor (of colour signals H04N0009790000)

Another patents in same IPC classes:

Mpeg-table structure / 2321965
In accordance to the invention, transport data stream is claimed for transmission through a communication channel, receipt and processing by receiver-decoder, which contains a table which contains header (400) and informational part, featuring the informational part of the table having descriptors (406), corresponding to first cycle (408) of descriptors, and variable length cycle (410) with data elements (412), each one of which includes a data element identifier and cycle (414) of descriptors, containing descriptors (416) which are unique for given data element (412), where informational part of the table includes second header (404) and second informational part, and aforementioned second header (404) includes at least one of the following: information which concerns compression of given table; information which concerns encryption of given table; information which concerns priority; information which concerns the format of syntactical analysis; a filter expansion field.

Paid television system with advance payment / 2316136
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.

Method for controlling access privileges for encrypted data stored in a digital recorder / 2316135
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.

Device and method for processing texts in digital broadcasting receiver / 2316134
Digital broadcasting receiver features text extraction module, text processing module, module for storing extracted text information and module for keyword searching. User may efficiently receive precise and summed up information from digital video broadcasting, using capabilities of storage, transformation and searching for text information, and computer or different mobile terminals may use text content of broadcasting program.

Method for protected storage of encrypted data on personal digital recorder / 2315440
Method for recording content, encrypted with control words (CW) in module of receiving device/decoder (STB), connected to protection module (SC), wherein aforementioned control words (CW) in the same manner as privileges, required for access to aforementioned content, are transferred by means of control messages (ECM, EMM), where aforementioned control messages are encrypted by means of system keys (TK, RK), and aforementioned system keys are used jointly by a set of modules of receiving devices/decoders (STB), includes following stages: encrypted content is saved together with control messages (ECM, EMM) in memory device; system keys (TK, RK) are encrypted locally by means of a predetermined local key (S1), located in protection module (SC); system keys (SK) are saved in memory device in encrypted form after their encryption with aforementioned local key (S1).

Method for integrating reference identifiers of tv-anytime content / 2314655
In accordance to the invention, during creation a stream of sound/video information, multiplexing is used for video information component, sound information component, and at least one reference identifier of content, where reference identifier of content is connected to video information component and sound information component in MPEG transmission stream. Also, device is described for realization of aforementioned method for transmitting and receiving a stream of sound/video information, containing TV-Anytime CRID.

Digital content distribution system / 2308079
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.

System and method for identification of web-camera / 2307476
System uses web-camera, client computer and server web-site. In web-camera, authentication password and video-communication application are stored. Server web-site has authentication module for identification of web-camera and a functional module. After the client computer installs video application, provided by web-camera, web-camera may connect to server web-site through client computer. Server web-site authenticates possible usage of web-camera by checking authentication password. After passage of authentication web-camera may receive services provided by functional module.

Method for efficient recording of object carousels / 2305913
Data transmission system contains transmitter 10 and, at least, one receiver 14, configured for receiving signals, transmitted by transmitter. Data file objects and catalogue objects, creating the carousel, are transmitted with periodical repeating in predetermined groups of file and catalogue objects, made into appropriate modules in the transmitter, according to MPEG-2 DSM-CC protocols. Each module is transmitted as a whole, and receiver is composed in such a way, that it is possible to record received objects of file data and catalogue objects with predetermined variant of grouping on the level of elementary streams and the level of modules.

Method and system for conditional access / 2302706
User terminal (3) is used for decoding various services of paid television system, while access to aforementioned user terminal (3) is provided by means of virtual card, which is loaded through distribution network (4) by means of additional data stream (18) from system block (17) and received by user terminal (3).

Method for conversion of mpv multimedia set to dvd video format / 2319315
In the method, multimedia information set, recorded in MPV format, is read, then recorded in random-access memory of computer, opening is performed, content file of aforementioned multimedia set is disassembled and links to each fragment of multimedia set are extracted, extracted links are recorded in XML format file of random-access memory, from resulting XML format file all elements of file type are selected, which are used to build a list of links to fragments of multimedia set to create DVD menu, fragments of multimedia information set are transformed to MPEG-2 format, on basis of formed list of links, DVD navigation information is generated and DVD disk image file is created, which is used for recording onto machine-readable carrier of transformed multimedia information in DVD format.

System for creating data on moving images, method of data creation on moving images, program for data creation on moving objects and carrier for data recording / 2295780
System for creating data on moving images has developing aid which serves for film development presented to consumer, reading-out device which serves for reading data out on multiplicity of motionless images received from developed film, aid for creating difference data for data on any image from multiplicity of motionless images. Mentioned difference data have to be difference between data on specific number of motionless images. Mentioned number of images is calculated on base of preset time of representation of single image. Device also has recording aid used for recording data on moving images, of data on motionless images, program for showing slides and musical data on carrier for data recording. Described system provides easy demonstration of photographic image onto screen of domestic device for reproduction of moving images.

Digital photo-camera, method for controlling the same and printing system / 2292661
In accordance to method, digital camera is provided, which may quickly perform authentication procedure, when it is ready for direct connection to printer and may serve as user interface device in direct printing system. When digital camera is ready for direct connection to printer and receives request from printer about objects, stored in camera, it assigns object, which contains word, serving as authentication information of objects, stored in camera, for first descriptor, assigns other objects (image data, etc) to other descriptors and sends result of assignment to printer.

Method for presenting marked document according to initial level, method and device for marked document playback in interactive mode / 2292091
Among the marked documents the starting document contains information about marked document for presentation in accordance to defined initial level.

Printing device, method for control and printing system / 2289842
On the early stage of connection between digital camera and direct print printer, direct print printer asks for an object, which contains password as information for objects recognition, which are recorded an stored in digital camera. As a result, after it is known that returned information contains recognition information, printer informs digital camera about its own recognition information.

Method and device for command transfer / 2285352
In accordance to method, watermark is formed, containing inbuilt control command, which should be executed by device being controlled, control command being related to representation of advertisement, signal is generated, containing watermark, inbuilt in information block represented by it and transferred into device being controlled, generated signal is transferred with watermark into device being controlled for showing advertisement to user by executing control command, related to showing advertisement, user is questioned to determine his preferences and on basis of questioning user profile is generated with consideration of sales data for devices being controlled, product identification is added to control command, while control command contains value of parameter, specific for advertisement, while device being controlled receives advertisement, wherein parameter values are used.

Method for determining movement vectors in direct prediction mode / 2282948
In the method in process of encoding/decoding of each block of B-frame in direct prediction mode movement vectors are determined, using movement vector of shifted block in given frame, utilized for encoding/decoding B-frame, and, if type of given frame is time-wise remote supporting frame, one of movement vectors, subject to determining, is taken equal to movement vector of shifted block, while another one of movement vectors, subject to determining, is taken equal to 0.

Method for determining movement vector of current block in direct prediction mode / 2282947
Method includes receiving index of supporting frame, standing for supporting frame, pointed at by other block, providing movement vector for determining movement vector of current block, and determining movement vector of current block with utilization of supporting frame index, denoting a supporting frame.

Data carrier, data production device, data storage device, data production method and data storage method / 2267233
Data production device has module for assigning numeric value, meant for assigning from number of multiple numeric values, stored on data carrier, of numeric value, appropriate for data file, subject for extraction, while numeric value is additional basic n value, where n - integer value higher than one. Device also has module for forming path name, meant for forming name by insertion of symbol, appropriate for numeric value, into each preset position in given formed symbols string, and receiving module, meant for extraction of data file, if in data carrier additional file is present with path name, formed by path name forming module.

Method and device for recording and reproducing video data and data carrier, on which video data are recorded using said method and device / 2266625
Prior to recording on data carrier, video data, primarily encoded by main method, are decoded and information about video data properties is extracted, decoded video data are encoded by method, different from original method and video transformation information is produced, which should be used for displaying video data in original state on basis of information about properties, and generated video transformation information is recorded together with recoded video data on data carrier.

Method for inserting additional data into a signal / 2249308
Additional data are encoded in relative position or phase of one or more water signs, which allows insertion of multi-bit data, while using only one or several certain water signs.