WO2004110067A1 - Dispositifs et procedes pour traiter un flux de donnees mpeg-2 - Google Patents

Dispositifs et procedes pour traiter un flux de donnees mpeg-2 Download PDF

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Publication number
WO2004110067A1
WO2004110067A1 PCT/DE2004/000927 DE2004000927W WO2004110067A1 WO 2004110067 A1 WO2004110067 A1 WO 2004110067A1 DE 2004000927 W DE2004000927 W DE 2004000927W WO 2004110067 A1 WO2004110067 A1 WO 2004110067A1
Authority
WO
WIPO (PCT)
Prior art keywords
stream
mpeg
streams
program
sub
Prior art date
Application number
PCT/DE2004/000927
Other languages
German (de)
English (en)
Inventor
Edmund Gossner
Original Assignee
Fujitsu Siemens Computers Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Siemens Computers Gmbh filed Critical Fujitsu Siemens Computers Gmbh
Publication of WO2004110067A1 publication Critical patent/WO2004110067A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/4147—PVR [Personal Video Recorder]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334—Recording operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4341—Demultiplexing of audio and video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4344—Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4347—Demultiplexing of several video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording

Definitions

  • the invention relates to a device for processing an MPEG-2 data stream and a device for processing an MPEG-2 program stream.
  • the invention further relates to a method for processing an MPEG-2 data stream.
  • Digital television uses an MPEG-2 data stream to transmit the television signal.
  • This data stream is transmitted in the so-called transport stream format.
  • the image or sound data is first converted into partial data streams and these are then combined into an MPEG-2 transport stream and then sent from a transmitting station in packets of 188 bytes each to a receiving station.
  • the receiving station extracts from the received MPEG-2
  • Transport stream the individual video or associated audio streams. It is possible to assign several audio streams to a video stream in order to be able to see or hear a film in several languages, for example.
  • An MPEG-2 transport stream for a DVB signal thus contains several video sub-streams and sub-streams assigned to them, mostly audio data streams.
  • the known DVB receivers extract a video stream from the MPEG-2 transport stream and the associated audio streams and pass on the selected video stream and a selected audio stream.
  • the two streams are decoded and output.
  • These facilities commonly referred to as video recorders, therefore approximate the currently selected video or audio signal. If, however, several partial streams are assigned to the video signal within the MPEG-2 transport stream of the DVB signal, all unselected partial data streams are omitted during storage.
  • the user of such a video recorder can therefore no longer make a selection at a later point in time when playing back the stored data stream with regard to the partial streams assigned to the video stream. It is therefore limited to the partial data stream selected during the storage process.
  • the object of the present invention is therefore to provide devices with which the disadvantage described above is overcome.
  • a device for processing an MPEG-2 data stream which has a receiving unit and a first unit for dividing the received MPEG-2 data stream into individual partial streams.
  • the arrangement also contains a transformation device, by means of which at least one of the individual partial streams of the first unit can be transformed into an MPEG-2 program stream and can be stored in a storage unit.
  • the MPEG-2 program stream is designed as an MPEG-2 data stream in the so-called program stream format.
  • a device for processing an MPEG-2 program stream has a storage unit which contains an MPEG-2 program stream, a reading device for reading the storage unit and a second unit for decomposing the MPEG-2 program stream supplied by the reading unit into the individual partial data streams on.
  • the second facility also has ner a decoding device for decoding the individual partial data streams.
  • the MPEG-2 program stream is designed as an MPEG-2 data stream in the program stream format.
  • a combination of both devices is characterized in that they are connected to one another by the storage unit. This combination of the devices enables individual sub-streams of a received MPEG-2 data stream to be combined and output in an MPEG-2 program stream.
  • the received MPEG-2 data stream is designed as a DVB signal.
  • the received MPEG-2 data stream can advantageously be formed in the MPEG-2 transport stream format.
  • the received MPEG-2 data stream has at least one partial stream formed as a video stream and partial streams assigned to this video stream.
  • the received MPEG-2 data stream has a partial stream formed as an audio stream and partial streams associated with this audio stream.
  • the received MPEG-2 data stream thus has at least one sub-stream and further sub-streams assigned to it.
  • the MPEG-2 program stream stored in the storage unit has the at least one partial data stream designed as a video or audio data stream and all the partial data streams associated with it, as well as descriptions of the partial data streams contained in the MPEG-2 program stream.
  • the descriptions are added to the MPEG-2 program stream by the transformer during conversion.
  • the descriptions stored in the program stream can be found in the received MPEG-2 data stream.
  • the removal follows through the first device for splitting or alternatively a further device which searches the received MPEG-2 data stream before splitting it into partial streams for the descriptions.
  • the descriptions extracted in this way contain information about the partial streams of the received MPEG-2 data stream and are fed to the transformation device.
  • the descriptions within the MPEG-2 program stream are stored as PSM tables.
  • the second unit for disassembling determines from the descriptions, preferably from the PSM tables, the information required to generate at least one partial data stream in the MPEG-2 program stream supplied by the reading device.
  • the reading device can have a device which takes the descriptions from the read MPEG-2 program stream. If necessary, selected partial data streams can be generated by supplying information to the second unit for disassembling.
  • sub-streams associated with a sub-stream designed as a video stream have or are audio streams.
  • a video stream and the associated sub-streams can thus be extracted from a received MPEG-2 data stream, transformed into an MPEG-2 program stream and stored in the storage unit.
  • the video data stream and all sub-data streams assigned to it can be called up from the stored MPEG-2 program stream. Due to the description of the partial data streams contained in the MPEG-2 program stream, individual partial data streams can be selected by one device. It is also advantageous to provide a circuit in the first device for processing an MPEG-2 data stream, by means of which a selection of the received and decomposed partial streams in the MPEG-2 program stream generated by the transformation device can be controlled. This allows a pre-selection of the partial streams contained in the MPEG-2 program stream.
  • the first or second unit for disassembling the first or second device for processing an MPEG-2 data stream has a demultiplexer which is designed as software or as hardware.
  • Another advantageous embodiment of the invention is the design of the storage unit as a hard disk storage.
  • the MPEG-2 program stream stored in the storage unit consists of several sub-program streams.
  • the individual partial program streams can be removed from the storage unit after reading by the reading unit.
  • the reading unit can also feed the stored MPEG-2 program stream to the second unit for disassembly at different times.
  • the stored MPEG-2 program stream can also be played back at a later point in time and in particular also when the selected program is still being received.
  • a received MPEG-2 data stream which has individual sub-streams, at least one sub-stream having sub-streams associated therewith, is broken down into its individual sub-streams.
  • descriptions of the sub-streams are taken from the received data stream.
  • a selected sub-stream and all the sub-streams assigned to it are converted with description into an MPEG-2 data stream which is designed in the MPEG-2 program stream format, the MPEG-2 program stream being the selected sub-stream and the selected sub-stream. ordered sub-streams, as well as a description of each sub-stream.
  • the MPEG-2 program stream is stored in a storage unit.
  • the MPEG-2 program stream stored in a storage unit is read and broken down into its individual partial data streams. Selected partial data streams are sent for further processing. With this method, a partial stream of a received MPEG-2 data stream with all of its associated partial streams can be stored and read again at a later point in time. A selection of individual partial data streams remains.
  • the method is particularly suitable for DVB signals that are in MPEG-2 transport stream format and have several sub-streams with their associated descriptions.
  • the descriptions stored in the program stream are expediently formed as PSM tables.
  • FIG. 1 shows a block diagram of the invention
  • FIG. 2 shows a transformation device for generating an MPEG-2 program stream
  • FIG. 3 shows two exemplary embodiments of an MPEG-2 program stream stored in the memory unit
  • FIG. 4 shows a first application example
  • Figure 5 shows a second application example of the invention.
  • FIG. 1 shows an embodiment of the invention.
  • a receiving unit A is connected to a device DM1 for dividing the received data stream into individual sub-streams.
  • the individual partial streams VSl, ASl, AS2 and ASn are fed to a transformation device TE, which is connected to a writing device SE.
  • the writing device SE writes the data received from the transformation device TE into a storage unit SP.
  • the receiving device A receives a DVB signal and demodulates it.
  • the DVB signal contains an MPEG-2 transport stream.
  • This MPEG-2 transport stream is fed to the device DM1 for disassembly.
  • the device DM1 has a demultiplexer which divides the received transport stream TS into its individual sub-streams VS1, AS1, AS2 and ASn.
  • the MPEG-2 transport stream is available in individual packets of 188 bytes each. Each of these packets contains 4 bytes of header information and 184 bytes, which are part of so-called PES packets (Packetised elementary streams). Each individual PES packet, which is of variable length, contains the actual partial data streams, as well as various header information and, in particular, necessary time information for decoding and output. Therefore, in order to receive a complete PES packet, several packets of the transport stream TS are necessary.
  • any number of partial data streams are possible within an MPEG-2 transport stream.
  • these partial streams correspond to the individual video signals of the various digital television programs.
  • Each individual television program contains a video component and an audio component.
  • the video portion or audio portion is encoded in a partial stream. Therefore, each video stream of an MPEG-2 Transport stream normally assigned at least one audio stream.
  • the device DM1 evaluates the PSI (program specific information) -
  • Transport packages which include the tables PMT and PAT.
  • the PAT table contains a list of all programs and refers to a PMT table assigned to the respective program. This table describes the sub-streams that belong to the program and also contains user information such as speech in an audio stream or the quality of the audio stream.
  • the device DM1 forwards a video stream VS1 and the associated audio streams AS1, AS2 to ASn to the transformation device TE.
  • the device DM1 takes the information belonging to the respective video or audio streams VS1, ASl, AS2 to ASn from the PAT and PMT tables and also passes this on to the transformation device TE.
  • the transformation device TE is shown by way of example in FIG. 2. It has a video input VE1, to which the video stream VS1 of the device DM1 is fed. It also has five audio inputs AE1 to AE5, to which the audio streams AS1 to AS5 assigned to the video stream VS1 are fed. In addition, it has an input for the information from the PMT or PAT tables. The transformation device TE uses this to generate a program stream PS and outputs it at its output PSO.
  • the transformation device TE extracts the necessary information from the individual partial streams VSl, ASl to ASn. In particular, the headers of the individual partial streams and the time stamps are evaluated. The partial streams are then multiplexed and output as an MPEG-2 program stream. Furthermore the transformation device TE generates a PSM table (program stream map) from the information in the PMT and PAT tables that were transferred to it by the device DM1. This PSM table contains the description of the individual sub-streams of the MPEG-2 program stream. This is necessary because a partial stream supplied to the transformation device TE does not contain any information relating to the stream such as quality, language, etc. contains.
  • the PSM table is periodically added to the program stream in order to make changes in the sub-streams clear if necessary.
  • the program stream PS generated in this way is written into the memory device SP by means of the writing unit SE in FIG.
  • the storage device SP is designed as a hard disk.
  • the storage device SP is connected to a reading unit.
  • Program stream is connected to the reading unit LE and a decoding device DEK.
  • the decoder DEK is connected to two output devices TV and AV.
  • the program stream PS stored in the storage device SP is read by a reading unit LE which accesses the storage unit SP and is fed to the second device DM2 for breaking it down into individual partial data streams.
  • the device DM2 has a demultiplexer, which extracts a video data stream VS2 and an audio data stream AS2 from the supplied program stream PS. For this purpose, the DM2 device evaluates the PSM tables contained in the program stream.
  • the information contained therein is passed on to the user, who makes a selection of the partial data streams which are to be extracted from the program stream PS.
  • the currents VS2 and AS2 thus extracted are fed to the decoding device DEK, which converts them into the actual image or audio information.
  • the image information is displayed on a TV screen, the audio information is forwarded to a loudspeaker AV.
  • the storage unit SP can alternatively also be designed with other storage media as hard disk storage. Examples of this are magnetic tapes, RAM memories or holographic memory systems.
  • FIG. 3 shows two exemplary embodiments of a stored MPEG-2 program stream in a storage device SP.
  • the MPEG-2 program stream consists of a single file PSF. This is stored in the memory of the storage unit SP. There is a time difference between the reading position LP of the reading unit LE and the writing position SRP of the writing unit SE. The stored MPEG-2 program stream PS is thus already being considered while it is still being written into the storage unit SP.
  • the PSF file uses almost all of the available files
  • the program stream PS is divided into different sub-program streams. These are labeled “TsFile_l .mpg” to “TsFile_10.mpg”. Since the current reading position LP is in the partial program stream "TsFile_6.mpg”, it is possible to delete the files "TsFile_l .mpg” to "TsFile_5.mpg” that have already been read from the memory unit SP. With this "first in-first out” "Strategy, an endless playback of a transport stream converted into a program stream is possible even with limited storage space.
  • FIG. 1 can therefore be used both as a DVB video recorder for recording a DVB program and as a normal DVB receiver.
  • the possibility for a user to select a partial stream assigned to a video stream from an MPEG-2 transport stream is shown in FIG. 4 or FIG. 5 for the application of an immediate view or a time-shifted view of the received signal.
  • the received DVB signal is processed directly and output without intermediate storage on the screen TV and the loudspeaker AV.
  • the receiving device A receives a DVB signal, demodulates it and sends the MPEG-2 transport stream contained therein by the device DM1.
  • the device DM1 extracts the PSI packets and the PAT and PMT tables contained therein. These are forwarded by the device DM1 to a control logic SL via the line TI.
  • the control logic SL evaluates the information contained in the tables PAT and PMT and displays this to a user via a selection list AL. User U can select a partial flow from this list. Furthermore, the user U determines a priority list PL, which is also evaluated by the control logic SL. After a manual selection by the user or a selection from the priority list PL, the control logic sends an identification code SI to the device DM1.
  • This identification code SI is used by the device DM1 to select the desired video stream VSl and the associated desired audio stream ASl from the multiplexed transport stream TS. These currents are fed to the decoding device DEK, which decodes them into the corresponding picture or sound information.
  • FIG. 5 shows the application in which a program stream is generated from a received MPEG-2 transport stream and is stored in a storage device.
  • the device DM1 extracts the PAT or PMT table from the PSI packets of the MPEG-2 transport stream and feeds this to a control logic SL.
  • the control logic uses a priority list to select a video stream with the sub-streams assigned to it. This selection is sent back to the device DM1, which extracts the selected partial streams from the transport stream and feeds them to the transformation device TE.
  • the control logic SL transfers the information contained in the PMT and PAT tables of the selected partial streams to the transformation device TE.
  • the transformation device TE multiplexes the sub-streams VSl, ASl and ASn and generates an MPEG-2 program stream from them.
  • the transformation device generates PSM tables from the information received from the control logic and inserts them into the MPEG-2 program stream PS.
  • the writing unit SE stores the generated program stream PS in the storage unit SP.
  • a reading unit LES is connected to the storage unit SP, to the control logic SL and to the second device DM2.
  • the reading unit reads the stored program stream PS and searches for the PSM tables contained in the MPEG-2 program stream PS. If a table is recognized, it is fed to the control logic SL via TI.
  • the control logic SL uses this to generate a selection list AL of the various partial data streams contained in the MPEG-2 program stream PS or selects a selection from a priority list PL.
  • a user U can manually select from the selection list AL or determine the priority list PL.
  • the control logic SL communicates the selection information SI to the device DM2.
  • the device DM2 demultiplexes the program stream PS and uses the selection information SI in this example to extract a video data stream VS2 and an associated audio data stream AS2.
  • the partial data streams extracted in this way are fed to the decoding device DEK.
  • DEK decoding device
  • the transformation device can be designed as software or hardware and thus convert any number of partial data streams, in particular audio data streams, with a video data stream into a program stream.
  • DVB signals In addition to the evaluation of DVB signals, it is also conceivable to use the arrangement according to the invention and the method in digital radio in order to store a received radio program which has several partial data streams.
  • the different partial data streams can have different quality, for example DTS, AC3 or stereo.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

L'invention concerne un dispositif (E1) pour traiter un flux de données MPEG-2. Ce dispositif (E1) comprend une unité de réception (A) et une première unité (DM1) pour décomposer le flux de données MPEG-2 reçu en flux partiels individuels (VS1, AS1), ces derniers comprenant au moins un flux de données vidéo. Ledit dispositif (E1) comprend par ailleurs une unité de transformation (TE) et une mémoire (SP), au moins le ou les flux de données vidéo issus de la première unité (DM1) de décomposition pouvant être transformés par l'unité de transformation (TE) en un flux de programme MPEG-2 et stockés dans la mémoire (SP). Ce flux de programme MPEG-2 est un flux de données MPEG-2 au format de flux de programme. De préférence, le flux de programme stocké dans la mémoire (SP) peut être lu et traité par un deuxième dispositif (E2).
PCT/DE2004/000927 2003-05-22 2004-05-03 Dispositifs et procedes pour traiter un flux de donnees mpeg-2 WO2004110067A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10323186.2 2003-05-22
DE2003123186 DE10323186B4 (de) 2003-05-22 2003-05-22 Einrichtungen zur Verarbeitung eines MPEG-2-Datenstroms und Verfahren zur Verarbeitung eines MPEG-2 Datenstroms

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WO2004110067A1 true WO2004110067A1 (fr) 2004-12-16

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Citations (5)

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Publication number Priority date Publication date Assignee Title
EP0727780A2 (fr) * 1995-02-16 1996-08-21 Kabushiki Kaisha Toshiba Système de commande de sortie pour des canaux audio commutables
US5881203A (en) * 1995-08-02 1999-03-09 Sony Corporation Data recording method and apparatus data record medium and data reproducing method and apparatus
WO2000016548A1 (fr) * 1998-09-17 2000-03-23 United Video Properties, Inc. Guide electronique de programme a stockage numerique
US20020136406A1 (en) * 2001-03-20 2002-09-26 Jeremy Fitzhardinge System and method for efficiently storing and processing multimedia content
WO2003019932A1 (fr) * 2001-08-22 2003-03-06 Tivo Inc. Systeme de traitement de signaux multimedia

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KR100230282B1 (ko) * 1997-04-14 1999-11-15 윤종용 단일 프로그램 전송 스트림 전송장치 및 그 방법
US6502243B1 (en) * 1998-11-10 2002-12-31 Lgerca, Inc. Method and system for locating a resource within a broadcasting environment
GB9930788D0 (en) * 1999-12-30 2000-02-16 Koninkl Philips Electronics Nv Method and apparatus for converting data streams
AU2001273897A1 (en) * 2000-03-23 2001-10-03 Thomson Multimedia A system and a process for reconstructing programs from an input transport stream and a corresponding digital receiver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0727780A2 (fr) * 1995-02-16 1996-08-21 Kabushiki Kaisha Toshiba Système de commande de sortie pour des canaux audio commutables
US5881203A (en) * 1995-08-02 1999-03-09 Sony Corporation Data recording method and apparatus data record medium and data reproducing method and apparatus
WO2000016548A1 (fr) * 1998-09-17 2000-03-23 United Video Properties, Inc. Guide electronique de programme a stockage numerique
US20020136406A1 (en) * 2001-03-20 2002-09-26 Jeremy Fitzhardinge System and method for efficiently storing and processing multimedia content
WO2003019932A1 (fr) * 2001-08-22 2003-03-06 Tivo Inc. Systeme de traitement de signaux multimedia

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DE10323186B4 (de) 2006-03-02

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