WO2005020559A3 - Method and system for time synchronized forwarding of ancillary information in stream processed mpeg-2 systems streams - Google Patents

Method and system for time synchronized forwarding of ancillary information in stream processed mpeg-2 systems streams Download PDF

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Publication number
WO2005020559A3
WO2005020559A3 PCT/US2004/026125 US2004026125W WO2005020559A3 WO 2005020559 A3 WO2005020559 A3 WO 2005020559A3 US 2004026125 W US2004026125 W US 2004026125W WO 2005020559 A3 WO2005020559 A3 WO 2005020559A3
Authority
WO
WIPO (PCT)
Prior art keywords
elementary stream
information
stream
systems layer
modified sequence
Prior art date
Application number
PCT/US2004/026125
Other languages
French (fr)
Other versions
WO2005020559A2 (en
Inventor
Jeyendran Balakrishnan
Hemant Malhotra
Original Assignee
Skystream Networks Inc
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
Priority claimed from US10/640,866 external-priority patent/US7227899B2/en
Priority claimed from US10/641,322 external-priority patent/US7274742B2/en
Priority claimed from US10/640,872 external-priority patent/US7342968B2/en
Priority claimed from US10/640,871 external-priority patent/US7693222B2/en
Priority claimed from US10/641,323 external-priority patent/US20050036557A1/en
Application filed by Skystream Networks Inc filed Critical Skystream Networks Inc
Priority to CA002535306A priority Critical patent/CA2535306A1/en
Publication of WO2005020559A2 publication Critical patent/WO2005020559A2/en
Publication of WO2005020559A3 publication Critical patent/WO2005020559A3/en

Links

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]
    • H04N21/20—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
    • H04N21/2365—Multiplexing of several video streams
    • H04N21/23655—Statistical multiplexing, e.g. by controlling the encoder to alter its bitrate to optimize the bandwidth utilization
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • 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
    • H04N21/2368—Multiplexing 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]
    • H04N21/20—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
    • H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]

Abstract

A method and system are provided for processing an elementary stream in a systems layer stream that is presumed to be ultimately consumed according a to predefined and deterministic schedule relative to a particular system time clock of a program that comprises the elementary stream. First and second synchronization points are identified in an elementary stream. The elementary stream is processed to produce a modified sequence of elementary stream information to be carried between the first and second synchronization points. The modified sequence has a different amount of information than the particular sequence of information. A series of one or more new systems layer stream segments carrying the first synchronization point, as well as the modified sequence of elementary stream information, are inserted into a new systems layer steam. At least one of the new systems layer steam segments comprises a systems layer information sub-segment containing the particular ancillary data. Each synchronization point is a type of sequential location of the elementary stream: (1) which recurs continually throughout the elementary stream; (2) is synchronized in time to the systems time clock of the program containing the elementary stream; and (3) is always present in an elementary stream both prior to, and after, the processing.
PCT/US2004/026125 2003-08-13 2004-08-12 Method and system for time synchronized forwarding of ancillary information in stream processed mpeg-2 systems streams WO2005020559A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002535306A CA2535306A1 (en) 2003-08-13 2004-08-12 Method and system for time synchronized forwarding of ancillary information in stream processed mpeg-2 systems streams

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US10/640,866 US7227899B2 (en) 2003-08-13 2003-08-13 Method and system for re-multiplexing of content-modified MPEG-2 transport streams using interpolation of packet arrival times
US10/641,322 US7274742B2 (en) 2003-08-13 2003-08-13 Model and model update technique in a system for modeling the relationship of the bit rate of a transport stream and the bit rate of an elementary stream carried therein
US10/641,322 2003-08-13
US10/640,866 2003-08-13
US10/640,872 2003-08-13
US10/641,323 2003-08-13
US10/640,872 US7342968B2 (en) 2003-08-13 2003-08-13 Method and system for modeling the relationship of the bit rate of a transport stream and the bit rate of an elementary stream carried therein
US10/640,871 US7693222B2 (en) 2003-08-13 2003-08-13 Method and system for re-multiplexing of content-modified MPEG-2 transport streams using PCR interpolation
US10/640,871 2003-08-13
US10/641,323 US20050036557A1 (en) 2003-08-13 2003-08-13 Method and system for time synchronized forwarding of ancillary information in stream processed MPEG-2 systems streams

Publications (2)

Publication Number Publication Date
WO2005020559A2 WO2005020559A2 (en) 2005-03-03
WO2005020559A3 true WO2005020559A3 (en) 2007-01-25

Family

ID=34222664

Family Applications (4)

Application Number Title Priority Date Filing Date
PCT/US2004/026082 WO2005020557A2 (en) 2003-08-13 2004-08-12 Method and system for modeling the relationship of the bit of a transport stream and the bit rate of an elementary stream carried therein
PCT/US2004/026164 WO2005019999A2 (en) 2003-08-13 2004-08-12 Method and system for re-multiplexing of content-modified mpeg-2 transport streams using pcr interpolation
PCT/US2004/026125 WO2005020559A2 (en) 2003-08-13 2004-08-12 Method and system for time synchronized forwarding of ancillary information in stream processed mpeg-2 systems streams
PCT/US2004/026124 WO2005020558A2 (en) 2003-08-13 2004-08-12 Method and system for re-multiplexing of content-modified mpeg-2 transport streams using interpolation of packet arrival times

Family Applications Before (2)

Application Number Title Priority Date Filing Date
PCT/US2004/026082 WO2005020557A2 (en) 2003-08-13 2004-08-12 Method and system for modeling the relationship of the bit of a transport stream and the bit rate of an elementary stream carried therein
PCT/US2004/026164 WO2005019999A2 (en) 2003-08-13 2004-08-12 Method and system for re-multiplexing of content-modified mpeg-2 transport streams using pcr interpolation

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2004/026124 WO2005020558A2 (en) 2003-08-13 2004-08-12 Method and system for re-multiplexing of content-modified mpeg-2 transport streams using interpolation of packet arrival times

Country Status (2)

Country Link
CA (4) CA2535457C (en)
WO (4) WO2005020557A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100391249C (en) * 2005-09-28 2008-05-28 西安通视数据有限责任公司 Digital video frequency broadcasting switching method and apparatus thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5801781A (en) * 1995-11-14 1998-09-01 Fujitsu Limited Apparatus for converting moving picture stream of MPEG1 to transport stream of MPEG2
US20010033619A1 (en) * 2000-03-02 2001-10-25 Tsuyoshi Hanamura Apparatus, method and computer program product for transcoding a coded multiplexed sound and moving picture sequence

Family Cites Families (13)

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US5579183A (en) * 1994-04-08 1996-11-26 U.S. Philips Corporation Recording and reproducing an MPEG information signal on/from a record carrier
US5566174A (en) * 1994-04-08 1996-10-15 Philips Electronics North America Corporation MPEG information signal conversion system
JP3575100B2 (en) * 1994-11-14 2004-10-06 ソニー株式会社 Data transmission / reception apparatus and method, and data recording / reproduction apparatus and method
US5533021A (en) * 1995-02-03 1996-07-02 International Business Machines Corporation Apparatus and method for segmentation and time synchronization of the transmission of multimedia data
US5703877A (en) * 1995-11-22 1997-12-30 General Instrument Corporation Of Delaware Acquisition and error recovery of audio data carried in a packetized data stream
US5835493A (en) * 1996-01-02 1998-11-10 Divicom, Inc. MPEG transport stream remultiplexer
US5793425A (en) * 1996-09-13 1998-08-11 Philips Electronics North America Corporation Method and apparatus for dynamically controlling encoding parameters of multiple encoders in a multiplexed system
US6167084A (en) * 1998-08-27 2000-12-26 Motorola, Inc. Dynamic bit allocation for statistical multiplexing of compressed and uncompressed digital video signals
US6330286B1 (en) * 1999-06-09 2001-12-11 Sarnoff Corporation Flow control, latency control, and bitrate conversions in a timing correction and frame synchronization apparatus
US7088725B1 (en) * 1999-06-30 2006-08-08 Sony Corporation Method and apparatus for transcoding, and medium
US6470049B1 (en) * 2000-05-31 2002-10-22 Next Level Communications, Inc. Method for dealing with missing or untimely synchronization signals in digital communications systems
US6931071B2 (en) * 2001-08-31 2005-08-16 Stmicroelectronics, Inc. Apparatus and method for synchronizing video and audio MPEG streams in a video playback device
US6868125B2 (en) * 2001-11-29 2005-03-15 Thomson Licensing S.A. Transport stream to program stream conversion

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5801781A (en) * 1995-11-14 1998-09-01 Fujitsu Limited Apparatus for converting moving picture stream of MPEG1 to transport stream of MPEG2
US20010033619A1 (en) * 2000-03-02 2001-10-25 Tsuyoshi Hanamura Apparatus, method and computer program product for transcoding a coded multiplexed sound and moving picture sequence

Also Published As

Publication number Publication date
WO2005019999A2 (en) 2005-03-03
CA2535453C (en) 2014-04-15
WO2005019999A3 (en) 2008-11-06
WO2005020557A3 (en) 2008-11-13
CA2535457C (en) 2013-04-23
CA2535457A1 (en) 2005-03-03
CA2535306A1 (en) 2005-03-03
CA2535453A1 (en) 2005-03-03
CA2535455A1 (en) 2005-03-03
WO2005020559A2 (en) 2005-03-03
WO2005020558A2 (en) 2005-03-03
WO2005020558A3 (en) 2006-02-16
WO2005020557A2 (en) 2005-03-03

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