GB2396502B - Frame synchronisation of compressed video signals - Google Patents

Frame synchronisation of compressed video signals

Info

Publication number
GB2396502B
GB2396502B GB0229794A GB0229794A GB2396502B GB 2396502 B GB2396502 B GB 2396502B GB 0229794 A GB0229794 A GB 0229794A GB 0229794 A GB0229794 A GB 0229794A GB 2396502 B GB2396502 B GB 2396502B
Authority
GB
United Kingdom
Prior art keywords
video signals
compressed video
frame synchronisation
synchronisation
frame
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
GB0229794A
Other versions
GB0229794D0 (en
GB2396502A (en
Inventor
Brian Richardson
Alois Bock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ericsson Television AS
Original Assignee
Tandberg Television AS
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 Tandberg Television AS filed Critical Tandberg Television AS
Priority to GB0229794A priority Critical patent/GB2396502B/en
Publication of GB0229794D0 publication Critical patent/GB0229794D0/en
Publication of GB2396502A publication Critical patent/GB2396502A/en
Application granted granted Critical
Publication of GB2396502B publication Critical patent/GB2396502B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/004—Predictors, e.g. intraframe, interframe coding
    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234381—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the temporal resolution, e.g. decreasing the frame rate by frame skipping
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
GB0229794A 2002-12-20 2002-12-20 Frame synchronisation of compressed video signals Expired - Fee Related GB2396502B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0229794A GB2396502B (en) 2002-12-20 2002-12-20 Frame synchronisation of compressed video signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0229794A GB2396502B (en) 2002-12-20 2002-12-20 Frame synchronisation of compressed video signals

Publications (3)

Publication Number Publication Date
GB0229794D0 GB0229794D0 (en) 2003-01-29
GB2396502A GB2396502A (en) 2004-06-23
GB2396502B true GB2396502B (en) 2006-03-15

Family

ID=9950144

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0229794A Expired - Fee Related GB2396502B (en) 2002-12-20 2002-12-20 Frame synchronisation of compressed video signals

Country Status (1)

Country Link
GB (1) GB2396502B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080212690A1 (en) * 2007-03-01 2008-09-04 Qualcomm Incorporated Transcoder media time conversion
WO2011137919A1 (en) 2010-05-07 2011-11-10 Siemens Enterprise Communications Gmbh & Co. Kg Method and device for modifying a coded data stream

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5481307A (en) * 1992-04-01 1996-01-02 Intel Corporation Method and apparatus for compressing and decompressing a sequence of digital video images using sync frames
EP0881840A2 (en) * 1997-05-28 1998-12-02 Sarnoff Corporation Information stream frame synchronization

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5481307A (en) * 1992-04-01 1996-01-02 Intel Corporation Method and apparatus for compressing and decompressing a sequence of digital video images using sync frames
EP0881840A2 (en) * 1997-05-28 1998-12-02 Sarnoff Corporation Information stream frame synchronization

Also Published As

Publication number Publication date
GB0229794D0 (en) 2003-01-29
GB2396502A (en) 2004-06-23

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20090416 AND 20090422

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20161220