GB2353654B - Signal processing - Google Patents

Signal processing

Info

Publication number
GB2353654B
GB2353654B GB9920275A GB9920275A GB2353654B GB 2353654 B GB2353654 B GB 2353654B GB 9920275 A GB9920275 A GB 9920275A GB 9920275 A GB9920275 A GB 9920275A GB 2353654 B GB2353654 B GB 2353654B
Authority
GB
United Kingdom
Prior art keywords
signal processing
signal
processing
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
GB9920275A
Other versions
GB2353654A (en
GB9920275D0 (en
Inventor
James Edward Burns
Robert Mark Stefan Porter
Timothy Stuart Roberts
Nicholas Ian Saunders
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.)
Sony Europe Ltd
Original Assignee
Sony United Kingdom Ltd
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 Sony United Kingdom Ltd filed Critical Sony United Kingdom Ltd
Priority to GB9920275A priority Critical patent/GB2353654B/en
Publication of GB9920275D0 publication Critical patent/GB9920275D0/en
Publication of GB2353654A publication Critical patent/GB2353654A/en
Application granted granted Critical
Publication of GB2353654B publication Critical patent/GB2353654B/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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234354—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering signal-to-noise ratio parameters, e.g. requantization
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output 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]
    • H04N21/20—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, manipulating MPEG-4 scene graphs
    • H04N21/23424—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement
    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/44016—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving splicing one content stream with another content stream, e.g. for substituting a video clip

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
GB9920275A 1999-08-26 1999-08-26 Signal processing Expired - Fee Related GB2353654B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9920275A GB2353654B (en) 1999-08-26 1999-08-26 Signal processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9920275A GB2353654B (en) 1999-08-26 1999-08-26 Signal processing

Publications (3)

Publication Number Publication Date
GB9920275D0 GB9920275D0 (en) 1999-10-27
GB2353654A GB2353654A (en) 2001-02-28
GB2353654B true GB2353654B (en) 2004-02-18

Family

ID=10859886

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9920275A Expired - Fee Related GB2353654B (en) 1999-08-26 1999-08-26 Signal processing

Country Status (1)

Country Link
GB (1) GB2353654B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0116119D0 (en) * 2001-06-30 2001-08-22 Koninkl Philips Electronics Nv Transcoding of video data streams
GB2456486B (en) * 2006-11-17 2011-01-26 British Broadcasting Corp Archiving of digital video

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5418658A (en) * 1993-06-04 1995-05-23 Daewoo Electronics Co., Ltd. Digital video signal recording/reproducing apparatus for longer playing time
EP0661885A1 (en) * 1993-12-28 1995-07-05 Canon Kabushiki Kaisha Image processing method and apparatus for converting between data coded in different formats

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5418658A (en) * 1993-06-04 1995-05-23 Daewoo Electronics Co., Ltd. Digital video signal recording/reproducing apparatus for longer playing time
EP0661885A1 (en) * 1993-12-28 1995-07-05 Canon Kabushiki Kaisha Image processing method and apparatus for converting between data coded in different formats

Also Published As

Publication number Publication date
GB2353654A (en) 2001-02-28
GB9920275D0 (en) 1999-10-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090826