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GB2106348B - Video signal coding - Google Patents

Video signal coding

Info

Publication number
GB2106348B
GB2106348B GB8128959A GB8128959A GB2106348B GB 2106348 B GB2106348 B GB 2106348B GB 8128959 A GB8128959 A GB 8128959A GB 8128959 A GB8128959 A GB 8128959A GB 2106348 B GB2106348 B GB 2106348B
Authority
GB
United Kingdom
Prior art keywords
video signal
line
channel
signal coding
coding procedure
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
Application number
GB8128959A
Other versions
GB2106348A (en
Inventor
Timothy Anthony Moore
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.)
British Broadcasting Corp
Original Assignee
British Broadcasting Corp
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 British Broadcasting Corp filed Critical British Broadcasting Corp
Priority to GB8128959A priority Critical patent/GB2106348B/en
Publication of GB2106348A publication Critical patent/GB2106348A/en
Application granted granted Critical
Publication of GB2106348B publication Critical patent/GB2106348B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques

Landscapes

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

Abstract

A video signal is encoded by a recursive coding procedure such as differential pulse code modulation (DPCM). Individual lines of the video signal are distributed on a line-by-line basis cyclically between two (or more) processing channels and re-timed thereby reducing the signal rate in each channel. Each channel has its own encoder (11-16; 21-26) whose outputs are combined (4) to produce the desired encoded output. The encoders can be interconnected (16, 26) so that at least part of the preceding line is available for the recursive coding procedure. <IMAGE>
GB8128959A 1981-09-24 1981-09-24 Video signal coding Expired GB2106348B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8128959A GB2106348B (en) 1981-09-24 1981-09-24 Video signal coding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8128959A GB2106348B (en) 1981-09-24 1981-09-24 Video signal coding

Publications (2)

Publication Number Publication Date
GB2106348A GB2106348A (en) 1983-04-07
GB2106348B true GB2106348B (en) 1985-09-04

Family

ID=10524724

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8128959A Expired GB2106348B (en) 1981-09-24 1981-09-24 Video signal coding

Country Status (1)

Country Link
GB (1) GB2106348B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0314356B1 (en) * 1987-10-27 1999-03-31 Canon Kabushiki Kaisha Predictive coding system
CA2016996C (en) * 1989-05-18 1993-01-19 Masayuki Okajima Codec system encoding and decoding an image signal at a high speed
GB2238442A (en) * 1989-11-21 1991-05-29 Sony Corp Differential pulse code modulation

Also Published As

Publication number Publication date
GB2106348A (en) 1983-04-07

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Legal Events

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