GB2009568B - Picture signal coding apparatus - Google Patents

Picture signal coding apparatus

Info

Publication number: GB2009568B
Authority: GB; United Kingdom
Prior art keywords: picture signal; coding apparatus; signal coding; picture; signal
Prior art date: 1977-11-28
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

GB7845201A

Other versions

GB2009568A (en

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.)

NTT Inc

Original Assignee

Nippon Telegraph and Telephone 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.)

1977-11-28

Filing date

1978-11-20

Publication date

1982-03-24

1977-11-28 Priority claimed from JP14238977A external-priority patent/JPS5474623A/en

1978-01-24 Priority claimed from JP638878A external-priority patent/JPS5499512A/en

1978-01-24 Priority claimed from JP638978A external-priority patent/JPS5499513A/en

1978-01-24 Priority claimed from JP639078A external-priority patent/JPS5499514A/en

1978-11-20 Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp

1979-06-13 Publication of GB2009568A publication Critical patent/GB2009568A/en

1982-03-24 Application granted granted Critical

1982-03-24 Publication of GB2009568B publication Critical patent/GB2009568B/en

Status Expired legal-status Critical Current

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
- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
- H04N19/98—Adaptive-dynamic-range coding [ADRC]

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Compression Or Coding Systems Of Tv Signals (AREA)
Compression, Expansion, Code Conversion, And Decoders (AREA)
Image Processing (AREA)

GB7845201A 1977-11-28 1978-11-20 Picture signal coding apparatus Expired GB2009568B (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
JP14238977A JPS5474623A (en)	1977-11-28	1977-11-28	Coding processing system for video signal
JP638878A JPS5499512A (en)	1978-01-24	1978-01-24	Encoding/decoding process system for picture signal
JP638978A JPS5499513A (en)	1978-01-24	1978-01-24	Encoding system of picture signal
JP639078A JPS5499514A (en)	1978-01-24	1978-01-24	Encoding process system for picture signal

Publications (2)

Publication Number	Publication Date
GB2009568A GB2009568A (en)	1979-06-13
GB2009568B true GB2009568B (en)	1982-03-24

Family

ID=27454474

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB7845201A Expired GB2009568B (en)	1977-11-28	1978-11-20	Picture signal coding apparatus

Country Status (3)

Country	Link
DE (1)	DE2851481C2 (en)
FR (1)	FR2410401A1 (en)
GB (1)	GB2009568B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4266249A (en) *	1978-09-19	1981-05-05	Bell Telephone Laboratories, Incorporated	Digital encoder for facsimile transmission
US4319267A (en) *	1979-02-16	1982-03-09	Nippon Telegraph And Telephone Public Corporation	Picture coding and/or decoding equipment
DE3043521A1 (en) *	1980-11-18	1982-06-24	Agfa-Gevaert Ag, 5090 Leverkusen	Digital processing of document scan - uses nonlinearly encoded digital signal to give image-improving weighting
US4409623A (en) *	1981-01-31	1983-10-11	Nippon Telegraph & Telephone Public Corporation	Method and equipment for processing gray scale facsimile signal
GB2129652B (en) *	1982-10-27	1986-06-04	Matsushita Electric Industrial Co Ltd	Method and apparatus for processing image signal
GB2149994B (en) *	1983-11-14	1987-05-20	Matsushita Electric Industrial Co Ltd	Method and apparatus for processing video signals
JPS6186834A (en) *	1984-10-04	1986-05-02	Olympus Optical Co Ltd	Transfer device for picture data
GB2173675A (en) *	1985-03-22	1986-10-15	Steven Henry Lerman	Communication system
GB2238928B (en) *	1989-09-05	1994-06-08	Canon Kk	Image data converting method and image processing apparatus
DE4027897C2 (en) *	1989-09-05	1996-07-18	Canon Kk	Image processing device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3403226A (en) *	1965-09-30	1968-09-24	Bell Telephone Labor Inc	Reduced bandwidth dual mode encoding of video signals
DE2020639A1 (en) *	1970-04-28	1971-11-18	Bosch Elektronik Gmbh	Method for the electrical transmission of original images
JPS5220091B2 (en) *	1972-08-23	1977-06-01
US3984626A (en) *	1975-08-01	1976-10-05	Bell Telephone Laboratories, Incorporated	Picture signal coder
FR2329124A1 (en) *	1975-10-24	1977-05-20	Telecommunications Sa	MATRIX-TRANSFORMED IMAGE ENCODER-DECODER WITH WEIGHTING OF THE CONTRIBUTIONS OF THE IMAGE POINTS TO THE FORMATION OF THE TRANSFORMATION
US4032977A (en) *	1976-06-03	1977-06-28	Xerox Corporation	Gray scale interpolation technique

1978
- 1978-11-20 GB GB7845201A patent/GB2009568B/en not_active Expired
- 1978-11-28 FR FR7833585A patent/FR2410401A1/en active Granted
- 1978-11-28 DE DE19782851481 patent/DE2851481C2/en not_active Expired

Also Published As

Publication number	Publication date
DE2851481A1 (en)	1979-05-31
GB2009568A (en)	1979-06-13
FR2410401A1 (en)	1979-06-22
FR2410401B1 (en)	1984-06-29
DE2851481C2 (en)	1982-05-06

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Legal Events

Date	Code	Title	Description
1998-12-09	PE20	Patent expired after termination of 20 years	Effective date: 19981119