GB1539858A - Facsimile picture signal transmission - Google Patents

Facsimile picture signal transmission

Info

Publication number
GB1539858A
GB1539858A GB1455677A GB1455677A GB1539858A GB 1539858 A GB1539858 A GB 1539858A GB 1455677 A GB1455677 A GB 1455677A GB 1455677 A GB1455677 A GB 1455677A GB 1539858 A GB1539858 A GB 1539858A
Authority
GB
United Kingdom
Prior art keywords
signal transmission
picture signal
facsimile picture
facsimile
transmission
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
GB1455677A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB1539858A publication Critical patent/GB1539858A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/419—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB1455677A 1976-04-09 1977-04-06 Facsimile picture signal transmission Expired GB1539858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762615486 DE2615486C2 (en) 1976-04-09 1976-04-09 Method and arrangement for the transmission of facsimile image signals

Publications (1)

Publication Number Publication Date
GB1539858A true GB1539858A (en) 1979-02-07

Family

ID=5974924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1455677A Expired GB1539858A (en) 1976-04-09 1977-04-06 Facsimile picture signal transmission

Country Status (7)

Country Link
JP (1) JPS52123819A (en)
AU (1) AU508389B2 (en)
CA (1) CA1114493A (en)
DE (1) DE2615486C2 (en)
FR (1) FR2347843A1 (en)
GB (1) GB1539858A (en)
NL (1) NL7703685A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2208059A (en) * 1987-08-11 1989-02-15 Apple Computer Video compression method
US5033105A (en) * 1987-08-11 1991-07-16 Apple Computer Video compression algorithm

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232370C2 (en) * 1982-08-31 1984-10-25 Siemens AG, 1000 Berlin und 8000 München Method for operating an image copier and image copier for carrying out this method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3585504A (en) * 1968-10-07 1971-06-15 British Telecommunications Res Electrical signalling system
US3700797A (en) * 1969-12-31 1972-10-24 Electronic Image Systems Corp Facsimile noise deletion and coding system
JPS5242607B2 (en) * 1973-04-12 1977-10-25
DE2440768C3 (en) * 1974-08-26 1982-03-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Method and apparatus for data compression for the facsimile transmission of graphic information
DE2450073A1 (en) * 1974-10-22 1976-05-06 Licentia Gmbh Predistortion circuit for video signal coding - supplied from facsimile image scanner and its clock pulse source

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2208059A (en) * 1987-08-11 1989-02-15 Apple Computer Video compression method
US5033105A (en) * 1987-08-11 1991-07-16 Apple Computer Video compression algorithm
GB2208059B (en) * 1987-08-11 1991-09-25 Apple Computer Video compression algorithm

Also Published As

Publication number Publication date
FR2347843A1 (en) 1977-11-04
CA1114493A (en) 1981-12-15
JPS52123819A (en) 1977-10-18
DE2615486C2 (en) 1983-12-08
NL7703685A (en) 1977-10-11
DE2615486A1 (en) 1977-10-20
AU508389B2 (en) 1980-03-20
FR2347843B1 (en) 1982-06-18
AU2417377A (en) 1978-10-19

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Legal Events

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