FR2347843A1 - Procede et dispositif pour la transmission de signaux d'image en fac-simile - Google Patents

Procede et dispositif pour la transmission de signaux d'image en fac-simile

Info

Publication number
FR2347843A1
FR2347843A1 FR7710606A FR7710606A FR2347843A1 FR 2347843 A1 FR2347843 A1 FR 2347843A1 FR 7710606 A FR7710606 A FR 7710606A FR 7710606 A FR7710606 A FR 7710606A FR 2347843 A1 FR2347843 A1 FR 2347843A1
Authority
FR
France
Prior art keywords
transmission
image signals
facsimile image
facsimile
signals
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.)
Granted
Application number
FR7710606A
Other languages
English (en)
Other versions
FR2347843B1 (fr
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 FR2347843A1 publication Critical patent/FR2347843A1/fr
Application granted granted Critical
Publication of FR2347843B1 publication Critical patent/FR2347843B1/fr
Granted 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)
FR7710606A 1976-04-09 1977-04-07 Procede et dispositif pour la transmission de signaux d'image en fac-simile Granted FR2347843A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762615486 DE2615486C2 (de) 1976-04-09 1976-04-09 Verfahren und Anordnung zur Übertragung von Faksimile-Bildsignalen

Publications (2)

Publication Number Publication Date
FR2347843A1 true FR2347843A1 (fr) 1977-11-04
FR2347843B1 FR2347843B1 (fr) 1982-06-18

Family

ID=5974924

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7710606A Granted FR2347843A1 (fr) 1976-04-09 1977-04-07 Procede et dispositif pour la transmission de signaux d'image en fac-simile

Country Status (7)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232370C2 (de) * 1982-08-31 1984-10-25 Siemens AG, 1000 Berlin und 8000 München Verfahren zum Betrieb eines Bildkopierers, sowie Bildkopierer zur Durchführung dieses Verfahrens
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

Citations (3)

* 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
DE2450073A1 (de) * 1974-10-22 1976-05-06 Licentia Gmbh Vorverzerrer zur aufbereitung von runs vor einer rl-codierung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242607B2 (fr) * 1973-04-12 1977-10-25
DE2440768C3 (de) * 1974-08-26 1982-03-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren und Vorrichtung zur Datenkompression für die Faksimile-Übertragung graphischer Information

Patent Citations (3)

* 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
DE2450073A1 (de) * 1974-10-22 1976-05-06 Licentia Gmbh Vorverzerrer zur aufbereitung von runs vor einer rl-codierung

Also Published As

Publication number Publication date
AU508389B2 (en) 1980-03-20
DE2615486C2 (de) 1983-12-08
NL7703685A (nl) 1977-10-11
DE2615486A1 (de) 1977-10-20
AU2417377A (en) 1978-10-19
CA1114493A (fr) 1981-12-15
FR2347843B1 (fr) 1982-06-18
GB1539858A (en) 1979-02-07
JPS52123819A (en) 1977-10-18

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Legal Events

Date Code Title Description
ST Notification of lapse