DE2426261C3 - Faksimilesystem - Google Patents

Faksimilesystem

Info

Publication number
DE2426261C3
DE2426261C3 DE19742426261 DE2426261A DE2426261C3 DE 2426261 C3 DE2426261 C3 DE 2426261C3 DE 19742426261 DE19742426261 DE 19742426261 DE 2426261 A DE2426261 A DE 2426261A DE 2426261 C3 DE2426261 C3 DE 2426261C3
Authority
DE
Germany
Prior art keywords
signal
circuit
output
image
picture element
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
DE19742426261
Other languages
German (de)
English (en)
Other versions
DE2426261A1 (de
DE2426261B2 (de
Inventor
Hermanus Hubertus Hendrikus Eindhoven Groothuis
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 DE2426261A1 publication Critical patent/DE2426261A1/de
Publication of DE2426261B2 publication Critical patent/DE2426261B2/de
Application granted granted Critical
Publication of DE2426261C3 publication Critical patent/DE2426261C3/de
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
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/415—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which the picture-elements are subdivided or grouped into fixed one-dimensional [1D] or two-dimensional [2D] blocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
DE19742426261 1973-06-01 1974-05-29 Faksimilesystem Expired DE2426261C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7307630A NL7307630A (ref) 1973-06-01 1973-06-01

Publications (3)

Publication Number Publication Date
DE2426261A1 DE2426261A1 (de) 1975-01-02
DE2426261B2 DE2426261B2 (de) 1981-06-11
DE2426261C3 true DE2426261C3 (de) 1982-02-18

Family

ID=19818984

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742426261 Expired DE2426261C3 (de) 1973-06-01 1974-05-29 Faksimilesystem

Country Status (7)

Country Link
JP (1) JPS5028924A (ref)
CA (1) CA1023464A (ref)
DE (1) DE2426261C3 (ref)
FR (1) FR2233773B1 (ref)
GB (1) GB1476476A (ref)
IT (1) IT1015010B (ref)
NL (1) NL7307630A (ref)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59178077A (ja) * 1983-03-28 1984-10-09 Dainippon Screen Mfg Co Ltd ２値画像のデ−タ圧縮方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922840A (en) * 1958-10-24 1960-01-26 Tele Dynamics Inc Weather chart facsimile system
FR1452663A (fr) * 1965-06-23 1966-04-15 Labo Cent Telecommunicat Procédé de réduction de bande passante dans la transmission d'images
GB1188126A (en) * 1966-06-15 1970-04-15 Xerox Corp Selective Binary Encoding
US3457363A (en) * 1966-10-03 1969-07-22 Southern Pacific Co Vertical resolution facsimile system
JPS4945005B1 (ref) * 1970-07-29 1974-12-02
JPS5325447B2 (ref) * 1972-10-16 1978-07-27

Also Published As

Publication number Publication date
FR2233773B1 (ref) 1982-05-28
DE2426261A1 (de) 1975-01-02
DE2426261B2 (de) 1981-06-11
JPS5028924A (ref) 1975-03-24
GB1476476A (en) 1977-06-16
IT1015010B (it) 1977-05-10
FR2233773A1 (ref) 1975-01-10
NL7307630A (ref) 1974-12-03
AU6948074A (en) 1975-12-04
CA1023464A (en) 1977-12-27

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee