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ES409120A1 - Facsimile signal transmission system - Google Patents

Facsimile signal transmission system

Info

Publication number
ES409120A1
ES409120A1 ES409120A ES409120A ES409120A1 ES 409120 A1 ES409120 A1 ES 409120A1 ES 409120 A ES409120 A ES 409120A ES 409120 A ES409120 A ES 409120A ES 409120 A1 ES409120 A1 ES 409120A1
Authority
ES
Spain
Prior art keywords
signal
stroke length
mark
decoder
stroke
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
ES409120A
Other languages
Spanish (es)
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of ES409120A1 publication Critical patent/ES409120A1/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
    • 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)
  • Facsimiles In General (AREA)
  • Facsimile Transmission Control (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

A receiver in a facsimile system that receives successive binary code signals representing respectively the stroke lengths of at least one mark signal and at least one alternately appearing gap signal and a vertical sync pulse signal, which is characterized by: - a decoder to decode said binary code signals into said mark and space signals; - a stroke length memory for cumulatively memorizing the stroke length of said mark and space signals, said stroke length memory producing an overflow signal when it memorizes stroke lengths equal to the total stroke length of a signal of 1-H facsimile; and - a control device for causing said decoder to produce a mark or space signal having a stroke length equal to the time interval that elapses from the moment when a pulse of said vertical synchronization pulse signal appears to another moment at which said decoder produces said overflow signal. (Machine-translation by Google Translate, not legally binding)
ES409120A 1971-11-29 1972-11-29 Facsimile signal transmission system Expired ES409120A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9648871A JPS5132487B2 (en) 1971-11-29 1971-11-29

Publications (1)

Publication Number Publication Date
ES409120A1 true ES409120A1 (en) 1975-11-16

Family

ID=14166441

Family Applications (1)

Application Number Title Priority Date Filing Date
ES409120A Expired ES409120A1 (en) 1971-11-29 1972-11-29 Facsimile signal transmission system

Country Status (7)

Country Link
JP (1) JPS5132487B2 (en)
AU (1) AU450764B2 (en)
CA (1) CA958803A (en)
DE (1) DE2258469C3 (en)
ES (1) ES409120A1 (en)
FR (1) FR2165903B1 (en)
GB (1) GB1418478A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS519612A (en) * 1974-07-15 1976-01-26 Sanyo Electric Co GASHINGOTAIIKIATSUSHUKU DENSOSOCHI
JPS53101216A (en) * 1977-02-16 1978-09-04 Matsushita Electric Ind Co Ltd Facsimile receiving system
JPS53101217A (en) * 1977-02-16 1978-09-04 Matsushita Electric Ind Co Ltd Facsimile transmission system

Also Published As

Publication number Publication date
CA958803A (en) 1974-12-03
AU450764B2 (en) 1974-07-18
AU4938672A (en) 1974-05-30
JPS4881415A (en) 1973-10-31
JPS5132487B2 (en) 1976-09-13
FR2165903A1 (en) 1973-08-10
DE2258469A1 (en) 1973-06-14
FR2165903B1 (en) 1977-07-22
DE2258469B2 (en) 1974-12-19
GB1418478A (en) 1975-12-24
DE2258469C3 (en) 1975-07-24

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19930204