JPS567566A - Transmission system of color facsimile signal - Google Patents

Transmission system of color facsimile signal

Info

Publication number
JPS567566A
JPS567566A JP8357679A JP8357679A JPS567566A JP S567566 A JPS567566 A JP S567566A JP 8357679 A JP8357679 A JP 8357679A JP 8357679 A JP8357679 A JP 8357679A JP S567566 A JPS567566 A JP S567566A
Authority
JP
Japan
Prior art keywords
signal
output
phase
flip flop
carrier
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
JP8357679A
Other languages
Japanese (ja)
Other versions
JPS6031424B2 (en
Inventor
Osamu Nakamura
Tetsuji Yamamoto
Yoshihiro Jinbo
Kazuo Kobayashi
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.)
Nippon Telegraph and Telephone Corp
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.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP54083576A priority Critical patent/JPS6031424B2/en
Publication of JPS567566A publication Critical patent/JPS567566A/en
Publication of JPS6031424B2 publication Critical patent/JPS6031424B2/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
    • H04N1/46—Colour picture communication systems
    • H04N1/64—Systems for the transmission or the storage of the colour picture signal; Details therefor, e.g. coding or decoding means therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)

Abstract

PURPOSE:To make easy the modulation and demodulation of two color signals, by the amplitude modulation of the carrier shifted by a given phase every appearance of the same color signal if the same color signal is consecutive in transmitting two color signals of black and red, and of the carrier of the same phase as that for the chrominance signal immediately before in case of different color signal. CONSTITUTION:The chrominance signal of two colors is input to the phase control circuit 16 and the flip flop 17 is reset with the black signal and set with the red signal. Further, it is fed to the coincidence circuit 19 with the output delayed by one signal at the D type flip flop 18. If the input to the coincidence circuit 19 is in agreement, high level is output and if in disagreement, low level is output. The output of the flip flop 21 is inverted every time when the output of the video signal circuit 13 is given to the flip flop 21 at high level output. The phase of the carrier is inverted every same color signal and the phase of the carrier immediately before is output in case of different color signal.
JP54083576A 1979-06-29 1979-06-29 Color facsimile signal transmission system Expired JPS6031424B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54083576A JPS6031424B2 (en) 1979-06-29 1979-06-29 Color facsimile signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54083576A JPS6031424B2 (en) 1979-06-29 1979-06-29 Color facsimile signal transmission system

Publications (2)

Publication Number Publication Date
JPS567566A true JPS567566A (en) 1981-01-26
JPS6031424B2 JPS6031424B2 (en) 1985-07-22

Family

ID=13806322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54083576A Expired JPS6031424B2 (en) 1979-06-29 1979-06-29 Color facsimile signal transmission system

Country Status (1)

Country Link
JP (1) JPS6031424B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6118850U (en) * 1984-07-04 1986-02-03 株式会社 石田衡器製作所 Label sensor in label printer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6118850U (en) * 1984-07-04 1986-02-03 株式会社 石田衡器製作所 Label sensor in label printer

Also Published As

Publication number Publication date
JPS6031424B2 (en) 1985-07-22

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