JPS5792975A - Facsimile communication system - Google Patents

Facsimile communication system

Info

Publication number
JPS5792975A
JPS5792975A JP55168928A JP16892880A JPS5792975A JP S5792975 A JPS5792975 A JP S5792975A JP 55168928 A JP55168928 A JP 55168928A JP 16892880 A JP16892880 A JP 16892880A JP S5792975 A JPS5792975 A JP S5792975A
Authority
JP
Japan
Prior art keywords
line density
code
density code
counter
incorporated
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.)
Pending
Application number
JP55168928A
Other languages
Japanese (ja)
Inventor
Joichi Fuwa
Shozo Kudo
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP55168928A priority Critical patent/JPS5792975A/en
Publication of JPS5792975A publication Critical patent/JPS5792975A/en
Pending 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/17—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa the scanning speed being dependent on content of picture

Abstract

PURPOSE:To transmit a control signal during transmission of picture information without changing the data constitution considerably, by using a fill bit in the data constitution for partition of one line or the like to generate the control signal. CONSTITUTION:In the transmission side, a counter 3 for change points is provided, and a fill processing logic which holds a line density code and changes this code to a line density code from the counter 3 when the line density code from the counter 3 is different from the held line density code is incorporated in a data compression encoding device 4. A control logic which holds the line density code from the counter 3 and performs scanning with a subscanning density designated by the line density code is incorporated in a scanner 1. In the receiving side, a fill processing logic which reads the line density code and gives it to a recording device 9 is incorporated in a data expansion reproducing device 7, and a control logic which feeds a recording paper by the subscanning density designated by the line density code is incorporated in the recording device 9.
JP55168928A 1980-11-28 1980-11-28 Facsimile communication system Pending JPS5792975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55168928A JPS5792975A (en) 1980-11-28 1980-11-28 Facsimile communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55168928A JPS5792975A (en) 1980-11-28 1980-11-28 Facsimile communication system

Publications (1)

Publication Number Publication Date
JPS5792975A true JPS5792975A (en) 1982-06-09

Family

ID=15877141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55168928A Pending JPS5792975A (en) 1980-11-28 1980-11-28 Facsimile communication system

Country Status (1)

Country Link
JP (1) JPS5792975A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63184465A (en) * 1987-01-26 1988-07-29 Japan Radio Co Ltd Bit synchronizing system for facsimile
JPH01289371A (en) * 1988-05-17 1989-11-21 Canon Inc Facsimile equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63184465A (en) * 1987-01-26 1988-07-29 Japan Radio Co Ltd Bit synchronizing system for facsimile
JPH01289371A (en) * 1988-05-17 1989-11-21 Canon Inc Facsimile equipment

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