JPS56157171A - Picture transmitting device - Google Patents

Picture transmitting device

Info

Publication number
JPS56157171A
JPS56157171A JP5999080A JP5999080A JPS56157171A JP S56157171 A JPS56157171 A JP S56157171A JP 5999080 A JP5999080 A JP 5999080A JP 5999080 A JP5999080 A JP 5999080A JP S56157171 A JPS56157171 A JP S56157171A
Authority
JP
Japan
Prior art keywords
line density
memory
data
line
parts
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
JP5999080A
Other languages
Japanese (ja)
Inventor
Masaaki Mori
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 JP5999080A priority Critical patent/JPS56157171A/en
Publication of JPS56157171A publication Critical patent/JPS56157171A/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
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)

Abstract

PURPOSE:To realize an effective use of a main memory, by connecting a line density converting part to the optimum position according to the transmitting conditions among plural reading and recording parts having different scanning line densities. CONSTITUTION:The line density of the 1st, 2nd and 3rd reading parts 10A, 10B and 10C are equal to those of the 1st, 2nd and 3rd recording parts 11A, 11B and 11C respectively. A picture information is transmitted among these parts via a data compression part 3, a main memory 7 and a data extension part and according to the difference of line density. When a transmission is carried out from a high to low line density, a line density converting part 13 is connected to perform a conversion of line density before compression of the data. The converted line density is supplied to the memory 7. When a transmission to a opposite side terminal device 9 via a public line, the line density of said device 9 is detected at a system control unit 14 and from a table of a set memory 15 with a connection of the part 13 given if necessary. Thus only the minimum necessary data is stored in the memory 7 to ensure a effective use of the main memory.
JP5999080A 1980-05-08 1980-05-08 Picture transmitting device Pending JPS56157171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5999080A JPS56157171A (en) 1980-05-08 1980-05-08 Picture transmitting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5999080A JPS56157171A (en) 1980-05-08 1980-05-08 Picture transmitting device

Publications (1)

Publication Number Publication Date
JPS56157171A true JPS56157171A (en) 1981-12-04

Family

ID=13129107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5999080A Pending JPS56157171A (en) 1980-05-08 1980-05-08 Picture transmitting device

Country Status (1)

Country Link
JP (1) JPS56157171A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6010976A (en) * 1983-06-30 1985-01-21 Fujitsu Ltd Picture data processing system
JPS6085679A (en) * 1983-10-17 1985-05-15 Canon Inc Picture processing system
JPS6085682A (en) * 1983-10-17 1985-05-15 Canon Inc Picture processing system
JPS60236583A (en) * 1984-05-10 1985-11-25 Canon Inc Picture data processor
JPS6253572A (en) * 1985-09-03 1987-03-09 Nec Corp Facsimile equipment
JPH0198370A (en) * 1987-10-09 1989-04-17 Fuji Xerox Co Ltd Document conversion selection system in facsimile equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6010976A (en) * 1983-06-30 1985-01-21 Fujitsu Ltd Picture data processing system
JPS6085679A (en) * 1983-10-17 1985-05-15 Canon Inc Picture processing system
JPS6085682A (en) * 1983-10-17 1985-05-15 Canon Inc Picture processing system
JPS60236583A (en) * 1984-05-10 1985-11-25 Canon Inc Picture data processor
JPH0646774B2 (en) * 1984-05-10 1994-06-15 キヤノン株式会社 Image data processing device
JPS6253572A (en) * 1985-09-03 1987-03-09 Nec Corp Facsimile equipment
JPH0198370A (en) * 1987-10-09 1989-04-17 Fuji Xerox Co Ltd Document conversion selection system in facsimile equipment

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