JPS5680948A - Communication system - Google Patents

Communication system

Info

Publication number
JPS5680948A
JPS5680948A JP15846979A JP15846979A JPS5680948A JP S5680948 A JPS5680948 A JP S5680948A JP 15846979 A JP15846979 A JP 15846979A JP 15846979 A JP15846979 A JP 15846979A JP S5680948 A JPS5680948 A JP S5680948A
Authority
JP
Japan
Prior art keywords
retransmission
request
data
turned
station
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
JP15846979A
Other languages
Japanese (ja)
Inventor
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 JP15846979A priority Critical patent/JPS5680948A/en
Publication of JPS5680948A publication Critical patent/JPS5680948A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Transmission Control (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To enable efficient communication by receiving data without making a request to resent data when the data is from a predetermined specific transmitter. CONSTITUTION:For facsimile communication with magnetic tape device 3 provided at a receiving station side, the receiving station is provided with party station judging circuit 13, which judges a transmitting station; when the transmitting station requires no request for retransmission, switches 14 and 15 are turned off and no request for retransmission is made. Only when it requires retransmission and corrections, switch 14 is turned on to control signal processing circuit 10 and while control over whether one frame of the received data, for example, should be stored in a buffer memory or not is exercised, switch 15 is turned on to turn on the retransmission request circuit, so that a retransmission request signal will be sent to the transmission side on the detection of an error.
JP15846979A 1979-12-05 1979-12-05 Communication system Pending JPS5680948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15846979A JPS5680948A (en) 1979-12-05 1979-12-05 Communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15846979A JPS5680948A (en) 1979-12-05 1979-12-05 Communication system

Publications (1)

Publication Number Publication Date
JPS5680948A true JPS5680948A (en) 1981-07-02

Family

ID=15672416

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15846979A Pending JPS5680948A (en) 1979-12-05 1979-12-05 Communication system

Country Status (1)

Country Link
JP (1) JPS5680948A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115970A (en) * 1981-12-29 1983-07-09 Ricoh Co Ltd Storage recording system
JPS62269536A (en) * 1986-05-19 1987-11-24 Hitachi Ltd Retransmission number control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115970A (en) * 1981-12-29 1983-07-09 Ricoh Co Ltd Storage recording system
JPH05898B2 (en) * 1981-12-29 1993-01-07 Ricoh Kk
JPS62269536A (en) * 1986-05-19 1987-11-24 Hitachi Ltd Retransmission number control system

Similar Documents

Publication Publication Date Title
JPS5333520A (en) Signal transmission unit
JPS5680948A (en) Communication system
JPS5573157A (en) Data communication system
JPS57176861A (en) Terminal equipment
JPS5752261A (en) Character processor
JPS57173245A (en) Data transmission system
JPS5323507A (en) Error correction system for picture information transmissio n
JPS57129579A (en) Facsimile control system
JPS5487404A (en) Loop data transmission system
JPS55137742A (en) Data transmission system
JPS5723347A (en) Communication system
JPS57183154A (en) Multispeed transmission system
AU588364B2 (en) Method and circuit arrangement for the transmission of data signals between two control devices belonging to a loop system
JPS579163A (en) Data transmitter and data receiver
JPS57123754A (en) Loop data transmission system
JPS55138939A (en) Error correction system of radio circuit
JPS6464466A (en) Image communication equipment
JPS54110706A (en) Data terminal device
JPS5379407A (en) Terminal equipment for serites type interface
JPS57116433A (en) Radio transmitter
JPS5664549A (en) Message transmission control system
JPS5466009A (en) Detection system for circuit fault of two-wire communication device
JPS5383513A (en) Error control system for picture signal
JPS5579560A (en) Code error control system
JPS6450665A (en) Facsimile transmitter