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JPS56117455A - Transmission control system - Google Patents

Transmission control system

Info

Publication number
JPS56117455A
JPS56117455A JP2202080A JP2202080A JPS56117455A JP S56117455 A JPS56117455 A JP S56117455A JP 2202080 A JP2202080 A JP 2202080A JP 2202080 A JP2202080 A JP 2202080A JP S56117455 A JPS56117455 A JP S56117455A
Authority
JP
Japan
Prior art keywords
station
transmission
transmits
message
acknowledgement
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
JP2202080A
Other languages
Japanese (ja)
Inventor
Keizo Oda
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 JP2202080A priority Critical patent/JPS56117455A/en
Publication of JPS56117455A publication Critical patent/JPS56117455A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/188—Time-out mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To ensure an application of a transmission circuit having a large delay of transmission to a data communication system, by discontinuing the receiving action of the station which transmits a message for the going and coming-back data transmission time from the time point of the end of transmission. CONSTITUTION:The master station 17 and the slave station 18 discontinue the receiving action for the going and coming-back transmission time 19 after a transmission of message. The station 17 transmits the answer urge ENQ21 after a transmission of the information message since no answer is given from the station 18 even after a fixed time. The station 18 transmits the acknowledgement ACK22, but this acknowledgement is not processed at the station 17 since the station 17 discontinues the receiving action. Thus the station 17 transmits the answer urge ENQ23 again, and the station 18 receives this ENQ23 to transmit the acknowledgement ACK24 again. Receiving the ACK24, the station 17 transmits the next information message 25. After this, a normal exchange is ensured for the message.
JP2202080A 1980-02-22 1980-02-22 Transmission control system Pending JPS56117455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2202080A JPS56117455A (en) 1980-02-22 1980-02-22 Transmission control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2202080A JPS56117455A (en) 1980-02-22 1980-02-22 Transmission control system

Publications (1)

Publication Number Publication Date
JPS56117455A true JPS56117455A (en) 1981-09-14

Family

ID=12071297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2202080A Pending JPS56117455A (en) 1980-02-22 1980-02-22 Transmission control system

Country Status (1)

Country Link
JP (1) JPS56117455A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0245972A2 (en) * 1986-04-29 1987-11-19 AT&T Corp. Communication channel transceiver
JPH02306747A (en) * 1989-05-20 1990-12-20 Murata Mach Ltd Facsimile equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0245972A2 (en) * 1986-04-29 1987-11-19 AT&T Corp. Communication channel transceiver
JPH02306747A (en) * 1989-05-20 1990-12-20 Murata Mach Ltd Facsimile equipment

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