JPS5539447A - Data transmission control method - Google Patents

Data transmission control method

Info

Publication number
JPS5539447A
JPS5539447A JP11295278A JP11295278A JPS5539447A JP S5539447 A JPS5539447 A JP S5539447A JP 11295278 A JP11295278 A JP 11295278A JP 11295278 A JP11295278 A JP 11295278A JP S5539447 A JPS5539447 A JP S5539447A
Authority
JP
Japan
Prior art keywords
data
transmission
stx
control unit
communication control
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
JP11295278A
Other languages
Japanese (ja)
Inventor
Akihiko Otani
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP11295278A priority Critical patent/JPS5539447A/en
Publication of JPS5539447A publication Critical patent/JPS5539447A/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
    • 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
    • H04L1/1887—Scheduling and prioritising arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To minimize the unnecessary time for the data transmission control. CONSTITUTION:When the data is transmitted from one transmission control unit to other ones, STX transmission process 4 is carried out to transmit STX. Then data transmission process 5 is carried out to transmit data 1. Other communication control units start reception error detection process 7 after being put under the reception state through reception process 6. If reception error 8 occurs at time point X, NAK reply process 9 is carried out to transmit NAK to the communication control unit. The communication control unit, when deciding the reception of NAK in process 10, stops the subsequent data transmission process 5 and then starts STX process 4 and then process 5. As a reuslt, both STX and data 1 are transmitted again. With end of transmission of data 1, the communication control unit transmits EXT and then horizontal parity character BCC of the block to complete the transmission of one block.
JP11295278A 1978-09-14 1978-09-14 Data transmission control method Pending JPS5539447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11295278A JPS5539447A (en) 1978-09-14 1978-09-14 Data transmission control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11295278A JPS5539447A (en) 1978-09-14 1978-09-14 Data transmission control method

Publications (1)

Publication Number Publication Date
JPS5539447A true JPS5539447A (en) 1980-03-19

Family

ID=14599627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11295278A Pending JPS5539447A (en) 1978-09-14 1978-09-14 Data transmission control method

Country Status (1)

Country Link
JP (1) JPS5539447A (en)

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