JPS55134556A - Transmission control system - Google Patents

Transmission control system

Info

Publication number
JPS55134556A
JPS55134556A JP4129479A JP4129479A JPS55134556A JP S55134556 A JPS55134556 A JP S55134556A JP 4129479 A JP4129479 A JP 4129479A JP 4129479 A JP4129479 A JP 4129479A JP S55134556 A JPS55134556 A JP S55134556A
Authority
JP
Japan
Prior art keywords
data
transmission
information
stations
pieces
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
JP4129479A
Other languages
Japanese (ja)
Inventor
Kozo Nakada
Kenji Kikuchi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4129479A priority Critical patent/JPS55134556A/en
Publication of JPS55134556A publication Critical patent/JPS55134556A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks

Landscapes

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

Abstract

PURPOSE:To shorten the time of data transmission by adding a control bit and inversion bit to data, exercising input-output control among processors before sending and by bringing error detection to effect at a reception side. CONSTITUTION:On ring transmission line L, stations STn, STn+1... are cascaded, and to respective stations, CPU1n, CPUn+1... are connected for input-output control over data among the stations. The format of the data consists of pieces of information HWH1 and HWH2, transmitted data (i), and block check character BCC. Inversion bits are added to respective bits of station addresses SAn+1 and SAn of a transmission destination and transmission origin, commands C1-C3, and data D constituting pieces of information HWH1 and HWH2 and the receiving station, when detecting an error by those pieces of information, sends an error message to the transmission origin to lessen the generation of the time over of the transmission origin, so that the shortening of the time of data transmission and the improvement of the utilization efficiency of the circuit will come into effect.
JP4129479A 1979-04-05 1979-04-05 Transmission control system Pending JPS55134556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4129479A JPS55134556A (en) 1979-04-05 1979-04-05 Transmission control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4129479A JPS55134556A (en) 1979-04-05 1979-04-05 Transmission control system

Publications (1)

Publication Number Publication Date
JPS55134556A true JPS55134556A (en) 1980-10-20

Family

ID=12604427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4129479A Pending JPS55134556A (en) 1979-04-05 1979-04-05 Transmission control system

Country Status (1)

Country Link
JP (1) JPS55134556A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5825740A (en) * 1981-08-08 1983-02-16 Fujitsu Ltd Encoding system for transmission line

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5825740A (en) * 1981-08-08 1983-02-16 Fujitsu Ltd Encoding system for transmission line
JPH0546130B2 (en) * 1981-08-08 1993-07-13 Fujitsu Ltd

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