JPS5389603A - Loop-type data transmission system - Google Patents

Loop-type data transmission system

Info

Publication number
JPS5389603A
JPS5389603A JP391477A JP391477A JPS5389603A JP S5389603 A JPS5389603 A JP S5389603A JP 391477 A JP391477 A JP 391477A JP 391477 A JP391477 A JP 391477A JP S5389603 A JPS5389603 A JP S5389603A
Authority
JP
Japan
Prior art keywords
loop
data transmission
transmission system
type data
signal
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
JP391477A
Other languages
Japanese (ja)
Inventor
Masakazu Okada
Toshiyuki Ide
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP391477A priority Critical patent/JPS5389603A/en
Publication of JPS5389603A publication Critical patent/JPS5389603A/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)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To make the circuit small-size and low-price and improve the reliability of system by disusing the conventional third frequency signal by using the specific bit signal as the circuit release signal.
JP391477A 1977-01-19 1977-01-19 Loop-type data transmission system Pending JPS5389603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP391477A JPS5389603A (en) 1977-01-19 1977-01-19 Loop-type data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP391477A JPS5389603A (en) 1977-01-19 1977-01-19 Loop-type data transmission system

Publications (1)

Publication Number Publication Date
JPS5389603A true JPS5389603A (en) 1978-08-07

Family

ID=11570436

Family Applications (1)

Application Number Title Priority Date Filing Date
JP391477A Pending JPS5389603A (en) 1977-01-19 1977-01-19 Loop-type data transmission system

Country Status (1)

Country Link
JP (1) JPS5389603A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5733852A (en) * 1980-08-08 1982-02-24 Meidensha Electric Mfg Co Ltd Data exchanging method for loop transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5733852A (en) * 1980-08-08 1982-02-24 Meidensha Electric Mfg Co Ltd Data exchanging method for loop transmission

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