JPS57150253A - Loop transmission system - Google Patents

Loop transmission system

Info

Publication number
JPS57150253A
JPS57150253A JP3533781A JP3533781A JPS57150253A JP S57150253 A JPS57150253 A JP S57150253A JP 3533781 A JP3533781 A JP 3533781A JP 3533781 A JP3533781 A JP 3533781A JP S57150253 A JPS57150253 A JP S57150253A
Authority
JP
Japan
Prior art keywords
station
received
terminal station
enquiry
dot pattern
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.)
Granted
Application number
JP3533781A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0113665B2 (en]
Inventor
Toyokazu Hashimoto
Masahiko Kida
Hisashi Matsumura
Hiroyuki Wada
Susumu Nakayashiki
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 JP3533781A priority Critical patent/JPS57150253A/ja
Priority to US06/354,918 priority patent/US4435704A/en
Publication of JPS57150253A publication Critical patent/JPS57150253A/ja
Publication of JPH0113665B2 publication Critical patent/JPH0113665B2/ja
Granted 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
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
    • 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
    • H04L12/437—Ring fault isolation or reconfiguration

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)
JP3533781A 1981-03-13 1981-03-13 Loop transmission system Granted JPS57150253A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP3533781A JPS57150253A (en) 1981-03-13 1981-03-13 Loop transmission system
US06/354,918 US4435704A (en) 1981-03-13 1982-03-08 Loop transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3533781A JPS57150253A (en) 1981-03-13 1981-03-13 Loop transmission system

Publications (2)

Publication Number Publication Date
JPS57150253A true JPS57150253A (en) 1982-09-17
JPH0113665B2 JPH0113665B2 (en]) 1989-03-07

Family

ID=12439022

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3533781A Granted JPS57150253A (en) 1981-03-13 1981-03-13 Loop transmission system

Country Status (1)

Country Link
JP (1) JPS57150253A (en])

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178109A (en]) * 1974-12-27 1976-07-07 Fujitsu Ltd
JPS5252503A (en) * 1975-10-27 1977-04-27 Hitachi Ltd Loop-type data transmission system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178109A (en]) * 1974-12-27 1976-07-07 Fujitsu Ltd
JPS5252503A (en) * 1975-10-27 1977-04-27 Hitachi Ltd Loop-type data transmission system

Also Published As

Publication number Publication date
JPH0113665B2 (en]) 1989-03-07

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