JPS5660145A - Broadcast communication system - Google Patents

Broadcast communication system

Info

Publication number
JPS5660145A
JPS5660145A JP13617979A JP13617979A JPS5660145A JP S5660145 A JPS5660145 A JP S5660145A JP 13617979 A JP13617979 A JP 13617979A JP 13617979 A JP13617979 A JP 13617979A JP S5660145 A JPS5660145 A JP S5660145A
Authority
JP
Japan
Prior art keywords
circuit
sent
transmission line
signal
memory
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
JP13617979A
Other languages
Japanese (ja)
Inventor
Shufu Kusayanagi
Naruhiro Hayashi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP13617979A priority Critical patent/JPS5660145A/en
Publication of JPS5660145A publication Critical patent/JPS5660145A/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 use transmission lines efficiently by making the amount of transmitted information of a transmission line even among nodes by limiting a sent-back signal to the transmission line to one by providing each node of a loop-shaped transmission system with a control circuit. CONSTITUTION:To each node 1 of the loop-shaped transmission line system, terminal T1 and transmission lines TRL1 and TRL2 are connected. Each node 1 is provided with control circuit LCC that limits a sent-back signal, sent to transmission line TRL2, to a single signal by data discriminating-decoding circuit 4, address decoding circuit 5, sent-back signal transmission deciding circuit 6, address comparing circuit 7, and address memory circuit 8. Then, information in the prescribed format is added to broadcast communication data from terminal T1 by terminal interface circuit 2 to transfer them to memory 3 and at the transfer end of data, a decoding indication signal is sent to circuit LCC, which sends a data discard signal to memory 3 to transmit single signal to transmission line TRL2 from memory 3, so that the amount of transmitted information will be made even among respective nodes 1.
JP13617979A 1979-10-22 1979-10-22 Broadcast communication system Pending JPS5660145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13617979A JPS5660145A (en) 1979-10-22 1979-10-22 Broadcast communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13617979A JPS5660145A (en) 1979-10-22 1979-10-22 Broadcast communication system

Publications (1)

Publication Number Publication Date
JPS5660145A true JPS5660145A (en) 1981-05-23

Family

ID=15169173

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13617979A Pending JPS5660145A (en) 1979-10-22 1979-10-22 Broadcast communication system

Country Status (1)

Country Link
JP (1) JPS5660145A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933953A (en) * 1982-08-20 1984-02-24 Hitachi Ltd Communication control system in communication network system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933953A (en) * 1982-08-20 1984-02-24 Hitachi Ltd Communication control system in communication network system

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