JPS5639654A - Loop transmission memory system with update status - Google Patents

Loop transmission memory system with update status

Info

Publication number
JPS5639654A
JPS5639654A JP11503179A JP11503179A JPS5639654A JP S5639654 A JPS5639654 A JP S5639654A JP 11503179 A JP11503179 A JP 11503179A JP 11503179 A JP11503179 A JP 11503179A JP S5639654 A JPS5639654 A JP S5639654A
Authority
JP
Japan
Prior art keywords
information
status
update
loop transmission
stored
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
JP11503179A
Other languages
Japanese (ja)
Other versions
JPS6355258B2 (en
Inventor
Shinji Takahashi
Mitsuhiro Hattori
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11503179A priority Critical patent/JPS5639654A/en
Publication of JPS5639654A publication Critical patent/JPS5639654A/en
Publication of JPS6355258B2 publication Critical patent/JPS6355258B2/ja
Granted 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 prevent troubles in rewriting memory contents due to an information transfer lag, by giving previous notice of update at a certain time before the update when the memory contents are updated. CONSTITUTION:Information processor 101 sends its state to loop transmission lines 104, 108 and 112 via terminal equipment 103. This information is transmitted endlessly and information processor 109 can refer to this information through terminal equipment 111. In the said system, the status regarding the update of the stored information is tranmitted via the loop transmission line together with the stored information. Namely, the status is added right behind information to be stored and when the necessity of updating the memory contents arises, equipment 103 turns on this status. After this information takes a round of transmission lines 104, 108 and 112, equipment 103 rewrites the contents of the information and turns off the status. The information processor which makes use of the information, when the status is on, the utilization of the information is allowed.
JP11503179A 1979-09-07 1979-09-07 Loop transmission memory system with update status Granted JPS5639654A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11503179A JPS5639654A (en) 1979-09-07 1979-09-07 Loop transmission memory system with update status

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11503179A JPS5639654A (en) 1979-09-07 1979-09-07 Loop transmission memory system with update status

Publications (2)

Publication Number Publication Date
JPS5639654A true JPS5639654A (en) 1981-04-15
JPS6355258B2 JPS6355258B2 (en) 1988-11-01

Family

ID=14652493

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11503179A Granted JPS5639654A (en) 1979-09-07 1979-09-07 Loop transmission memory system with update status

Country Status (1)

Country Link
JP (1) JPS5639654A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5817597A (en) * 1981-07-24 1983-02-01 Hitachi Ltd Information processing system
JPS6020903A (en) * 1983-07-15 1985-02-02 Dainippon Ink & Chem Inc Production of aqueous polymer dispersion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5817597A (en) * 1981-07-24 1983-02-01 Hitachi Ltd Information processing system
JPS6020903A (en) * 1983-07-15 1985-02-02 Dainippon Ink & Chem Inc Production of aqueous polymer dispersion

Also Published As

Publication number Publication date
JPS6355258B2 (en) 1988-11-01

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