JPS55143651A - Message transmission system - Google Patents

Message transmission system

Info

Publication number
JPS55143651A
JPS55143651A JP5030579A JP5030579A JPS55143651A JP S55143651 A JPS55143651 A JP S55143651A JP 5030579 A JP5030579 A JP 5030579A JP 5030579 A JP5030579 A JP 5030579A JP S55143651 A JPS55143651 A JP S55143651A
Authority
JP
Japan
Prior art keywords
office
terminal
response
central office
address
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
JP5030579A
Other languages
Japanese (ja)
Inventor
Shigemi Adachi
Shinichi Nakamura
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 JP5030579A priority Critical patent/JPS55143651A/en
Publication of JPS55143651A publication Critical patent/JPS55143651A/en
Pending legal-status Critical Current

Links

Landscapes

  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE: To shorten the time of transmission by sending out the same message such as a terminal control program from a central office at a time, by providing every terminal office with the method of recognizing an address assigning all terminal offices in addition to its own office address.
CONSTITUTION: The computer of central office 1 is connected to terminal offices 4 via communication circuit 3 to transmit messages. Each terminal office 4 in this constitution is provided with address recognizing circuit 6 which recognizes all terminal-office assignment addresses, and response setting circuit 5 which controls the making and stopping of an response according to a response permit command from central office 1. Then, central office 1 sends out the response permit command with a specific address and circuit 5 of terminal office 4 determines a response status responding to the command. Next, central office 1 sends a message with all terminal-office assignment addresses and each terminal office 4 receives and stores it in main memory 7 of its own, but a response to central office 1 is made by only a terminal office which is allowed to make a response.
COPYRIGHT: (C)1980,JPO&Japio
JP5030579A 1979-04-25 1979-04-25 Message transmission system Pending JPS55143651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5030579A JPS55143651A (en) 1979-04-25 1979-04-25 Message transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5030579A JPS55143651A (en) 1979-04-25 1979-04-25 Message transmission system

Publications (1)

Publication Number Publication Date
JPS55143651A true JPS55143651A (en) 1980-11-10

Family

ID=12855177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5030579A Pending JPS55143651A (en) 1979-04-25 1979-04-25 Message transmission system

Country Status (1)

Country Link
JP (1) JPS55143651A (en)

Cited By (3)

* 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
JPS59167155A (en) * 1983-03-11 1984-09-20 Hitachi Ltd Retransmission system of simultaneous communication
JPS63214038A (en) * 1987-03-02 1988-09-06 Matsushita Electric Ind Co Ltd Portable terminal equipment data transmitter

Cited By (4)

* 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
JPS59167155A (en) * 1983-03-11 1984-09-20 Hitachi Ltd Retransmission system of simultaneous communication
JPH055210B2 (en) * 1983-03-11 1993-01-21 Hitachi Ltd
JPS63214038A (en) * 1987-03-02 1988-09-06 Matsushita Electric Ind Co Ltd Portable terminal equipment data transmitter

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