JPS55134422A - Signal transmission system - Google Patents

Signal transmission system

Info

Publication number
JPS55134422A
JPS55134422A JP3985179A JP3985179A JPS55134422A JP S55134422 A JPS55134422 A JP S55134422A JP 3985179 A JP3985179 A JP 3985179A JP 3985179 A JP3985179 A JP 3985179A JP S55134422 A JPS55134422 A JP S55134422A
Authority
JP
Japan
Prior art keywords
signal
unit
connection
signal line
equipment
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
JP3985179A
Other languages
Japanese (ja)
Inventor
Takeshi Fukuhara
Mitsuru Kitazawa
Michio Kagawa
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 JP3985179A priority Critical patent/JPS55134422A/en
Publication of JPS55134422A publication Critical patent/JPS55134422A/en
Pending legal-status Critical Current

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  • Multi Processors (AREA)
  • Information Transfer Systems (AREA)

Abstract

PURPOSE: To perform high-reliability signal transmission by transmitting and receiving a private signal with an individual signal line and another signal line, which is used at the transmission/receiving timing, in the duplex system.
CONSTITUTION: If a connection request to terminal equipment 301 is generated from processing unit 101 through connection request signal line 401 and equipment 301 is idle, connection acceptance enable/diable signal 151 from control circuit 140 is accepted by connection request detection gate 121 and is held in FF131, and simultaneously, a connection response signal is returned to unit 101 through circuit 140. When receiving the response signal, unit 101 transfers information to equipment 301; however, when unit 101 monopolizes equipment 301 during a certain period, unit 101 transmits a signal to signal line 401 and private signal line 601 during the period at a prescribed timing. This signal is detected by private signal detection gate 111, and during this period, FF131 is not reset; and after completion of monopolization, FF131 is reset, and connection control unit 201 becomes a state where new connection requests from units 101W10n can be accepted.
COPYRIGHT: (C)1980,JPO&Japio
JP3985179A 1979-04-04 1979-04-04 Signal transmission system Pending JPS55134422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3985179A JPS55134422A (en) 1979-04-04 1979-04-04 Signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3985179A JPS55134422A (en) 1979-04-04 1979-04-04 Signal transmission system

Publications (1)

Publication Number Publication Date
JPS55134422A true JPS55134422A (en) 1980-10-20

Family

ID=12564460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3985179A Pending JPS55134422A (en) 1979-04-04 1979-04-04 Signal transmission system

Country Status (1)

Country Link
JP (1) JPS55134422A (en)

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