JPS5696562A - Connection circuit for transmission line - Google Patents

Connection circuit for transmission line

Info

Publication number
JPS5696562A
JPS5696562A JP17299479A JP17299479A JPS5696562A JP S5696562 A JPS5696562 A JP S5696562A JP 17299479 A JP17299479 A JP 17299479A JP 17299479 A JP17299479 A JP 17299479A JP S5696562 A JPS5696562 A JP S5696562A
Authority
JP
Japan
Prior art keywords
signal
output
transmission
transmission line
transmission path
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
JP17299479A
Other languages
Japanese (ja)
Inventor
Yoshitaka Hiratsuka
Hiroshi Kubo
Hitoshi Matsumoto
Hajime Saito
Kozo Matsumoto
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 JP17299479A priority Critical patent/JPS5696562A/en
Publication of JPS5696562A publication Critical patent/JPS5696562A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1461—Suppression of signals in the return path, i.e. bidirectional control circuits

Abstract

PURPOSE:To ensure blocking operation of uncoming of stray current and to make unnecessary the transmission path for control signal, by interrupting the reverse signal based on the transmission signal to other transmission path in a computer system. CONSTITUTION:When the control signal from a transmission path BUS1 is transmitted as L, the output of a NAND circuit ND1 is at L, and the output of ND2 is at H, which is delivered to BUS2 via a driver DV2 as L signal. At the same time, the output of ND2 is fed to an AND circuit AD via an inverter INV3, and the L signal via a receiver RV2 is interrupted at AD. Similarly, when the control signal of BUS2 is transmitted to BUS1, ND1 is interrupted with the output of INV2. Thus, stray-in of the reverse signal based on the transmission signal from one transmission line is blocked.
JP17299479A 1979-12-28 1979-12-28 Connection circuit for transmission line Pending JPS5696562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17299479A JPS5696562A (en) 1979-12-28 1979-12-28 Connection circuit for transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17299479A JPS5696562A (en) 1979-12-28 1979-12-28 Connection circuit for transmission line

Publications (1)

Publication Number Publication Date
JPS5696562A true JPS5696562A (en) 1981-08-04

Family

ID=15952205

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17299479A Pending JPS5696562A (en) 1979-12-28 1979-12-28 Connection circuit for transmission line

Country Status (1)

Country Link
JP (1) JPS5696562A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5925450A (en) * 1982-07-31 1984-02-09 Sharp Corp In-line data communication device
JPS60152153A (en) * 1984-01-19 1985-08-10 Seiichi Miyazaki Bi-directional repeater
JPS60144351U (en) * 1984-03-05 1985-09-25 横河電機株式会社 regenerative repeater
JPS6113722A (en) * 1984-06-29 1986-01-22 Fuji Electric Co Ltd Signal transmitter device
JPS6421690A (en) * 1987-07-17 1989-01-25 Toshiba Corp Processor for portable medium
JPH02222236A (en) * 1989-02-22 1990-09-05 Matsushita Electric Ind Co Ltd Communication equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50103917A (en) * 1974-01-16 1975-08-16
JPS5350606A (en) * 1976-10-19 1978-05-09 Okura Denki Co Ltd Pulse repeater system for bilateral transmission line
JPS54129845A (en) * 1978-03-31 1979-10-08 Hitachi Ltd Buffer unit for bidirectional data line

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50103917A (en) * 1974-01-16 1975-08-16
JPS5350606A (en) * 1976-10-19 1978-05-09 Okura Denki Co Ltd Pulse repeater system for bilateral transmission line
JPS54129845A (en) * 1978-03-31 1979-10-08 Hitachi Ltd Buffer unit for bidirectional data line

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5925450A (en) * 1982-07-31 1984-02-09 Sharp Corp In-line data communication device
JPS60152153A (en) * 1984-01-19 1985-08-10 Seiichi Miyazaki Bi-directional repeater
JPS60144351U (en) * 1984-03-05 1985-09-25 横河電機株式会社 regenerative repeater
JPS6113722A (en) * 1984-06-29 1986-01-22 Fuji Electric Co Ltd Signal transmitter device
JPS6421690A (en) * 1987-07-17 1989-01-25 Toshiba Corp Processor for portable medium
JPH02222236A (en) * 1989-02-22 1990-09-05 Matsushita Electric Ind Co Ltd Communication equipment

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