JPS57120147A - Signal transmission system - Google Patents

Signal transmission system

Info

Publication number
JPS57120147A
JPS57120147A JP56005949A JP594981A JPS57120147A JP S57120147 A JPS57120147 A JP S57120147A JP 56005949 A JP56005949 A JP 56005949A JP 594981 A JP594981 A JP 594981A JP S57120147 A JPS57120147 A JP S57120147A
Authority
JP
Japan
Prior art keywords
same time
circuit
termination
circuits
output
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
JP56005949A
Other languages
Japanese (ja)
Inventor
Kyoichi Iwasa
Toshinori Mori
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP56005949A priority Critical patent/JPS57120147A/en
Publication of JPS57120147A publication Critical patent/JPS57120147A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38Information transfer, e.g. on bus
    • G06F13/40Bus structure
    • G06F13/4063Device-to-bus coupling
    • G06F13/4068Electrical coupling
    • G06F13/4072Drivers or receivers

Abstract

PURPOSE:To realize the transmission of an asynchronous series multiplied signal with N:1 bus connection, by reducing the waveform distortion noise according to the matching termination of branch lines and at the same time constituting a transmitting circuit so as to release an output during pause of transferring to prevent the disturbance to the data under the transfering. CONSTITUTION:A branching device is inserted to each branch point of the bus connection to have the matching termination. Thus the waveform distortion noise is reduced to increase the transfer speed of data. At the same time, each transmitting circuit which transmits the balanced signal is constituted so as to release the output when the data is not transferred and when the power supply voltage is applied and cut off. For instance, the transmitting circuits 1-4 are connected to the branching devices 13-15 via the corresponding AC supply circuits 5-8 and branch transmission lines 9-12; and at the same time the termination resistances 16-19 are added to the output of the circuits 1-4. Then the devices 13-15 are connected via a main transmission lines 20- 21, and the other end of the branching device 15 is connected successively to a main transmission line 22, an AC coupling circuit 23 and a receiving circuit 24 in that order. At the same time, a termination resistance 25 is added to the input of the circuit 24.
JP56005949A 1981-01-20 1981-01-20 Signal transmission system Pending JPS57120147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56005949A JPS57120147A (en) 1981-01-20 1981-01-20 Signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56005949A JPS57120147A (en) 1981-01-20 1981-01-20 Signal transmission system

Publications (1)

Publication Number Publication Date
JPS57120147A true JPS57120147A (en) 1982-07-27

Family

ID=11625139

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56005949A Pending JPS57120147A (en) 1981-01-20 1981-01-20 Signal transmission system

Country Status (1)

Country Link
JP (1) JPS57120147A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6172517B1 (en) 1993-12-28 2001-01-09 Hitachi, Ltd. Signal transmitting device, circuit block and integrated circuit suited to fast signal transmission

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6172517B1 (en) 1993-12-28 2001-01-09 Hitachi, Ltd. Signal transmitting device, circuit block and integrated circuit suited to fast signal transmission
US6420900B2 (en) 1993-12-28 2002-07-16 Hitachi, Ltd. Semiconductor memory
US6441639B1 (en) 1993-12-28 2002-08-27 Hitachi, Ltd Circuit module connected to a transmission line including arrangement to suppress reflections at a branch point of the transmission line
US6873179B2 (en) 1993-12-28 2005-03-29 Hitachi, Ltd. Signal transmitting device suited to fast signal transmission
US7015717B2 (en) 1993-12-28 2006-03-21 Hitachi, Ltd. Signal transmitting device suited to fast signal transmission
US7123048B2 (en) 1993-12-28 2006-10-17 Hitachi, Ltd. Signal transmitting device suited to fast signal transmission
US7295034B2 (en) 1993-12-28 2007-11-13 Hitachi, Ltd. Signal transmitting device suited to fast signal transmission
US7372292B2 (en) 1993-12-28 2008-05-13 Hitachi, Ltd. Signal transmitting device suited to fast signal transmission
US7911224B2 (en) 1993-12-28 2011-03-22 Hitachi, Ltd. Signal transmitting device suited to fast signal transmission
US8106677B2 (en) 1993-12-28 2012-01-31 Lg Electronics Inc. Signal transmitting device suited to fast signal transmission

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