JPS5597743A - Two-wire two-way transmission system - Google Patents

Two-wire two-way transmission system

Info

Publication number
JPS5597743A
JPS5597743A JP627679A JP627679A JPS5597743A JP S5597743 A JPS5597743 A JP S5597743A JP 627679 A JP627679 A JP 627679A JP 627679 A JP627679 A JP 627679A JP S5597743 A JPS5597743 A JP S5597743A
Authority
JP
Japan
Prior art keywords
circuit
communication line
wire
output
wire communication
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
JP627679A
Other languages
Japanese (ja)
Inventor
Fumio Kanetani
Hiroshi Kodera
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 JP627679A priority Critical patent/JPS5597743A/en
Publication of JPS5597743A publication Critical patent/JPS5597743A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/588—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using sampling gates

Abstract

PURPOSE:To simplify IC-implementation and also to increase transmission efficiency, by providing a two-wire/four-wire converter driven by a sampling pulse. CONSTITUTION:An input signal arriving from four-wire communication line 2 is sampled by sampling circuit 3, the output of which is led to the input circuit of differential amplifier 4. The output of differential amplifier 4 is led to two-wire communication line 1 through matching circuit 5. The sum of a signal appearing at two- wire communication line 1, i.e. that sent out from matching circuit 5 and an arrival signal from a party office to the two-wire communication line is inputted to differential amplifier 7, whose output is supplied to sample holding circuit 8. The read output of the sample holding circuit is sent out to four-wire communication line 2' via driver circuit 9. One output of pulse generating circuit 11 is supplied to sampling circuit 3 while the other is sent to sample holding circuit 8 by way of phase shifting circuit 12.
JP627679A 1979-01-22 1979-01-22 Two-wire two-way transmission system Pending JPS5597743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP627679A JPS5597743A (en) 1979-01-22 1979-01-22 Two-wire two-way transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP627679A JPS5597743A (en) 1979-01-22 1979-01-22 Two-wire two-way transmission system

Publications (1)

Publication Number Publication Date
JPS5597743A true JPS5597743A (en) 1980-07-25

Family

ID=11633876

Family Applications (1)

Application Number Title Priority Date Filing Date
JP627679A Pending JPS5597743A (en) 1979-01-22 1979-01-22 Two-wire two-way transmission system

Country Status (1)

Country Link
JP (1) JPS5597743A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007149555A (en) * 2005-11-29 2007-06-14 Toppan Forms Co Ltd Static charge eliminator
KR20190109517A (en) 2017-02-03 2019-09-25 히다치 조센 가부시키가이샤 Nozzle type electron beam irradiation device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007149555A (en) * 2005-11-29 2007-06-14 Toppan Forms Co Ltd Static charge eliminator
KR20190109517A (en) 2017-02-03 2019-09-25 히다치 조센 가부시키가이샤 Nozzle type electron beam irradiation device

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