JPS5523683A - Bidirectional relay unit - Google Patents

Bidirectional relay unit

Info

Publication number
JPS5523683A
JPS5523683A JP9708078A JP9708078A JPS5523683A JP S5523683 A JPS5523683 A JP S5523683A JP 9708078 A JP9708078 A JP 9708078A JP 9708078 A JP9708078 A JP 9708078A JP S5523683 A JPS5523683 A JP S5523683A
Authority
JP
Japan
Prior art keywords
output
amplifiers
input
circuits
wire type
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
JP9708078A
Other languages
Japanese (ja)
Inventor
Kanehisa Kobayashi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP9708078A priority Critical patent/JPS5523683A/en
Publication of JPS5523683A publication Critical patent/JPS5523683A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To make easy the communication between two wire type circuits by means of the bidirecrional amplifying circuit and addition circuit, by reducing the space of the circuit components and constituting the integrated operational amplifiers through the simple circuit constitution. CONSTITUTION:In performing bidirectional relay through the mutual connection of two wire type circuits so that simultaneous transmission and reception between a plurality of two wire type circuits, the input and output terminals TM 1 to TM 3 connecting the two wire type circuits and the second operational amplifiers IC11, IC21 and IC31 taking the first operational amplifiers IC 12, IC 22, IC 23 having the output terminals are provided. Further, the output of the amplifiers is connected to the input terminals, and the terminals TM 1 to TM 5 as output are provided. Further, the addition circuit IC 41 in which the common output of the amplifiers IC 12, IC 22 and IC 32 as input and feeds the output to the input of the amplifiers IC 11, IC 21 and IC 31, is provided, and those circuits are integrated to make easy the communication between the two wire circuits.
JP9708078A 1978-08-08 1978-08-08 Bidirectional relay unit Pending JPS5523683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9708078A JPS5523683A (en) 1978-08-08 1978-08-08 Bidirectional relay unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9708078A JPS5523683A (en) 1978-08-08 1978-08-08 Bidirectional relay unit

Publications (1)

Publication Number Publication Date
JPS5523683A true JPS5523683A (en) 1980-02-20

Family

ID=14182656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9708078A Pending JPS5523683A (en) 1978-08-08 1978-08-08 Bidirectional relay unit

Country Status (1)

Country Link
JP (1) JPS5523683A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62257223A (en) * 1986-04-30 1987-11-09 Fuji Facom Corp Transmission/recpetion signal branch circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62257223A (en) * 1986-04-30 1987-11-09 Fuji Facom Corp Transmission/recpetion signal branch circuit
JPH0379893B2 (en) * 1986-04-30 1991-12-20 Fuji Facom Corp

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