JPS5685939A - Electronic hybrid circuit - Google Patents

Electronic hybrid circuit

Info

Publication number
JPS5685939A
JPS5685939A JP16252179A JP16252179A JPS5685939A JP S5685939 A JPS5685939 A JP S5685939A JP 16252179 A JP16252179 A JP 16252179A JP 16252179 A JP16252179 A JP 16252179A JP S5685939 A JPS5685939 A JP S5685939A
Authority
JP
Japan
Prior art keywords
amplifier
output
signal
balance
wire circuit
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
JP16252179A
Other languages
Japanese (ja)
Inventor
Norio Ueno
Seiji Kato
Michinobu Ohata
Koji Mizushima
Masao Yamazawa
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 JP16252179A priority Critical patent/JPS5685939A/en
Publication of JPS5685939A publication Critical patent/JPS5685939A/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/03—Hybrid circuits

Landscapes

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

Abstract

PURPOSE:To simplify the balance network by constituting the circuit so that the output signal of the balance output amplifier for driving the input signal from the four-wire circuit is negated by the input side of the four-wire circuit output driving differential amplifier. CONSTITUTION:A signal from the four-wire circuit 1 becomes a balance output by the amplifier 4, and it is sent out to the two-wire circuit 3 through the matching resistances R8, R9. A signal from the circuit 3 is provided to the differential amplifier 6 through the resistances R1, R2, and subsequently it is output to the four-wire circuit 2 through the differential amplifier 7. A balance output of the amplifier 4 is provided to 6 terminals of the balance network (BNW) 5, it is output from the terminal 9 through the BNW5, and this signal is negated by the signal by which the balance output signal of the amplifier 4 is sent to the amplifier 7 through the amplifier 6. Accordingly, the output signal of the amplifier 4 does not appear as an output signal of the amplifier 7. In this way, it is possible to obtain satisfactory characteristics of the singing attenuation amount and the longitudinal balance attenuation amount, by means of a comparatively simple BNW.
JP16252179A 1979-12-14 1979-12-14 Electronic hybrid circuit Pending JPS5685939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16252179A JPS5685939A (en) 1979-12-14 1979-12-14 Electronic hybrid circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16252179A JPS5685939A (en) 1979-12-14 1979-12-14 Electronic hybrid circuit

Publications (1)

Publication Number Publication Date
JPS5685939A true JPS5685939A (en) 1981-07-13

Family

ID=15756195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16252179A Pending JPS5685939A (en) 1979-12-14 1979-12-14 Electronic hybrid circuit

Country Status (1)

Country Link
JP (1) JPS5685939A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869132A (en) * 1981-10-20 1983-04-25 Nippon Telegr & Teleph Corp <Ntt> Electronic hybrid circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869132A (en) * 1981-10-20 1983-04-25 Nippon Telegr & Teleph Corp <Ntt> Electronic hybrid circuit
JPS6310615B2 (en) * 1981-10-20 1988-03-08 Nippon Telegraph & Telephone

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