JPS5531359A - Hybrid circuit - Google Patents

Hybrid circuit

Info

Publication number
JPS5531359A
JPS5531359A JP10506278A JP10506278A JPS5531359A JP S5531359 A JPS5531359 A JP S5531359A JP 10506278 A JP10506278 A JP 10506278A JP 10506278 A JP10506278 A JP 10506278A JP S5531359 A JPS5531359 A JP S5531359A
Authority
JP
Japan
Prior art keywords
circuit
signal
wire line
line
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
JP10506278A
Other languages
Japanese (ja)
Inventor
Hiroshi Shimizu
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 JP10506278A priority Critical patent/JPS5531359A/en
Publication of JPS5531359A publication Critical patent/JPS5531359A/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
    • H04B1/586—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 an electronic circuit

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 realize a miniature integration with reduction of folding loss and thus to ensure the high-quality talking by supplying the output of the subtractor circuit and the signals on the 4-wire line of the reception side and then minimizing the ratio between the output level of the subtractor circuit and the signal level on the 4-wire line. CONSTITUTION:Reception signal A supplied from 4-wire line 4 via amplifier 15 is supplied to 2-wire line 1 via passive element 9 as well as transmitted to the positive input terminal (+) of subtractor circuit 11. While transmission signal B sent from line 1 reaches the positive terminal (+) of circuit 11 via passive adder circuit 8. At this instant, the signal level of the positive terminal (+) of circuit 11 features as Z0.A+Zn.B/Z0+Z1, where the impedance of line 1 and element 9 are Z0 and Z1 respectively. On the other hand, if the transmission property of variable transmission circuit 10 is set to Z0/(Z0+Z1) or its approximate property, the output of circuit 11 becomes nearly Z1.B/(Z0+Z1). Thus the folding loss can be minimized for signal A.
JP10506278A 1978-08-28 1978-08-28 Hybrid circuit Pending JPS5531359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10506278A JPS5531359A (en) 1978-08-28 1978-08-28 Hybrid circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10506278A JPS5531359A (en) 1978-08-28 1978-08-28 Hybrid circuit

Publications (1)

Publication Number Publication Date
JPS5531359A true JPS5531359A (en) 1980-03-05

Family

ID=14397473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10506278A Pending JPS5531359A (en) 1978-08-28 1978-08-28 Hybrid circuit

Country Status (1)

Country Link
JP (1) JPS5531359A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148943U (en) * 1981-03-12 1982-09-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148943U (en) * 1981-03-12 1982-09-18

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