JPS5593363A - Twoowire vs* fourrwire communication line circuit - Google Patents

Twoowire vs* fourrwire communication line circuit

Info

Publication number
JPS5593363A
JPS5593363A JP17396679A JP17396679A JPS5593363A JP S5593363 A JPS5593363 A JP S5593363A JP 17396679 A JP17396679 A JP 17396679A JP 17396679 A JP17396679 A JP 17396679A JP S5593363 A JPS5593363 A JP S5593363A
Authority
JP
Japan
Prior art keywords
twoowire
fourrwire
communication line
line circuit
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
JP17396679A
Other languages
Japanese (ja)
Inventor
Supensaa Aanorudo Jiyon
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.)
Plessey Handel und Investments AG
Original Assignee
Plessey Handel und Investments AG
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 Plessey Handel und Investments AG filed Critical Plessey Handel und Investments AG
Publication of JPS5593363A publication Critical patent/JPS5593363A/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
    • H04B1/581—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 a transformer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP17396679A 1978-12-30 1979-12-27 Twoowire vs* fourrwire communication line circuit Pending JPS5593363A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7850384A GB2042848B (en) 1978-12-30 1978-12-30 Line current feed and hybrid arrangement (sytem x)

Publications (1)

Publication Number Publication Date
JPS5593363A true JPS5593363A (en) 1980-07-15

Family

ID=10502016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17396679A Pending JPS5593363A (en) 1978-12-30 1979-12-27 Twoowire vs* fourrwire communication line circuit

Country Status (11)

Country Link
JP (1) JPS5593363A (en)
AU (1) AU5323179A (en)
BR (1) BR7907891A (en)
DE (1) DE2952259A1 (en)
FR (1) FR2445666A1 (en)
GB (1) GB2042848B (en)
IE (1) IE48895B1 (en)
NL (1) NL7909148A (en)
NZ (1) NZ192462A (en)
SE (1) SE7910670L (en)
ZA (1) ZA796287B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007791A1 (en) * 1980-02-29 1981-09-10 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR INCREASING THE INDUCTIVITY OF A TRANSMITTER
EP0063414B1 (en) * 1981-04-06 1988-08-10 Northern Telecom Limited Apparatus for coupling signals to or from a two-wire line
DE3138726A1 (en) * 1981-09-29 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Subscriber connection circuit for connecting two-wire subscriber connection lines to a four-wire through-connecting digital time division multiplex exchange
FR2552288B1 (en) * 1983-09-15 1989-03-24 Telecommunications Sa TELEPHONE SUBSCRIBER
US4595802A (en) * 1983-11-29 1986-06-17 Northern Telecom Limited Hybrid circuit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2063475A5 (en) * 1969-10-17 1971-07-09 Labo Cent Telecommunicat
FR2131038A5 (en) * 1971-03-30 1972-11-10 Ass Ouvriers Instr Preci
FR2166696A5 (en) * 1972-01-04 1973-08-17 Ass Ouvriers Instr Preci
US3955052A (en) * 1974-11-18 1976-05-04 Tadiran Israel Electronics Industries Ltd. Subscriber unit particularly useful for time-division-multiplex system

Also Published As

Publication number Publication date
SE7910670L (en) 1980-07-01
NL7909148A (en) 1980-07-02
GB2042848B (en) 1983-01-06
IE48895B1 (en) 1985-06-12
DE2952259A1 (en) 1980-07-17
AU5323179A (en) 1980-07-03
ZA796287B (en) 1980-11-26
GB2042848A (en) 1980-09-24
FR2445666B1 (en) 1984-10-12
FR2445666A1 (en) 1980-07-25
NZ192462A (en) 1982-05-25
BR7907891A (en) 1980-07-29
IE792528L (en) 1980-06-30

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