FR2426365A1 - Circuit hybride pour une liaison deux-quatre fils a reglage automatique - Google Patents

Circuit hybride pour une liaison deux-quatre fils a reglage automatique

Info

Publication number
FR2426365A1
FR2426365A1 FR7912732A FR7912732A FR2426365A1 FR 2426365 A1 FR2426365 A1 FR 2426365A1 FR 7912732 A FR7912732 A FR 7912732A FR 7912732 A FR7912732 A FR 7912732A FR 2426365 A1 FR2426365 A1 FR 2426365A1
Authority
FR
France
Prior art keywords
hybrid circuit
automatically adjusted
wire automatically
adjusted link
subscriber line
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.)
Granted
Application number
FR7912732A
Other languages
English (en)
Other versions
FR2426365B1 (fr
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2426365A1 publication Critical patent/FR2426365A1/fr
Application granted granted Critical
Publication of FR2426365B1 publication Critical patent/FR2426365B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • 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
    • H04B1/582—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 with automatic balancing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/005—Interface circuits for subscriber lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

Ce circuit hybride pour transformer une liaison deux fils, telle qu'une ligne d'abonné au téléphone, en une liaison quatre fils comporte un circuit d'équilibrage adapté automatiquement à l'impédance de la ligne abonné en utilisant le courant de boucle de la ligne. Application : alimentation en courant continu d'une ligne d'abonné au téléphone.
FR7912732A 1978-05-19 1979-05-18 Circuit hybride pour une liaison deux-quatre fils a reglage automatique Granted FR2426365A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7805416BA NL7805416A (nl) 1978-05-19 1978-05-19 Zelf-instellende vorkschakeling.

Publications (2)

Publication Number Publication Date
FR2426365A1 true FR2426365A1 (fr) 1979-12-14
FR2426365B1 FR2426365B1 (fr) 1984-04-20

Family

ID=19830865

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912732A Granted FR2426365A1 (fr) 1978-05-19 1979-05-18 Circuit hybride pour une liaison deux-quatre fils a reglage automatique

Country Status (10)

Country Link
US (1) US4297536A (fr)
JP (1) JPS54152838A (fr)
AU (1) AU522349B2 (fr)
BE (1) BE876333A (fr)
CA (1) CA1137665A (fr)
DE (1) DE2919652C2 (fr)
FR (1) FR2426365A1 (fr)
GB (1) GB2021362B (fr)
NL (1) NL7805416A (fr)
SE (1) SE438758B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5733844A (en) * 1980-08-08 1982-02-24 Toshiba Corp Echo cancelling device
SE450677B (sv) * 1982-04-01 1987-07-13 Ericsson Telefon Ab L M Matningskrets ingaende i en likstromsmagnetiserad gaffeltransformator
SE426127B (sv) * 1981-04-24 1982-12-06 Ericsson Telefon Ab L M Likstromsmagnetiserad gaffeltransformator
JPS5853233A (ja) * 1981-09-25 1983-03-29 Fujitsu Ltd 平衡結線網整合方式
DE3533762A1 (de) * 1985-09-21 1987-04-02 Ant Nachrichtentech Schaltungsanordnung zum anschluss eines teilnehmerendgeraetes an teilnehmeranschlussleitung
US5271060A (en) * 1990-01-12 1993-12-14 Codex Corporation Circuitry for interfacing telecommunications equipment to a communication channel
US8204094B2 (en) * 2009-04-21 2012-06-19 Innova, Inc. Scalable, efficient laser systems
WO2016003331A1 (fr) * 2014-07-01 2016-01-07 Telefonaktiebolaget L M Ericsson (Publ) Circuit de transformateur différentiel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2387269A (en) * 1942-10-24 1945-10-23 Bell Telephone Labor Inc Telephone system
GB1115216A (en) * 1967-02-28 1968-05-29 Standard Telephones Cables Ltd Hybrid transformer
FR1573659A (fr) * 1967-07-18 1969-07-04
DE2649351A1 (de) * 1975-05-09 1978-05-03 Frank Stuart Boxall Direkt gekoppelte, transformatorlose gabelschaltung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1249948B (de) * 1967-09-14 Siemens Aktiengesellschaft, Berlin und München, München Schaltungsanordnung zum vierdrahtmäßigen Zusammenschalten von Leitungsabschnitten in Fernmelde-, insbesondere Fernsprechanlagen
US2302374A (en) * 1941-02-25 1942-11-17 Bell Telephone Labor Inc Two-way signal transmission system
NL269763A (fr) * 1960-09-30
US3178521A (en) * 1962-11-15 1965-04-13 Bell Telephone Labor Inc Dynamically balanced telephone network
FR2160308B1 (fr) * 1971-11-19 1977-01-28 Labo Cent Telecommunicat
US3875350A (en) * 1973-11-05 1975-04-01 Gte Automatic Electric Lab Inc Self-balancing hybrid circuit
US4150260A (en) * 1975-06-18 1979-04-17 Hitachi, Ltd. Subscriber's circuit for four-wire-system local switch
DE2714803B1 (de) * 1977-04-02 1978-08-03 Standard Elek K Lorenz Ag Gabelschaltung zur Zweidraht-Vollduplexuebertragung von Digitalsignalen
US4103118A (en) * 1977-05-02 1978-07-25 Synanon Foundation, Inc. Autobalance hybrid circuit
US4096362A (en) * 1977-06-20 1978-06-20 Bell Telephone Laboratories, Incorporated Automatic cable balancing network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2387269A (en) * 1942-10-24 1945-10-23 Bell Telephone Labor Inc Telephone system
GB1115216A (en) * 1967-02-28 1968-05-29 Standard Telephones Cables Ltd Hybrid transformer
FR1573659A (fr) * 1967-07-18 1969-07-04
DE2649351A1 (de) * 1975-05-09 1978-05-03 Frank Stuart Boxall Direkt gekoppelte, transformatorlose gabelschaltung

Also Published As

Publication number Publication date
CA1137665A (fr) 1982-12-14
AU4709179A (en) 1979-11-22
AU522349B2 (en) 1982-05-27
US4297536A (en) 1981-10-27
SE7904303L (sv) 1979-11-20
JPS54152838A (en) 1979-12-01
DE2919652C2 (de) 1986-05-07
FR2426365B1 (fr) 1984-04-20
DE2919652A1 (de) 1979-11-22
GB2021362A (en) 1979-11-28
SE438758B (sv) 1985-04-29
GB2021362B (en) 1982-08-25
BE876333A (fr) 1979-11-19
NL7805416A (nl) 1979-11-21

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Legal Events

Date Code Title Description
ST Notification of lapse