FR2456430A1 - Terminal de circuit a quatre fils - Google Patents

Terminal de circuit a quatre fils

Info

Publication number
FR2456430A1
FR2456430A1 FR8010457A FR8010457A FR2456430A1 FR 2456430 A1 FR2456430 A1 FR 2456430A1 FR 8010457 A FR8010457 A FR 8010457A FR 8010457 A FR8010457 A FR 8010457A FR 2456430 A1 FR2456430 A1 FR 2456430A1
Authority
FR
France
Prior art keywords
transformer
wire
gate
operational amplifier
circuit terminal
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
FR8010457A
Other languages
English (en)
Other versions
FR2456430B1 (fr
Inventor
Klaus Dieter Karl Brockmann
Teunis Arno Van Harreveld
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 FR2456430A1 publication Critical patent/FR2456430A1/fr
Application granted granted Critical
Publication of FR2456430B1 publication Critical patent/FR2456430B1/fr
Granted 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

Landscapes

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

Abstract

TERMINAL DE CIRCUIT A QUATRE FILS POUR LE COUPLAGE D'UNE PORTE A DEUX FILS AVEC LA PORTE D'EMISSION ET LA PORTE DE RECEPTION D'UNE VOIE DE TRANSMISSION A QUTRE FILS, COMPORTANT UN TRANSFORMATEUR. LES TRANSFORMATEURS HABITUELS SONT TRES ENCOMBRANTS. DANS LA DEMANDE DE BREVET EST DECRITE UNE COMBINAISON D'UN AMPLIFICATEUR OPERATIONNEL ET D'UN TRANSFORMATEUR (PEU ENCOMBRANT). L'AMPLIFICATEUR OPERATIONNEL EST CONNECTE EN REACTION PAR L'INTERMEDIAIRE DU TRANSFORMATEUR. LA PORTE A DEUX FILS EST CONNECTEE A UN ENROULEMENT DU TRANSFORMATEUR. LA PORTE DE RECEPTION EST CONNECTEE A UNE ENTREE DE L'AMPLIFICATEUR OPERATIONNEL. PAR UNE COMBINAISON D'UNE IMPEDANCE D'EQUILIBRAGE ET D'UN ENROULEMENT, ON OBTIENT UNE PORTE D'EMISSION DECOUPLEE. APPLICATION AUX CIRCUITS DE LIGNES DE CENTRAUX TELEPHONIQUES AUTOMATIQUES.
FR8010457A 1979-05-11 1980-05-09 Terminal de circuit a quatre fils Granted FR2456430A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7903709A NL7903709A (nl) 1979-05-11 1979-05-11 Vorkschakeling.

Publications (2)

Publication Number Publication Date
FR2456430A1 true FR2456430A1 (fr) 1980-12-05
FR2456430B1 FR2456430B1 (fr) 1983-05-06

Family

ID=19833158

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8010457A Granted FR2456430A1 (fr) 1979-05-11 1980-05-09 Terminal de circuit a quatre fils

Country Status (11)

Country Link
US (1) US4346266A (fr)
JP (1) JPS55158742A (fr)
AU (1) AU530393B2 (fr)
BE (1) BE883232A (fr)
CA (1) CA1155937A (fr)
DE (1) DE3017568C2 (fr)
FR (1) FR2456430A1 (fr)
GB (1) GB2050772B (fr)
IT (1) IT1194651B (fr)
NL (1) NL7903709A (fr)
SE (1) SE441560B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143616A2 (fr) * 1983-11-29 1985-06-05 Northern Telecom Limited Circuit hybride

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230886A1 (de) * 1982-08-19 1984-02-23 Siemens AG, 1000 Berlin und 8000 München Aktive gabelschaltung mit geringer verlustleistung
US4615044A (en) * 1983-09-29 1986-09-30 Killion William D Interface between video cassette player and television receiver
JPH066636Y2 (ja) * 1984-02-03 1994-02-16 三洋電機株式会社 電源搬送式リモコン装置
CA1233531A (fr) * 1985-09-16 1988-03-01 Mumtaz B. Gawargy Circuit electronique hybride
JPS6390091U (fr) * 1986-12-01 1988-06-11
JPH01219386A (ja) * 1988-02-26 1989-09-01 Matsushita Refrig Co Ltd 空気調和機用ドレーンポンプ
JPH0823356B2 (ja) * 1988-12-16 1996-03-06 株式会社日立製作所 電気洗濯機用排水ポンプ
DE4142299C2 (de) * 1991-12-20 1998-08-27 Kommunikations Elektronik Gabelschaltung zur Verbindung einer Zweidrahtleitung mit einer Vierdrahtleitung
US5369355A (en) * 1992-11-12 1994-11-29 B/E Aerospace Compensation circuit for transformer linearization
ATE343872T1 (de) * 2001-03-15 2006-11-15 Cit Alcatel Hybridschaltung für breitbandmodem

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480742A (en) * 1967-03-31 1969-11-25 Bell Telephone Labor Inc Hybrid circuit
DE2137201A1 (de) * 1971-07-24 1973-02-01 Licentia Gmbh Gabelschaltung fuer die verzweigung einer gemeinsamen leitung auf eine ankommende und eine abgehende leitung, wobei die ankommende und die abgehende leitung an eine gemeinsame bezugsspannung angeschlossen sind, insbesondere fuer personenrufanlagen
US3751602A (en) * 1971-08-13 1973-08-07 Bell Telephone Labor Inc Loudspeaking telephone
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143616A2 (fr) * 1983-11-29 1985-06-05 Northern Telecom Limited Circuit hybride
EP0143616A3 (fr) * 1983-11-29 1986-06-04 Northern Telecom Limited Circuit hybride

Also Published As

Publication number Publication date
SE441560B (sv) 1985-10-14
BE883232A (fr) 1980-11-10
US4346266A (en) 1982-08-24
GB2050772B (en) 1983-06-08
AU530393B2 (en) 1983-07-14
NL7903709A (nl) 1980-11-13
JPS6342890B2 (fr) 1988-08-26
FR2456430B1 (fr) 1983-05-06
AU5811980A (en) 1980-11-13
SE8003447L (sv) 1980-11-12
DE3017568C2 (de) 1984-10-31
IT8021901A0 (it) 1980-05-08
GB2050772A (en) 1981-01-07
JPS55158742A (en) 1980-12-10
IT1194651B (it) 1988-09-22
CA1155937A (fr) 1983-10-25
DE3017568A1 (de) 1980-11-13

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Legal Events

Date Code Title Description
ST Notification of lapse