FR1484135A - Circuit de ligne pour un système téléphonique - Google Patents

Circuit de ligne pour un système téléphonique

Info

Publication number
FR1484135A
FR1484135A FR66112A FR66112A FR1484135A FR 1484135 A FR1484135 A FR 1484135A FR 66112 A FR66112 A FR 66112A FR 66112 A FR66112 A FR 66112A FR 1484135 A FR1484135 A FR 1484135A
Authority
FR
France
Prior art keywords
telephone system
line circuit
circuit
line
telephone
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.)
Expired
Application number
FR66112A
Other languages
English (en)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR1484135A publication Critical patent/FR1484135A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
    • H04Q3/521—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using semiconductors in the switching stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
FR66112A 1965-10-12 1966-06-20 Circuit de ligne pour un système téléphonique Expired FR1484135A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US495155A US3410961A (en) 1965-10-12 1965-10-12 Line circuit for a telephone system having optical solid state means

Publications (1)

Publication Number Publication Date
FR1484135A true FR1484135A (fr) 1967-06-09

Family

ID=23967474

Family Applications (1)

Application Number Title Priority Date Filing Date
FR66112A Expired FR1484135A (fr) 1965-10-12 1966-06-20 Circuit de ligne pour un système téléphonique

Country Status (9)

Country Link
US (1) US3410961A (fr)
JP (1) JPS4318847B1 (fr)
BE (1) BE682440A (fr)
DE (1) DE1512073B2 (fr)
FR (1) FR1484135A (fr)
GB (1) GB1167741A (fr)
IL (1) IL26035A (fr)
NL (1) NL6613553A (fr)
SE (1) SE339494B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2312893A1 (fr) * 1975-05-29 1976-12-24 Int Standard Electric Corp Dispositif pour coupler des lignes de telecommunications electriques
FR2422296A1 (fr) * 1978-04-03 1979-11-02 Duret Christian Translateur electronique destine a un equipement de ligne d'abonne d'un reseau telephonique du genre spatial a points de connexion electroniques ou du genre temporel et circuit quadripole actif constituant un composant de ce translateur

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534280A (en) * 1966-12-30 1970-10-13 Texas Instruments Inc Opto thermal audio amplifier
US3504131A (en) * 1967-05-02 1970-03-31 Bell Telephone Labor Inc Switching network
US3783198A (en) * 1971-03-18 1974-01-01 Gte Automatic Electric Lab Inc Battery reversal detection
US3750017A (en) * 1971-09-16 1973-07-31 Us Health Electromagnetic field measuring device
BE792984A (fr) * 1971-12-20 1973-04-16 Western Electric Co Circuit de maintien de communication et de supervision
US3767978A (en) * 1972-03-17 1973-10-23 A Wernli Voltage-isolating, keying arrangement for a power-line carrier system
US3819866A (en) * 1972-12-18 1974-06-25 Bell Telephone Labor Inc Light coupled loop current detector
US3867580A (en) * 1972-12-29 1975-02-18 Stromberg Carlson Corp Receiving circuits for digital signal distribution systems
JPS5199408A (fr) * 1975-02-28 1976-09-02 Hitachi Ltd
US4079205A (en) * 1976-02-12 1978-03-14 Cook Electric Company Automatic number identification device
CH599731A5 (fr) * 1976-03-02 1978-05-31 Ibm
US4096363A (en) * 1977-05-24 1978-06-20 Bell Telephone Laboratories, Incorporated Transmission network including flux compensation
IT1159706B (it) * 1978-06-02 1987-03-04 Cselt Centro Studi Lab Telecom Circuito telefonico elettronico di linea d'utente
JPS5940358B2 (ja) * 1978-10-18 1984-09-29 日本電信電話株式会社 通話路スイツチ回路
US4282604A (en) * 1979-04-04 1981-08-04 Jefferson William T Optical isolation circuit for bidirectional communication lines
US4282408A (en) * 1979-10-25 1981-08-04 Western Electric Company, Inc. On-hook/off-hook detector circuit
US4313225A (en) * 1979-11-05 1982-01-26 Bell Telephone Laboratories, Incorporated Opto-isolator hybrid circuit
US4479066A (en) * 1980-03-28 1984-10-23 At&T Bell Laboratories AC/DC Current divider circuit
DE3013533A1 (de) * 1980-04-08 1981-10-15 Siemens Ag Schaltungsanordnung mit einer laserdiode zur uebertragung von nachrichtensiglnalen ueber einen lichtwellenleiter
US4558183A (en) * 1983-10-03 1985-12-10 Cellutron Corporation Opto-coupler interfacing circuit
US4636655A (en) * 1983-11-11 1987-01-13 Kabushiki Kaisha Toshiba Circuit in which output circuit and operational amplifier equipped input circuit are electrically isolated
US4700379A (en) * 1985-12-18 1987-10-13 The Boeing Company Aircraft communications apparatus
US5946393A (en) * 1997-02-10 1999-08-31 Integration Associates, Inc. Data access arrangement
US6788782B1 (en) 2000-01-20 2004-09-07 3Com Corporation Method and apparatus for switching between multiple communication lines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129289A (en) * 1959-06-26 1964-04-14 Itt Electronic line circuit
US3230315A (en) * 1962-06-04 1966-01-18 Itt Two-wire switching system for fourwire circuits
DE1264513C2 (de) * 1963-11-29 1973-01-25 Texas Instruments Inc Bezugspotentialfreier gleichstromdifferenzverstaerker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2312893A1 (fr) * 1975-05-29 1976-12-24 Int Standard Electric Corp Dispositif pour coupler des lignes de telecommunications electriques
FR2422296A1 (fr) * 1978-04-03 1979-11-02 Duret Christian Translateur electronique destine a un equipement de ligne d'abonne d'un reseau telephonique du genre spatial a points de connexion electroniques ou du genre temporel et circuit quadripole actif constituant un composant de ce translateur

Also Published As

Publication number Publication date
NL6613553A (fr) 1967-04-13
GB1167741A (en) 1969-10-22
DE1512073B2 (de) 1971-09-30
IL26035A (en) 1970-09-17
US3410961A (en) 1968-11-12
BE682440A (fr) 1966-11-14
JPS4318847B1 (fr) 1968-08-16
SE339494B (fr) 1971-10-11
DE1512073A1 (de) 1969-06-19

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