ATE50103T1 - Leitungsschaltung fuer schleifenstromzufuehrung an einer zweidraht-telefonteilnehmerleitung. - Google Patents

Leitungsschaltung fuer schleifenstromzufuehrung an einer zweidraht-telefonteilnehmerleitung.

Info

Publication number
ATE50103T1
ATE50103T1 AT85401355T AT85401355T ATE50103T1 AT E50103 T1 ATE50103 T1 AT E50103T1 AT 85401355 T AT85401355 T AT 85401355T AT 85401355 T AT85401355 T AT 85401355T AT E50103 T1 ATE50103 T1 AT E50103T1
Authority
AT
Austria
Prior art keywords
line
amplifier
coupled
gain
input terminal
Prior art date
Application number
AT85401355T
Other languages
English (en)
Inventor
William Thomas Cochran
Original Assignee
Alcatel 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 Alcatel Nv filed Critical Alcatel Nv
Application granted granted Critical
Publication of ATE50103T1 publication Critical patent/ATE50103T1/de

Links

Classifications

    • 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
    • H04M19/005—Feeding arrangements without the use of line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
AT85401355T 1984-07-11 1985-07-04 Leitungsschaltung fuer schleifenstromzufuehrung an einer zweidraht-telefonteilnehmerleitung. ATE50103T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/629,659 US4581487A (en) 1984-07-11 1984-07-11 Universal DC feed for telephone line and trunk circuits
EP85401355A EP0168318B1 (de) 1984-07-11 1985-07-04 Leitungsschaltung für Schleifenstromzuführung an einer Zweidraht-Telefonteilnehmerleitung

Publications (1)

Publication Number Publication Date
ATE50103T1 true ATE50103T1 (de) 1990-02-15

Family

ID=24523931

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85401355T ATE50103T1 (de) 1984-07-11 1985-07-04 Leitungsschaltung fuer schleifenstromzufuehrung an einer zweidraht-telefonteilnehmerleitung.

Country Status (5)

Country Link
US (1) US4581487A (de)
EP (1) EP0168318B1 (de)
AT (1) ATE50103T1 (de)
DE (1) DE3575832D1 (de)
ES (1) ES8700820A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706281A (en) * 1984-04-30 1987-11-10 American Telephone And Telegraph Company Dynamic impedance element for a battery feed circuit
US4685130A (en) * 1985-08-29 1987-08-04 Gte Communication Systems Corporation Subscriber line circuit having an improved loop current supply circuit
CA1257027A (en) * 1987-03-10 1989-07-04 Rolf Meier Compensation circuit for use with an integrating amplifier
CA1268873A (en) * 1987-09-22 1990-05-08 Mihail Stefan Augustin Traian Moisin Line interface circuit
JP2881781B2 (ja) * 1988-11-08 1999-04-12 ローム 株式会社 Ｉｃ化されたダイヤラ回路
US5768367A (en) * 1996-10-17 1998-06-16 Northern Telecom Limited Method and apparatus for removing FSK in-band signaling
US6362467B1 (en) * 1999-10-21 2002-03-26 Infineon Technologies North America Corp. Fast-switching comparator with hysteresis
US7821758B1 (en) * 2006-11-16 2010-10-26 Adtran, Inc. Systems and methods for reducing intermodulation distortion

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE633291A (de) * 1962-03-01
DE1487984A1 (de) * 1966-07-14 1969-03-13 Standard Elek K Lorenz Ag Gleichstromsignalverfahren in Nachrichtenvermittlungsanlagen
US3821486A (en) * 1973-06-22 1974-06-28 Bell Telephone Labor Inc Bridge type supervisory detector with reduced breakdown voltage requirements
NL7903662A (nl) * 1979-05-10 1980-11-12 Philips Nv Lijncircuit.
US4315106A (en) * 1979-11-28 1982-02-09 International Telephone And Telegraph Corporation Apparatus for regulating current supplied to a telephone line signal of the type employed in digital telephone systems
US4387273A (en) * 1980-08-25 1983-06-07 International Telephone And Telegraph Corporation Subscriber line interface circuit with impedance synthesizer
US4317963A (en) * 1980-09-22 1982-03-02 International Telephone And Telegraph Corporation Subscriber line interface circuit utilizing impedance synthesizer and shared voltage source for loop current regulation control
US4419542A (en) * 1982-05-17 1983-12-06 Bell Telephone Laboratories, Incorporated Battery feed circuit
US4514595A (en) * 1982-06-10 1985-04-30 Northern Telecom Limited Active impedance line feed circuit
SE433284B (sv) * 1982-09-17 1984-05-14 Ericsson Telefon Ab L M Anordning for strommatning av en abonnentapparat

Also Published As

Publication number Publication date
DE3575832D1 (de) 1990-03-08
EP0168318A3 (en) 1986-12-30
US4581487A (en) 1986-04-08
EP0168318A2 (de) 1986-01-15
EP0168318B1 (de) 1990-01-31
ES8700820A1 (es) 1986-10-01
ES545071A0 (es) 1986-10-01

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee