DE3575832D1 - Leitungsschaltung fuer schleifenstromzufuehrung an einer zweidraht-telefonteilnehmerleitung. - Google Patents

Leitungsschaltung fuer schleifenstromzufuehrung an einer zweidraht-telefonteilnehmerleitung.

Info

Publication number
DE3575832D1
DE3575832D1 DE8585401355T DE3575832T DE3575832D1 DE 3575832 D1 DE3575832 D1 DE 3575832D1 DE 8585401355 T DE8585401355 T DE 8585401355T DE 3575832 T DE3575832 T DE 3575832T DE 3575832 D1 DE3575832 D1 DE 3575832D1
Authority
DE
Germany
Prior art keywords
line
amplifier
coupled
gain
input 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.)
Expired - Lifetime
Application number
DE8585401355T
Other languages
English (en)
Inventor
William Thomas Cochran
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.)
Alcatel Lucent NV
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 DE3575832D1 publication Critical patent/DE3575832D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
DE8585401355T 1984-07-11 1985-07-04 Leitungsschaltung fuer schleifenstromzufuehrung an einer zweidraht-telefonteilnehmerleitung. Expired - Lifetime DE3575832D1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE3575832D1 true DE3575832D1 (de) 1990-03-08

Family

ID=24523931

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585401355T Expired - Lifetime DE3575832D1 (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
BE624790A (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
US4581487A (en) 1986-04-08
EP0168318A3 (en) 1986-12-30
EP0168318B1 (de) 1990-01-31
EP0168318A2 (de) 1986-01-15
ES8700820A1 (es) 1986-10-01
ES545071A0 (es) 1986-10-01
ATE50103T1 (de) 1990-02-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee