DE69228407T2 - Strombegrenzte Teilnehmerschnittstellenschaltung - Google Patents

Strombegrenzte Teilnehmerschnittstellenschaltung

Info

Publication number
DE69228407T2
DE69228407T2 DE69228407T DE69228407T DE69228407T2 DE 69228407 T2 DE69228407 T2 DE 69228407T2 DE 69228407 T DE69228407 T DE 69228407T DE 69228407 T DE69228407 T DE 69228407T DE 69228407 T2 DE69228407 T2 DE 69228407T2
Authority
DE
Germany
Prior art keywords
current
interface circuit
line
ilim
subscriber interface
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 - Fee Related
Application number
DE69228407T
Other languages
English (en)
Other versions
DE69228407D1 (de
Inventor
Marco Siligoni
Vanni Saviotti
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.)
STMicroelectronics SRL
Original Assignee
STMicroelectronics SRL
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 STMicroelectronics SRL filed Critical STMicroelectronics SRL
Publication of DE69228407D1 publication Critical patent/DE69228407D1/de
Application granted granted Critical
Publication of DE69228407T2 publication Critical patent/DE69228407T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • 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)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Communication Control (AREA)
  • Networks Using Active Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephonic Communication Services (AREA)
DE69228407T 1991-06-25 1992-04-27 Strombegrenzte Teilnehmerschnittstellenschaltung Expired - Fee Related DE69228407T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI911747A IT1248548B (it) 1991-06-25 1991-06-25 Circuito elettronico d'interfaccia d'utente, con limitazione di corrente, a caratteristica tensione-corrente bilanciata fuori limitazione e sbilanciata in limitazione.

Publications (2)

Publication Number Publication Date
DE69228407D1 DE69228407D1 (de) 1999-03-25
DE69228407T2 true DE69228407T2 (de) 1999-06-24

Family

ID=11360201

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69228407T Expired - Fee Related DE69228407T2 (de) 1991-06-25 1992-04-27 Strombegrenzte Teilnehmerschnittstellenschaltung

Country Status (11)

Country Link
US (1) US5315653A (de)
EP (1) EP0520156B1 (de)
JP (1) JP3219839B2 (de)
KR (1) KR100277090B1 (de)
CN (1) CN1030951C (de)
AT (1) ATE176745T1 (de)
BR (1) BR9201831A (de)
CA (1) CA2067535C (de)
DE (1) DE69228407T2 (de)
IT (1) IT1248548B (de)
TW (1) TW201373B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4412811A1 (de) * 1994-04-14 1995-10-19 Philips Patentverwaltung Vermittlungsvorrichtung mit einer Speiseschaltung zur Gleichstromversorgung eines Teilnehmerendgeräts
KR20050091524A (ko) * 2004-03-12 2005-09-15 주식회사 대우일렉트로닉스 콤보 시스템의 메모리 카드 인식 방법
US7925005B2 (en) * 2006-10-23 2011-04-12 Silicon Laboratories, Inc. Longitudinal balance calibration for a subscriber line interface circuit
US8363822B2 (en) * 2009-08-07 2013-01-29 Microsemi Semiconductor (U.S.) Inc. Method and apparatus for battery switching during ringing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485341A (en) * 1982-07-28 1984-11-27 Motorola, Inc. Current limiter circuit
CA1209732A (en) * 1984-03-12 1986-08-12 Stanley D. Rosenbaum Active impedance line feed circuit with improved ground fault protection
IT1214603B (it) * 1985-04-30 1990-01-18 Ates Componenti Elettron Circuito telefonico, integrabile monoliticamente, perl'alimentazione di una linea telefonica d'utente.
AU574277B2 (en) * 1985-08-20 1988-06-30 Fujitsu Limited Subscriber line interface circuit

Also Published As

Publication number Publication date
EP0520156B1 (de) 1999-02-10
CA2067535A1 (en) 1992-12-26
CN1030951C (zh) 1996-02-07
EP0520156A3 (de) 1994-04-06
JPH05153294A (ja) 1993-06-18
BR9201831A (pt) 1993-01-12
DE69228407D1 (de) 1999-03-25
IT1248548B (it) 1995-01-19
KR100277090B1 (ko) 2001-01-15
CA2067535C (en) 2002-02-05
TW201373B (de) 1993-03-01
ITMI911747A0 (it) 1991-06-25
JP3219839B2 (ja) 2001-10-15
ATE176745T1 (de) 1999-02-15
CN1068460A (zh) 1993-01-27
ITMI911747A1 (it) 1992-12-25
US5315653A (en) 1994-05-24
EP0520156A2 (de) 1992-12-30
KR930001636A (ko) 1993-01-16

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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