BR9201831A - Circuito de interface eletronico - Google Patents

Circuito de interface eletronico

Info

Publication number
BR9201831A
BR9201831A BR929201831A BR9201831A BR9201831A BR 9201831 A BR9201831 A BR 9201831A BR 929201831 A BR929201831 A BR 929201831A BR 9201831 A BR9201831 A BR 9201831A BR 9201831 A BR9201831 A BR 9201831A
Authority
BR
Brazil
Prior art keywords
current
line
ilim
interface circuit
electronic interface
Prior art date
Application number
BR929201831A
Other languages
English (en)
Inventor
Marco Siligoni
Original Assignee
Sgs Thomson Microelectronics
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 Sgs Thomson Microelectronics filed Critical Sgs Thomson Microelectronics
Publication of BR9201831A publication Critical patent/BR9201831A/pt

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)
  • Telephonic Communication Services (AREA)
  • Communication Control (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Networks Using Active Elements (AREA)
BR929201831A 1991-06-25 1992-05-14 Circuito de interface eletronico BR9201831A (pt)

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 (1)

Publication Number Publication Date
BR9201831A true BR9201831A (pt) 1993-01-12

Family

ID=11360201

Family Applications (1)

Application Number Title Priority Date Filing Date
BR929201831A BR9201831A (pt) 1991-06-25 1992-05-14 Circuito de interface eletronico

Country Status (11)

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

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 (en) 1999-02-10
CA2067535A1 (en) 1992-12-26
CN1030951C (zh) 1996-02-07
EP0520156A3 (pt) 1994-04-06
JPH05153294A (ja) 1993-06-18
DE69228407D1 (de) 1999-03-25
IT1248548B (it) 1995-01-19
KR100277090B1 (ko) 2001-01-15
CA2067535C (en) 2002-02-05
TW201373B (pt) 1993-03-01
DE69228407T2 (de) 1999-06-24
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 (en) 1992-12-30
KR930001636A (ko) 1993-01-16

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Legal Events

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EE Request for examination
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
HO Change of classification

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B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

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B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2606 DE 15-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.