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BR9007984A - Processo e circuito para alimentar corrente a uma linha telefonica - Google Patents

Processo e circuito para alimentar corrente a uma linha telefonica

Info

Publication number
BR9007984A
BR9007984A BR909007984A BR9007984A BR9007984A BR 9007984 A BR9007984 A BR 9007984A BR 909007984 A BR909007984 A BR 909007984A BR 9007984 A BR9007984 A BR 9007984A BR 9007984 A BR9007984 A BR 9007984A
Authority
BR
Brazil
Prior art keywords
circuit
power supply
telephone line
telephone
line
Prior art date
Application number
BR909007984A
Other languages
English (en)
Inventor
Bengt Gustav Lofmark
Jan Ored Hakan Oredsson
Claes Johan Anders Lindberg
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR9007984A publication Critical patent/BR9007984A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • 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)
  • Devices For Supply Of Signal Current (AREA)
  • Networks Using Active Elements (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
BR909007984A 1990-02-01 1990-12-05 Processo e circuito para alimentar corrente a uma linha telefonica BR9007984A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9000366A SE465547B (sv) 1990-02-01 1990-02-01 Saett och krets foer likstroemsmatning till en telefonlinje
PCT/SE1990/000804 WO1991011876A1 (en) 1990-02-01 1990-12-05 A method and arrangement for supplying direct current to a telephone line

Publications (1)

Publication Number Publication Date
BR9007984A true BR9007984A (pt) 1992-10-27

Family

ID=20378432

Family Applications (1)

Application Number Title Priority Date Filing Date
BR909007984A BR9007984A (pt) 1990-02-01 1990-12-05 Processo e circuito para alimentar corrente a uma linha telefonica

Country Status (19)

Country Link
US (1) US5335272A (pt)
EP (1) EP0440006B1 (pt)
JP (1) JPH05504244A (pt)
KR (1) KR0129036B1 (pt)
CN (1) CN1026940C (pt)
AU (1) AU646836B2 (pt)
BR (1) BR9007984A (pt)
CA (1) CA2070785A1 (pt)
DE (1) DE69018057T2 (pt)
DK (1) DK0440006T3 (pt)
DZ (1) DZ1479A1 (pt)
ES (1) ES2069729T3 (pt)
FI (1) FI923024A7 (pt)
IE (1) IE67355B1 (pt)
NO (1) NO922726L (pt)
PT (1) PT96643B (pt)
SE (1) SE465547B (pt)
TN (1) TNSN91004A1 (pt)
WO (1) WO1991011876A1 (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4139608A1 (de) * 1991-11-30 1993-06-03 Siemens Nixdorf Inf Syst Verfahren zur versorgungsspannungseinstellung der speiseeinrichtung von teilnehmeranschlussschaltungen
US5249226A (en) * 1992-03-02 1993-09-28 Advanced Micro Devices, Inc. Apparatus for controlling a current supply device
SE9400186D0 (sv) * 1994-01-21 1994-01-21 Ericsson Telefon Ab L M Förfarande i ett telekommunikationssystem
US5659610A (en) * 1994-09-28 1997-08-19 Lucent Technologies Inc. Battery feed circuit
SE503646C2 (sv) * 1994-11-10 1996-07-22 Ericsson Telefon Ab L M Automatisk omkopplingsanordning
JP2845181B2 (ja) * 1995-09-22 1999-01-13 日本電気株式会社 加入者回路
JP2760325B2 (ja) * 1995-09-22 1998-05-28 日本電気株式会社 加入者回路
US5820409A (en) * 1996-08-20 1998-10-13 Chrysler Corporation Rotatable pin connector
US5823808A (en) * 1996-08-20 1998-10-20 Chrysler Corporation Cam lever operated connector
US5913691A (en) * 1996-08-20 1999-06-22 Chrysler Corporation Dual power/control connector
US5934938A (en) * 1996-08-20 1999-08-10 Chrysler Corporation Split seal retainer for an electrical connector
US6301358B1 (en) * 1998-05-29 2001-10-09 Avaya Technology Corp. Dual-slope current battery-feed circuit
US6606383B1 (en) 1999-04-19 2003-08-12 Adtran Inc. Automatic remote termination sensing and line powering scheme
DE10140358C2 (de) 2001-08-17 2003-07-10 Infineon Technologies Ag Telefonsystem mit Stromregelung im Konstantstrombereich
DE102005020896B4 (de) * 2005-05-04 2007-12-13 Infineon Technologies Ag Verfahren und Regelschaltung zur Erzeugung einer Versorgungsgleichspannung für ein analoges Telefon

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476350A (en) * 1981-02-17 1984-10-09 Bell Telephone Laboratories, Incorporated Battery feed circuit
SE433284B (sv) * 1982-09-17 1984-05-14 Ericsson Telefon Ab L M Anordning for strommatning av en abonnentapparat
SE433285B (sv) * 1982-09-22 1984-05-14 Ericsson Telefon Ab L M Anordning for strommatning av en abonnentapparat
US4563547A (en) * 1983-03-07 1986-01-07 At&T Bell Laboratories Loop-start/ground-start line interface circuit

Also Published As

Publication number Publication date
DE69018057T2 (de) 1995-07-27
KR920704488A (ko) 1992-12-19
SE9000366D0 (sv) 1990-02-01
NO922726D0 (no) 1992-07-10
AU646836B2 (en) 1994-03-10
DZ1479A1 (fr) 2004-09-13
AU7146791A (en) 1991-08-21
PT96643B (pt) 1998-08-31
US5335272A (en) 1994-08-02
NO922726L (no) 1992-07-10
IE67355B1 (en) 1996-03-20
CN1053873A (zh) 1991-08-14
FI923024A0 (fi) 1992-06-29
EP0440006A1 (en) 1991-08-07
CN1026940C (zh) 1994-12-07
TNSN91004A1 (fr) 1992-10-25
ES2069729T3 (es) 1995-05-16
JPH05504244A (ja) 1993-07-01
SE465547B (sv) 1991-09-23
SE9000366L (sv) 1991-08-02
PT96643A (pt) 1992-10-30
IE910208A1 (en) 1991-08-14
DK0440006T3 (da) 1995-07-31
WO1991011876A1 (en) 1991-08-08
KR0129036B1 (ko) 1998-04-08
CA2070785A1 (en) 1991-08-02
EP0440006B1 (en) 1995-03-22
FI923024A7 (fi) 1992-06-29
DE69018057D1 (de) 1995-04-27

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Legal Events

Date Code Title Description
FB19 Grant procedure suspended (art. 19)
FF Decision: intention to grant
FG Letter patent granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 05/12/2005