SE507920C2 - Linjekrets - Google Patents

Linjekrets

Info

Publication number
SE507920C2
SE507920C2 SE9604103A SE9604103A SE507920C2 SE 507920 C2 SE507920 C2 SE 507920C2 SE 9604103 A SE9604103 A SE 9604103A SE 9604103 A SE9604103 A SE 9604103A SE 507920 C2 SE507920 C2 SE 507920C2
Authority
SE
Sweden
Prior art keywords
line
voltage
current
value
predetermined
Prior art date
Application number
SE9604103A
Other languages
English (en)
Swedish (sv)
Other versions
SE9604103D0 (sv
SE9604103L (sv
Inventor
Hans Eriksson
Elisabeth Larsson
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
Priority to SE9604103A priority Critical patent/SE507920C2/sv
Publication of SE9604103D0 publication Critical patent/SE9604103D0/xx
Priority to TW086107028A priority patent/TW356632B/zh
Priority to US08/961,017 priority patent/US6122367A/en
Priority to DE69731303T priority patent/DE69731303T2/de
Priority to JP52245798A priority patent/JP2001504300A/ja
Priority to CA002271109A priority patent/CA2271109A1/fr
Priority to KR1019997003977A priority patent/KR100351259B1/ko
Priority to EP97912619A priority patent/EP0931412B1/fr
Priority to PCT/SE1997/001856 priority patent/WO1998021875A1/fr
Priority to CNB971994285A priority patent/CN1145348C/zh
Priority to AU49744/97A priority patent/AU4974497A/en
Publication of SE9604103L publication Critical patent/SE9604103L/
Publication of SE507920C2 publication Critical patent/SE507920C2/sv
Priority to US09/626,540 priority patent/US6700975B1/en

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)
  • Interface Circuits In Exchanges (AREA)
SE9604103A 1996-11-08 1996-11-08 Linjekrets SE507920C2 (sv)

Priority Applications (12)

Application Number Priority Date Filing Date Title
SE9604103A SE507920C2 (sv) 1996-11-08 1996-11-08 Linjekrets
TW086107028A TW356632B (en) 1996-11-08 1997-05-24 A subscriber line interface circuit
US08/961,017 US6122367A (en) 1996-11-08 1997-10-30 Subscriber line interface circuit
AU49744/97A AU4974497A (en) 1996-11-08 1997-11-06 A subscriber line interface circuit
KR1019997003977A KR100351259B1 (ko) 1996-11-08 1997-11-06 가입자 회선 인터페이스 회로
JP52245798A JP2001504300A (ja) 1996-11-08 1997-11-06 加入者回線インタフェース回路
CA002271109A CA2271109A1 (fr) 1996-11-08 1997-11-06 Circuit d'interface de ligne d'abonne
DE69731303T DE69731303T2 (de) 1996-11-08 1997-11-06 Teilnehmerleitungsschnittstellenschaltung
EP97912619A EP0931412B1 (fr) 1996-11-08 1997-11-06 Circuit d'interface de ligne d'abonne
PCT/SE1997/001856 WO1998021875A1 (fr) 1996-11-08 1997-11-06 Circuit d'interface de ligne d'abonne
CNB971994285A CN1145348C (zh) 1996-11-08 1997-11-06 用户线接口电路
US09/626,540 US6700975B1 (en) 1996-11-08 2000-07-27 Subscriber line interface circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9604103A SE507920C2 (sv) 1996-11-08 1996-11-08 Linjekrets

Publications (3)

Publication Number Publication Date
SE9604103D0 SE9604103D0 (sv) 1996-11-08
SE9604103L SE9604103L (sv) 1998-05-09
SE507920C2 true SE507920C2 (sv) 1998-07-27

Family

ID=20404548

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9604103A SE507920C2 (sv) 1996-11-08 1996-11-08 Linjekrets

Country Status (11)

Country Link
US (1) US6122367A (fr)
EP (1) EP0931412B1 (fr)
JP (1) JP2001504300A (fr)
KR (1) KR100351259B1 (fr)
CN (1) CN1145348C (fr)
AU (1) AU4974497A (fr)
CA (1) CA2271109A1 (fr)
DE (1) DE69731303T2 (fr)
SE (1) SE507920C2 (fr)
TW (1) TW356632B (fr)
WO (1) WO1998021875A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6700975B1 (en) 1996-11-08 2004-03-02 Telefonaktiebolaget Lm Ericsson (Publ) Subscriber line interface circuit
US6301358B1 (en) 1998-05-29 2001-10-09 Avaya Technology Corp. Dual-slope current battery-feed circuit
US6665398B1 (en) * 1998-09-01 2003-12-16 Christopher Ludeman Programmable subscriber loop interface circuit and method
US6484347B1 (en) * 2001-07-06 2002-11-26 Ta-Chin Wang Steam cleaner
DE10140358C2 (de) * 2001-08-17 2003-07-10 Infineon Technologies Ag Telefonsystem mit Stromregelung im Konstantstrombereich
USD786217S1 (en) * 2016-02-19 2017-05-09 Adrian Stoch Combined necklace and earphone
USD786221S1 (en) * 2016-02-19 2017-05-09 Adrian Stoch Earbud

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4451703A (en) * 1981-12-30 1984-05-29 Stromberg-Carlson Corporation All electronic interface for telephony system
SE433285B (sv) * 1982-09-22 1984-05-14 Ericsson Telefon Ab L M Anordning for strommatning av en abonnentapparat
US4598173A (en) * 1984-10-15 1986-07-01 Itt Corporation Interface circuit for a subscriber line circuit
JP2573190B2 (ja) * 1985-09-03 1997-01-22 株式会社東芝 直流給電回路
IT1197917B (it) * 1986-10-24 1988-12-21 Sgs Microelettronica Spa Circuito di controllo per un regolatore di tensione di un circuito interfaccia attacco linea telefonica d'utente (slic)
US5103387A (en) * 1991-01-31 1992-04-07 Northern Telecom Limited High voltage converter
US5249226A (en) * 1992-03-02 1993-09-28 Advanced Micro Devices, Inc. Apparatus for controlling a current supply device
JP2639304B2 (ja) * 1993-06-15 1997-08-13 日本電気株式会社 加入者回路
SE501975C2 (sv) * 1993-11-09 1995-07-03 Ericsson Telefon Ab L M Gränssnittskrets mellan fyrtrådsledning och tvåtrådsledning
US5659610A (en) * 1994-09-28 1997-08-19 Lucent Technologies Inc. Battery feed circuit
US5619567A (en) * 1994-10-31 1997-04-08 Advanced Micro Devices Variable DC feed characteristic in a subscriber line interface circuit
JP2760325B2 (ja) * 1995-09-22 1998-05-28 日本電気株式会社 加入者回路
US5721774A (en) * 1995-12-15 1998-02-24 Lucent Technologies Inc. Longitudinally balanced, dual voltage line-feed circuit
US5854839A (en) * 1996-05-10 1998-12-29 Lucent Technologies Inc. Dual voltage, self-monitoring line circuit
US5854550A (en) * 1997-11-06 1998-12-29 Lucent Technologies Inc. Transformerless digital-line battery feed circuit

Also Published As

Publication number Publication date
DE69731303D1 (de) 2004-11-25
US6122367A (en) 2000-09-19
KR100351259B1 (ko) 2002-09-05
EP0931412A1 (fr) 1999-07-28
SE9604103D0 (sv) 1996-11-08
CN1145348C (zh) 2004-04-07
EP0931412B1 (fr) 2004-10-20
KR20000053065A (ko) 2000-08-25
SE9604103L (sv) 1998-05-09
TW356632B (en) 1999-04-21
WO1998021875A1 (fr) 1998-05-22
AU4974497A (en) 1998-06-03
DE69731303T2 (de) 2005-11-17
JP2001504300A (ja) 2001-03-27
CN1235731A (zh) 1999-11-17
CA2271109A1 (fr) 1998-05-22

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Legal Events

Date Code Title Description
NUG Patent has lapsed