SE9702174L - Förfarande för att reglera signalutrymmet i en abonnentlinjekrets jämte abonnentlinjekrets - Google Patents

Förfarande för att reglera signalutrymmet i en abonnentlinjekrets jämte abonnentlinjekrets

Info

Publication number
SE9702174L
SE9702174L SE9702174A SE9702174A SE9702174L SE 9702174 L SE9702174 L SE 9702174L SE 9702174 A SE9702174 A SE 9702174A SE 9702174 A SE9702174 A SE 9702174A SE 9702174 L SE9702174 L SE 9702174L
Authority
SE
Sweden
Prior art keywords
voltage
wire
subscriber line
line circuit
threshold
Prior art date
Application number
SE9702174A
Other languages
Unknown language ( )
English (en)
Other versions
SE9702174D0 (sv
SE509626C2 (sv
Inventor
Anders Emericks
Henrik Hellberg
Mattias Israelsson
Carl-Henrik Malmgren
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 SE9702174A priority Critical patent/SE509626C2/sv
Publication of SE9702174D0 publication Critical patent/SE9702174D0/sv
Priority to TW086109180A priority patent/TW356633B/zh
Priority to CA002293494A priority patent/CA2293494A1/en
Priority to EP98928718A priority patent/EP0986891B1/en
Priority to JP50224199A priority patent/JP2002503418A/ja
Priority to PCT/SE1998/001018 priority patent/WO1998056162A1/en
Priority to AU80446/98A priority patent/AU8044698A/en
Priority to KR1019997011385A priority patent/KR100615133B1/ko
Priority to DE69835152T priority patent/DE69835152T2/de
Priority to CNB988058464A priority patent/CN1179540C/zh
Priority to US09/089,499 priority patent/US6119090A/en
Publication of SE9702174L publication Critical patent/SE9702174L/sv
Publication of SE509626C2 publication Critical patent/SE509626C2/sv

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)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephonic Communication Services (AREA)
SE9702174A 1997-06-06 1997-06-06 Förfarande för att reglera signalutrymmet i en abonnentlinjekrets jämte abonnentlinjekrets SE509626C2 (sv)

Priority Applications (11)

Application Number Priority Date Filing Date Title
SE9702174A SE509626C2 (sv) 1997-06-06 1997-06-06 Förfarande för att reglera signalutrymmet i en abonnentlinjekrets jämte abonnentlinjekrets
TW086109180A TW356633B (en) 1997-06-06 1997-06-30 A method in a subscriber line interface circuit as well as a subscriber line interface circuit the invention relates to a subscriber line interface circuit connected to a two-wire telephone line
CNB988058464A CN1179540C (zh) 1997-06-06 1998-05-28 用户线接口电路及其中的一种方法
JP50224199A JP2002503418A (ja) 1997-06-06 1998-05-28 加入者線インターフェース回路の方法と加入者線インターフェース回路
EP98928718A EP0986891B1 (en) 1997-06-06 1998-05-28 A method in a subscriber line interface circuit as well as a subscriber line interface circuit
CA002293494A CA2293494A1 (en) 1997-06-06 1998-05-28 A method in a subscriber line interface circuit as well as a subscriber line interface circuit
PCT/SE1998/001018 WO1998056162A1 (en) 1997-06-06 1998-05-28 A method in a subscriber line interface circuit as well as a subscriber line interface circuit
AU80446/98A AU8044698A (en) 1997-06-06 1998-05-28 A method in a subscriber line interface circuit as well as subscriber line interface circuit
KR1019997011385A KR100615133B1 (ko) 1997-06-06 1998-05-28 전화선 상의 신호 헤드룸을 자동적으로 조정하는 가입자선 인터페이스 회로 및 이를 행하는 방법
DE69835152T DE69835152T2 (de) 1997-06-06 1998-05-28 Teilnehmerleitungsschnittstellenschaltung und verfahren
US09/089,499 US6119090A (en) 1997-06-06 1998-06-03 Subscriber line interface circuit which automatically adjusts the signal headroom on a telephone line and a method of doing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9702174A SE509626C2 (sv) 1997-06-06 1997-06-06 Förfarande för att reglera signalutrymmet i en abonnentlinjekrets jämte abonnentlinjekrets

Publications (3)

Publication Number Publication Date
SE9702174D0 SE9702174D0 (sv) 1997-06-06
SE9702174L true SE9702174L (sv) 1998-12-07
SE509626C2 SE509626C2 (sv) 1999-02-15

Family

ID=20407286

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9702174A SE509626C2 (sv) 1997-06-06 1997-06-06 Förfarande för att reglera signalutrymmet i en abonnentlinjekrets jämte abonnentlinjekrets

Country Status (11)

Country Link
US (1) US6119090A (sv)
EP (1) EP0986891B1 (sv)
JP (1) JP2002503418A (sv)
KR (1) KR100615133B1 (sv)
CN (1) CN1179540C (sv)
AU (1) AU8044698A (sv)
CA (1) CA2293494A1 (sv)
DE (1) DE69835152T2 (sv)
SE (1) SE509626C2 (sv)
TW (1) TW356633B (sv)
WO (1) WO1998056162A1 (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0002350L (sv) * 2000-06-21 2001-12-22 Ericsson Telefon Ab L M En metod att generera en ringsignal i en abonnentlinjekrets
US8253416B2 (en) * 2009-03-10 2012-08-28 Time Medical Holdings Company Limited Superconductor magnetic resonance imaging system and method (super-MRI)
US8363822B2 (en) * 2009-08-07 2013-01-29 Microsemi Semiconductor (U.S.) Inc. Method and apparatus for battery switching during ringing

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002852A (en) * 1975-07-08 1977-01-11 International Telephone And Telegraph Corporation Electronic telephone network
SE453626B (sv) * 1986-06-27 1988-02-15 Ericsson Telefon Ab L M Sett och anordning att strommata en telefonlinje for att vid begrensad batterispenning kunna overfora en odistorderad talsignal
DE69016648T2 (de) * 1990-05-11 1995-07-06 Alcatel Nv Fernmeldeleitungsschaltung.
US5511118A (en) * 1991-01-31 1996-04-23 Northern Telecom Limited Method of providing d.c. feed to a telephone line
DE4221567C2 (de) * 1992-07-01 1995-07-06 Siemens Ag Leitungsabschluß einer Telefonleitung
US5694465A (en) * 1995-03-16 1997-12-02 Advanced Micro Devices, Inc. Integrated ringer for short telephone lines
US5848149A (en) * 1995-05-26 1998-12-08 Lucent Technologies Inc. Subscriber line interface and power circuit
KR970031688A (ko) * 1995-11-04 1997-06-26 김광호 가입자 라인 인터페이스 회로
US5872842A (en) * 1996-12-27 1999-02-16 Scientific-Atlanta, Inc. Unbalanced ringing using a balanced ringing generator of a subscriber line interface circuit

Also Published As

Publication number Publication date
TW356633B (en) 1999-04-21
EP0986891B1 (en) 2006-07-05
JP2002503418A (ja) 2002-01-29
CA2293494A1 (en) 1998-12-10
DE69835152D1 (de) 2006-08-17
WO1998056162A1 (en) 1998-12-10
KR100615133B1 (ko) 2006-08-22
CN1179540C (zh) 2004-12-08
CN1259259A (zh) 2000-07-05
DE69835152T2 (de) 2007-05-31
AU8044698A (en) 1998-12-21
EP0986891A1 (en) 2000-03-22
KR20010013386A (ko) 2001-02-26
US6119090A (en) 2000-09-12
SE9702174D0 (sv) 1997-06-06
SE509626C2 (sv) 1999-02-15

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Legal Events

Date Code Title Description
NUG Patent has lapsed
NUG Patent has lapsed