SE8602889L - Sett och anordning att strommata en telefonlinje for att vid begrensad batterispenning kunna overfora en odistorderad talsignal - Google Patents

Sett och anordning att strommata en telefonlinje for att vid begrensad batterispenning kunna overfora en odistorderad talsignal

Info

Publication number
SE8602889L
SE8602889L SE8602889A SE8602889A SE8602889L SE 8602889 L SE8602889 L SE 8602889L SE 8602889 A SE8602889 A SE 8602889A SE 8602889 A SE8602889 A SE 8602889A SE 8602889 L SE8602889 L SE 8602889L
Authority
SE
Sweden
Prior art keywords
current
difference
line
pct
voltage
Prior art date
Application number
SE8602889A
Other languages
English (en)
Other versions
SE453626B (sv
SE8602889D0 (sv
Inventor
H Johansson
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 SE8602889A priority Critical patent/SE453626B/sv
Publication of SE8602889D0 publication Critical patent/SE8602889D0/sv
Priority to DE8787904004T priority patent/DE3774403D1/de
Priority to KR1019880700207A priority patent/KR930002588B1/ko
Priority to US07/158,271 priority patent/US4853959A/en
Priority to JP62503601A priority patent/JP2771980B2/ja
Priority to PCT/SE1987/000262 priority patent/WO1988000420A1/en
Priority to EP87904004A priority patent/EP0269714B1/en
Publication of SE8602889L publication Critical patent/SE8602889L/sv
Publication of SE453626B publication Critical patent/SE453626B/sv

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
SE8602889A 1986-06-27 1986-06-27 Sett och anordning att strommata en telefonlinje for att vid begrensad batterispenning kunna overfora en odistorderad talsignal SE453626B (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE8602889A SE453626B (sv) 1986-06-27 1986-06-27 Sett och anordning att strommata en telefonlinje for att vid begrensad batterispenning kunna overfora en odistorderad talsignal
DE8787904004T DE3774403D1 (de) 1986-06-27 1987-05-26 Verfahren und geraet zur speisung einer fernsprechleitung.
KR1019880700207A KR930002588B1 (ko) 1986-06-27 1987-05-26 제한된 전지전압에서 왜곡이 없는 음성신호의 전송이 가능하도록 전화선에 전력을 공급하는 방법 및 장치
US07/158,271 US4853959A (en) 1986-06-27 1987-05-26 Method and apparatus for feeding power to a telephone line such that for restricted battery voltage there is enabled the transmission of an undistorted speech signal
JP62503601A JP2771980B2 (ja) 1986-06-27 1987-05-26 ひずみのない音声信号を所定電池電圧で伝送するために、電話線に電力を供給する装置および方法
PCT/SE1987/000262 WO1988000420A1 (en) 1986-06-27 1987-05-26 Method and apparatus for feeding power to a telephone line
EP87904004A EP0269714B1 (en) 1986-06-27 1987-05-26 Method and apparatus for feeding power to a telephone line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8602889A SE453626B (sv) 1986-06-27 1986-06-27 Sett och anordning att strommata en telefonlinje for att vid begrensad batterispenning kunna overfora en odistorderad talsignal

Publications (3)

Publication Number Publication Date
SE8602889D0 SE8602889D0 (sv) 1986-06-27
SE8602889L true SE8602889L (sv) 1987-12-28
SE453626B SE453626B (sv) 1988-02-15

Family

ID=20364962

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8602889A SE453626B (sv) 1986-06-27 1986-06-27 Sett och anordning att strommata en telefonlinje for att vid begrensad batterispenning kunna overfora en odistorderad talsignal

Country Status (7)

Country Link
US (1) US4853959A (sv)
EP (1) EP0269714B1 (sv)
JP (1) JP2771980B2 (sv)
KR (1) KR930002588B1 (sv)
DE (1) DE3774403D1 (sv)
SE (1) SE453626B (sv)
WO (1) WO1988000420A1 (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE501975C2 (sv) * 1993-11-09 1995-07-03 Ericsson Telefon Ab L M Gränssnittskrets mellan fyrtrådsledning och tvåtrådsledning
SE9400186D0 (sv) * 1994-01-21 1994-01-21 Ericsson Telefon Ab L M Förfarande i ett telekommunikationssystem
SE511963C2 (sv) * 1997-04-23 1999-12-20 Ericsson Telefon Ab L M Anordning och förfarande för bestämning av linjespänning i en abonnentlinjekrets
SE509626C2 (sv) * 1997-06-06 1999-02-15 Ericsson Telefon Ab L M Förfarande för att reglera signalutrymmet i en abonnentlinjekrets jämte abonnentlinjekrets
AU1523899A (en) 1997-11-14 1999-06-07 Foto-Wear, Inc. Imaging transfer system
FI104935B (sv) * 1997-11-18 2000-04-28 Nokia Networks Oy Abonnentlinjekrets
FI104933B (sv) * 1997-11-18 2000-04-28 Nokia Networks Oy Abonnentlinjekrets
FI104934B (sv) * 1997-11-18 2000-04-28 Nokia Networks Oy Abonnentlinjekrets
US9596362B1 (en) * 2015-05-28 2017-03-14 Cottonwood Creek Technologies, Inc. Automated determination of power transmission resistance

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
US4431874A (en) * 1981-09-24 1984-02-14 Motorola, Inc. Balanced current multiplier circuit for a subscriber loop interface circuit
SE433285B (sv) * 1982-09-22 1984-05-14 Ericsson Telefon Ab L M Anordning for strommatning av en abonnentapparat
US4727574A (en) * 1985-09-24 1988-02-23 Northern Telecom Limited Subscriber line interface circuit with improved d.c. balance

Also Published As

Publication number Publication date
SE453626B (sv) 1988-02-15
KR880701509A (ko) 1988-07-27
SE8602889D0 (sv) 1986-06-27
JPS63503587A (ja) 1988-12-22
US4853959A (en) 1989-08-01
WO1988000420A1 (en) 1988-01-14
DE3774403D1 (de) 1991-12-12
JP2771980B2 (ja) 1998-07-02
KR930002588B1 (ko) 1993-04-03
EP0269714B1 (en) 1991-11-06
EP0269714A1 (en) 1988-06-08

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