SE431704B - Forfarande vid strommatning av en abonnentapparat fran en telefonvexel - Google Patents

Forfarande vid strommatning av en abonnentapparat fran en telefonvexel

Info

Publication number
SE431704B
SE431704B SE8204185A SE8204185A SE431704B SE 431704 B SE431704 B SE 431704B SE 8204185 A SE8204185 A SE 8204185A SE 8204185 A SE8204185 A SE 8204185A SE 431704 B SE431704 B SE 431704B
Authority
SE
Sweden
Prior art keywords
voltage
power supply
subscriber device
amplifier
procedure
Prior art date
Application number
SE8204185A
Other languages
English (en)
Swedish (sv)
Other versions
SE8204185L (sv
SE8204185D0 (sv
Inventor
J N Sundvall
J 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 SE8204185A priority Critical patent/SE431704B/sv
Publication of SE8204185D0 publication Critical patent/SE8204185D0/xx
Priority to AU17759/83A priority patent/AU554907B2/en
Priority to DE8383902302T priority patent/DE3366051D1/de
Priority to US06/598,322 priority patent/US4617426A/en
Priority to JP58502402A priority patent/JPS59501241A/ja
Priority to PCT/SE1983/000242 priority patent/WO1984000459A1/en
Priority to EP83902302A priority patent/EP0113747B1/en
Priority to BR8307633A priority patent/BR8307633A/pt
Priority to KR1019830002975A priority patent/KR870000076B1/ko
Priority to IT21935/83A priority patent/IT1164296B/it
Publication of SE8204185L publication Critical patent/SE8204185L/
Publication of SE431704B publication Critical patent/SE431704B/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/06—Current supply arrangements for telephone systems in which current supply sources at subordinate switching centres are charged from the main exchange
    • 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)
SE8204185A 1982-07-06 1982-07-06 Forfarande vid strommatning av en abonnentapparat fran en telefonvexel SE431704B (sv)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE8204185A SE431704B (sv) 1982-07-06 1982-07-06 Forfarande vid strommatning av en abonnentapparat fran en telefonvexel
BR8307633A BR8307633A (pt) 1982-07-06 1983-06-14 Processo para a alimentacao de corrente ao telefone de um assinante a partir de uma central telefonica
JP58502402A JPS59501241A (ja) 1982-07-06 1983-06-14 電話交換局から加入者電話器への給電方法
DE8383902302T DE3366051D1 (en) 1982-07-06 1983-06-14 A method for current supply to a subscriber telephone from a telephone exchange
US06/598,322 US4617426A (en) 1982-07-06 1983-06-14 Method for current supply to a subscriber telephone from a telephone exchange
AU17759/83A AU554907B2 (en) 1982-07-06 1983-06-14 A method for current supply to a subscriber telephone from a telephone exchange
PCT/SE1983/000242 WO1984000459A1 (en) 1982-07-06 1983-06-14 A method for current supply to a subscriber telephone from a telephone exchange
EP83902302A EP0113747B1 (en) 1982-07-06 1983-06-14 A method for current supply to a subscriber telephone from a telephone exchange
KR1019830002975A KR870000076B1 (ko) 1982-07-06 1983-06-30 전화교환국으로부터 가입자전화기에 전류를 공급하는 방법
IT21935/83A IT1164296B (it) 1982-07-06 1983-07-05 Metodo per erogare corrente ad un telefono di abbonato da una centrale telefonica

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8204185A SE431704B (sv) 1982-07-06 1982-07-06 Forfarande vid strommatning av en abonnentapparat fran en telefonvexel

Publications (3)

Publication Number Publication Date
SE8204185D0 SE8204185D0 (sv) 1982-07-06
SE8204185L SE8204185L (sv) 1984-01-07
SE431704B true SE431704B (sv) 1984-02-20

Family

ID=20347308

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8204185A SE431704B (sv) 1982-07-06 1982-07-06 Forfarande vid strommatning av en abonnentapparat fran en telefonvexel

Country Status (9)

Country Link
US (1) US4617426A (ja)
EP (1) EP0113747B1 (ja)
JP (1) JPS59501241A (ja)
KR (1) KR870000076B1 (ja)
AU (1) AU554907B2 (ja)
DE (1) DE3366051D1 (ja)
IT (1) IT1164296B (ja)
SE (1) SE431704B (ja)
WO (1) WO1984000459A1 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0744286B2 (ja) * 1986-03-04 1995-05-15 三菱電機株式会社 非晶質光発電素子モジュールの製造方法
SE465799B (sv) * 1990-03-15 1991-10-28 Ericsson Telefon Ab L M Anordning foer reducerad effektmatning till en abonnentlinje
US5404771A (en) * 1993-05-25 1995-04-11 Soma; David N. Device for disposing the toe clips on bicycle pedals in upright operative positions when the toe clips are not engaged by the cyclists shoes
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
US5649009A (en) * 1994-11-14 1997-07-15 Harris Corporation Differential longitudinal amplifier for a subscriber line interface circuit
GB2315188B (en) * 1996-07-09 1999-04-14 Telspec Plc Power supply system for telephone line wires
US20030072436A1 (en) * 2001-10-15 2003-04-17 Eckhoff Christopher D. Subscriber line interface circuitry with modified DC feed
US7116778B2 (en) * 2002-09-30 2006-10-03 Silicon Laboratories, Inc. Adaptive linefeed control for varying load on a subscriber loop

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916110A (en) * 1974-05-02 1975-10-28 Gte Automatic Electric Lab Inc Line circuit employing constant current devices for battery feed
US4315106A (en) * 1979-11-28 1982-02-09 International Telephone And Telegraph Corporation Apparatus for regulating current supplied to a telephone line signal of the type employed in digital telephone systems
GB2064915B (en) * 1979-11-29 1984-03-21 Standard Telephones Cables Ltd Telephone line feed circuit
JPS6022571B2 (ja) * 1979-12-05 1985-06-03 株式会社日立製作所 地絡保護方式
GB2065418B (en) * 1979-12-06 1984-02-15 Standard Telephones Cables Ltd Telephone line feed
JPS5737966A (en) * 1980-08-15 1982-03-02 Nec Corp Compensating system for unbalance to earth
US4317963A (en) * 1980-09-22 1982-03-02 International Telephone And Telegraph Corporation Subscriber line interface circuit utilizing impedance synthesizer and shared voltage source for loop current regulation control
CA1171989A (en) * 1981-02-17 1984-07-31 Denis W. Aull Battery feed circuit
US4419542A (en) * 1982-05-17 1983-12-06 Bell Telephone Laboratories, Incorporated Battery feed circuit

Also Published As

Publication number Publication date
SE8204185L (sv) 1984-01-07
AU1775983A (en) 1984-02-08
EP0113747B1 (en) 1986-09-10
WO1984000459A1 (en) 1984-02-02
IT1164296B (it) 1987-04-08
IT8321935A1 (it) 1985-01-05
DE3366051D1 (en) 1986-10-16
JPS59501241A (ja) 1984-07-12
KR870000076B1 (ko) 1987-02-09
SE8204185D0 (sv) 1982-07-06
AU554907B2 (en) 1986-09-04
US4617426A (en) 1986-10-14
EP0113747A1 (en) 1984-07-25
KR840005636A (ko) 1984-11-14
IT8321935A0 (it) 1983-07-05
JPH0462218B2 (ja) 1992-10-05

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