SE7908193L - Transmissionsbrygga for en abonnentkrets - Google Patents

Transmissionsbrygga for en abonnentkrets

Info

Publication number
SE7908193L
SE7908193L SE7908193A SE7908193A SE7908193L SE 7908193 L SE7908193 L SE 7908193L SE 7908193 A SE7908193 A SE 7908193A SE 7908193 A SE7908193 A SE 7908193A SE 7908193 L SE7908193 L SE 7908193L
Authority
SE
Sweden
Prior art keywords
inverting signal
terminals
coupled
transmission bridge
signal inputs
Prior art date
Application number
SE7908193A
Other languages
Unknown language ( )
English (en)
Other versions
SE436961B (sv
Inventor
A H J Reuvekamp
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of SE7908193L publication Critical patent/SE7908193L/sv
Publication of SE436961B publication Critical patent/SE436961B/sv

Links

Classifications

    • 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
    • H04M19/008—Using DC/DC converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Amplifiers (AREA)
SE7908193A 1978-10-06 1979-10-03 Transmissionsbrygga for en abonnentkrets SE436961B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7810086A NL7810086A (nl) 1978-10-06 1978-10-06 Voedingsbrug voor een abonneestroomloop.

Publications (2)

Publication Number Publication Date
SE7908193L true SE7908193L (sv) 1980-04-07
SE436961B SE436961B (sv) 1985-01-28

Family

ID=19831672

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7908193A SE436961B (sv) 1978-10-06 1979-10-03 Transmissionsbrygga for en abonnentkrets

Country Status (14)

Country Link
US (1) US4287393A (sv)
JP (1) JPS5831789B2 (sv)
AU (1) AU528288B2 (sv)
BE (1) BE879204A (sv)
BR (1) BR7906373A (sv)
CA (1) CA1138139A (sv)
CH (1) CH646827A5 (sv)
DE (1) DE2940025C3 (sv)
DK (1) DK413079A (sv)
FR (1) FR2438394A1 (sv)
GB (1) GB2032733B (sv)
IT (1) IT1193352B (sv)
NL (1) NL7810086A (sv)
SE (1) SE436961B (sv)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491704B1 (fr) * 1980-10-03 1985-06-07 Constr Telephoniques Circuit d'alimentation d'une ligne telephonique
DE3116783C2 (de) * 1981-04-28 1983-09-01 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung für eine Teilnehmeranschlußschaltung für Fernsprechanlagen
US4431868A (en) * 1981-07-09 1984-02-14 International Telephone And Telegraph Corporation Solid state telephone line interface circuit with ringing capability
NL8103572A (nl) * 1981-07-29 1983-02-16 Philips Nv Drijverschakeling.
DE3473803D1 (en) * 1984-06-20 1988-10-06 Ibm Detection circuit for current varations
JPS61154347A (ja) * 1984-12-27 1986-07-14 Fujitsu Ltd 交換機の給電回路
AT386307B (de) * 1986-05-23 1988-08-10 Siemens Ag Oesterreich Fernsprechteilnehmerschaltung
US4852160A (en) * 1987-03-03 1989-07-25 Kiko Frederick J Channel unit interface circuit
US5457743A (en) * 1990-09-04 1995-10-10 Tollgrade Communications, Inc. Metallic channel unit network
US5586181A (en) * 1990-09-04 1996-12-17 Tollgrade Communications, Inc. Metallic channel unit network
US5202919A (en) * 1990-09-04 1993-04-13 Tollgrade Communications, Inc. Metallic channel unit network
US5557672A (en) * 1993-03-10 1996-09-17 Antec Corporation Channel interface unit
DE19733250A1 (de) * 1997-08-01 1999-02-04 Deutsche Telephonwerk Kabel Schaltungsanordnung für eine Netzabschlußeinheit
WO2011052374A1 (ja) * 2009-11-02 2011-05-05 エルメック株式会社 コモンモードフィルタ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH586984A5 (sv) * 1974-12-23 1977-04-15 Ibm
GB1563802A (en) * 1975-11-10 1980-04-02 Post Office Electronic current feed circuit
US4007335A (en) * 1975-11-12 1977-02-08 Bell Telephone Laboratories, Incorporated Telephone line battery feed circuit
US4041252A (en) * 1976-06-07 1977-08-09 North Electric Company Transformerless two-wire/four-wire hybrid with DC sourcing capability
FR2363952A1 (fr) * 1976-09-03 1978-03-31 Thomson Csf Circuit de ligne telephonique
DE2655005C3 (de) * 1976-12-02 1980-04-17 Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin Schaltungsanordnung für eine elektronische Teilnehmerspeisung
FR2414832A1 (fr) * 1978-01-13 1979-08-10 Labo Cent Telecommunicat Pont d'alimentation pour ligne telephonique
GB2013000A (en) * 1978-01-20 1979-08-01 Hitachi Ltd Dc D.C. magnetic field cancellation circuit

Also Published As

Publication number Publication date
DE2940025A1 (de) 1980-04-10
BR7906373A (pt) 1980-06-24
DK413079A (da) 1980-04-07
JPS5831789B2 (ja) 1983-07-08
AU5141579A (en) 1980-04-17
FR2438394A1 (fr) 1980-04-30
JPS5550769A (en) 1980-04-12
CA1138139A (en) 1982-12-21
FR2438394B1 (sv) 1983-02-18
GB2032733B (en) 1982-09-29
DE2940025B2 (de) 1981-06-19
GB2032733A (en) 1980-05-08
US4287393A (en) 1981-09-01
DE2940025C3 (de) 1982-02-11
BE879204A (fr) 1980-04-04
NL7810086A (nl) 1980-04-09
CH646827A5 (de) 1984-12-14
SE436961B (sv) 1985-01-28
IT7926247A0 (it) 1979-10-03
IT1193352B (it) 1988-06-15
AU528288B2 (en) 1983-04-21

Similar Documents

Publication Publication Date Title
JPS5784149A (en) Semiconductor integrated circuit device
GB1522723A (en) Telephone line amplifier
GB1338896A (en) Hybrid networks
KR920011051A (ko) 분리형 증폭기 회로
ATE77189T1 (de) Schaltungsanordnung zur isolationsgewaehrung zwischen den uebertragungswegen eines freisprechapparates.
SE9003661L (sv) Foerfarande och anordning foer att minska den erforderliga storleken hos ett digitalt filter i samband med ekoeliminering i en abonnentlinjekrets
BE902986A (fr) Circuit de ligne
DE3752174D1 (de) Netzwerk mit signalformung
SE8404228D0 (sv) Telefonkrets
ES245958U (es) Disposicion de circuitos para la delimitacion de tensiones
JPS5755660A (en) Voice and data separating circuit
JPS5537046A (en) Subscriber's circuit
GB2012521A (en) Feed bridge for a telephone line
JPS56115041A (en) Electronic hybrid circuit
JPS5623008A (en) Bridge amplifier
DK161998C (da) Koblingstrin for tilkobling af et signalbehandlende apparat til en transmissionsledning
JPS5671338A (en) Conversion circuit of two/four wires
JPS56160110A (en) Amplifying circuit
JPS55110427A (en) Clamp circuit
JPS57166725A (en) Level discriminating circuit
JPS5632836A (en) Electronic hybrid circuit
JPS57193111A (en) Filter circuit
JPS5483735A (en) Coupled circuit
JPS6476211A (en) Digital logic integrated circuit
JPS57172515A (en) Pedestal clamping circuit

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 7908193-1

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 7908193-1

Format of ref document f/p: F