BE890403R - Circuit de ligne de telecommunication - Google Patents

Circuit de ligne de telecommunication

Info

Publication number: BE890403R
Authority: BE; Belgium
Prior art keywords: line circuit; telecommunication line; telecommunication; circuit; line
Prior art date: 1979-12-06

Application number

BE2/59366A

Other languages

English (en)

Inventor

A W Sweet

Original Assignee

Standard Telephones Cables Ltd

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.)

1979-12-06

Filing date

1981-09-18

Publication date

1982-01-18

1981-09-18 Application filed by Standard Telephones Cables Ltd filed Critical Standard Telephones Cables Ltd

1982-01-18 Application granted granted Critical

1982-01-18 Publication of BE890403R publication Critical patent/BE890403R/fr

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)

BE2/59366A 1979-12-06 1981-09-18 Circuit de ligne de telecommunication BE890403R (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB7942104A GB2065418B (en)	1979-12-06	1979-12-06	Telephone line feed

Publications (1)

Publication Number	Publication Date
BE890403R true BE890403R (fr)	1982-01-18

Family

ID=10509653

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE2/59366A BE890403R (fr)	1979-12-06	1981-09-18	Circuit de ligne de telecommunication

Country Status (14)

Country	Link
US (1)	US4431869A (fr)
JP (1)	JPS56100562A (fr)
AU (1)	AU542803B2 (fr)
BE (1)	BE890403R (fr)
DE (1)	DE3043907A1 (fr)
EG (1)	EG14711A (fr)
FR (1)	FR2471709A1 (fr)
GB (1)	GB2065418B (fr)
IT (1)	IT1134634B (fr)
NL (1)	NL8006572A (fr)
NZ (1)	NZ195746A (fr)
PT (1)	PT72170B (fr)
SE (1)	SE8008417L (fr)
ZA (1)	ZA807497B (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0057009B1 (fr) *	1981-01-28	1985-07-03	Hitachi, Ltd.	Circuit d'alimentation en courant
CA1157175A (fr) *	1981-02-20	1983-11-15	Mitel Corporation	Circuit economiseur d'energie pour ligne
SE431704B (sv) *	1982-07-06	1984-02-20	Ericsson Telefon Ab L M	Forfarande vid strommatning av en abonnentapparat fran en telefonvexel
SE433284B (sv) *	1982-09-17	1984-05-14	Ericsson Telefon Ab L M	Anordning for strommatning av en abonnentapparat
DE3235085A1 (de) *	1982-09-22	1984-03-22	Siemens AG, 1000 Berlin und 8000 München	Schleifenstromeinspeisung fuer einen kennzeichenumsetzer
SE433285B (sv) *	1982-09-22	1984-05-14	Ericsson Telefon Ab L M	Anordning for strommatning av en abonnentapparat
US4577064A (en) *	1983-04-29	1986-03-18	Gte Lenkurt Incorporated	Auto-balance circuit for battery feed in a telephone circuit
US4532381A (en) *	1984-02-13	1985-07-30	Northern Telecom Limited	Active impedance line feed circuit
US4602130A (en) *	1984-10-15	1986-07-22	Itt Corporation	Dual voltage source feed circuit configuration for a telephone line circuit
CA1231480A (fr) *	1985-03-15	1988-01-12	John A. Barsellotti	Circuit de ligne a courant constant
CA1233583A (fr) *	1985-06-18	1988-03-01	Francis Y. Hung	Dispositif de protection pour circuit d'interface de ligne d'abonne du telephone
US4953160A (en) *	1988-02-24	1990-08-28	Integrated Network Corporation	Digital data over voice communication
US5050210A (en) *	1989-03-10	1991-09-17	Reliance Comm/Tec Corporation	Metallic current limiter
EP0450884B1 (fr) *	1990-04-04	1996-06-12	Seiscor Technologies, Inc.	Circuit d'interface pour ligne d'abonné délivrant du courant régulé
US5103387A (en) *	1991-01-31	1992-04-07	Northern Telecom Limited	High voltage converter
US5461671A (en) *	1992-06-05	1995-10-24	Murata Mfg. Co., Ltd.	Telephone line power utility circuit
US5515433A (en) *	1994-08-30	1996-05-07	Reltec Corporation	Resistance forward telephone line feed circuit
EP0876726A2 (fr) *	1996-09-26	1998-11-11	Koninklijke Philips Electronics N.V.	Circuit d'alimentation, dispositif de telecommunications et procede de gestion d'alimentation courant continu a plusieurs pentes
WO1998049782A2 (fr) *	1997-04-29	1998-11-05	Koninklijke Philips Electronics N.V.	Dispositif de telecommunication par fil et circuit d'alimentation
US6480510B1 (en) *	1998-07-28	2002-11-12	Serconet Ltd.	Local area network of serial intelligent cells
US6956826B1 (en)	1999-07-07	2005-10-18	Serconet Ltd.	Local area network for distributing data communication, sensing and control signals
US6690677B1 (en)	1999-07-20	2004-02-10	Serconet Ltd.	Network for telephony and data communication
US6549616B1 (en) *	2000-03-20	2003-04-15	Serconet Ltd.	Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets
FR2819364B1 (fr) *	2001-01-08	2003-04-11	Cit Alcatel	Dispositif de telealementation d'uin terminal dans un reseau de telecommunication, concentrateur, et repeteur comportant un tel dispositif
IL154234A (en) *	2003-01-30	2010-12-30	Mosaid Technologies Inc	Method and system for providing dc power on local telephone lines
IL159838A0 (en)	2004-01-13	2004-06-20	Yehuda Binder	Information device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5098212A (fr) *	1973-12-26	1975-08-05
NL7402575A (nl) *	1974-02-26	1975-08-28	Philips Nv	Elektronisch telefoontoestel.
CH586983A5 (fr) *	1974-12-23	1977-04-15	Ibm
US4037066A (en) *	1975-03-20	1977-07-19	Lorain Products Corporation	Repeater for transmission lines
US4048552A (en) *	1976-02-12	1977-09-13	Bell Telephone Laboratories, Incorporated	Digitally regulated inverter
FR2377286A1 (fr) *	1977-01-18	1978-08-11	Kleber Colombes	Pneumatique
FR2404976A1 (fr) *	1977-09-30	1979-04-27	Materiel Telephonique	Circuit d'alimentation de ligne
NL7802423A (nl) *	1978-03-06	1979-09-10	Philips Nv	Voedingsinrichting voor een lijnstroomloop.
US4241239A (en) *	1978-02-24	1980-12-23	International Telephone And Telegraph Corporation	Fluxbucking line transformer with electronic equivalent line terminating impedance
DE2850905C2 (de) *	1978-11-24	1985-11-14	Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg	Schaltungsanordnung zur Speisung einer Teilnehmerendeinrichtung
US4268723A (en) *	1979-09-04	1981-05-19	Western Electric Company	Circuits and methods for initializing the loop current of a telephone set

1979
- 1979-12-06 GB GB7942104A patent/GB2065418B/en not_active Expired
1980
- 1980-11-21 DE DE19803043907 patent/DE3043907A1/de not_active Withdrawn
- 1980-12-01 ZA ZA00807497A patent/ZA807497B/xx unknown
- 1980-12-01 SE SE8008417A patent/SE8008417L/ not_active Application Discontinuation
- 1980-12-03 EG EG80751A patent/EG14711A/xx active
- 1980-12-03 NL NL8006572A patent/NL8006572A/nl not_active Application Discontinuation
- 1980-12-03 AU AU65016/80A patent/AU542803B2/en not_active Ceased
- 1980-12-03 US US06/212,347 patent/US4431869A/en not_active Expired - Lifetime
- 1980-12-04 NZ NZ195746A patent/NZ195746A/en unknown
- 1980-12-05 PT PT72170A patent/PT72170B/pt unknown
- 1980-12-05 JP JP17195980A patent/JPS56100562A/ja active Pending
- 1980-12-05 FR FR8025828A patent/FR2471709A1/fr active Granted
- 1980-12-09 IT IT26509/80A patent/IT1134634B/it active
1981
- 1981-09-18 BE BE2/59366A patent/BE890403R/fr not_active IP Right Cessation

Also Published As

Publication number	Publication date
NZ195746A (en)	1984-10-19
IT1134634B (it)	1986-08-13
DE3043907A1 (de)	1981-06-11
GB2065418A (en)	1981-06-24
NL8006572A (nl)	1981-07-01
FR2471709A1 (fr)	1981-06-19
PT72170B (en)	1982-01-05
ZA807497B (en)	1981-11-25
GB2065418B (en)	1984-02-15
AU6501680A (en)	1981-06-11
AU542803B2 (en)	1985-03-14
IT8026509A0 (it)	1980-12-09
US4431869A (en)	1984-02-14
JPS56100562A (en)	1981-08-12
SE8008417L (sv)	1981-06-07
PT72170A (en)	1981-01-01
EG14711A (en)	1985-03-31
FR2471709B1 (fr)	1984-12-28

Legal Events

Date

Code

Title

Description

1991-03-31

RE

Patent lapsed

Owner name: STANDARD TELEPHONES AND CABLES LTD

Effective date: 19900930

Publication	Publication Date	Title
BE890403R (fr)	1982-01-18	Circuit de ligne de telecommunication
DK89378A (da)	1978-09-03	Abonnentlinie/centralliniekreds
GB2064269B (en)	1983-12-21	Telephone line circuit
GB2064244B (en)	1983-11-16	Telephone line circuit
DK145780A (da)	1980-10-07	Loddepraeparat
IT1133777B (it)	1986-07-09	Interruttore circuitale
FR2416600B1 (fr)	1986-06-13	Circuit de ligne telephonique
GB2064902B (en)	1983-09-14	Telephone line circuit
FI802205A7 (fi)	1981-01-18	Matningsbrygga foer abonnentapparat
BR8003568A (pt)	1981-01-05	Estante de telecomunicacoes
GB2050116B (en)	1983-04-27	Telephone line circuit
SE7810700L (sv)	1979-04-18	Abonnentkrets
FR2345862A1 (fr)	1977-10-21	Repeteur pour ligne de telecommunications
DE2918952A1 (de)	1980-11-20	Elektrisches bauelement
IT1140808B (it)	1986-10-10	Interruttore elettronico
GB2055274B (en)	1983-09-21	Telecommunications line circuit
BE890402A (fr)	1982-01-18	Circuit de ligne de telecommunication
AT375182B (de)	1984-07-10	Loetverbindung
BE883232A (fr)	1980-11-10	Terminal de circuit a quatre fils
BE890404R (fr)	1982-01-18	Circuit de ligne telecommunication
BR8002805A (pt)	1980-12-16	Circuito de linha
DE3060972D1 (en)	1982-11-25	Optical circuit arrangement
DK186080A (da)	1980-10-31	Udfaeldningshaerdelige kobberlegeringer
BE891626A (fr)	1982-04-16	Circuit de ligne programmable
BE882490A (fr)	1980-09-29	Borne de raccordement