NO157039C - Abonnentlinjekrets. - Google Patents

Abonnentlinjekrets.

Info

Publication number: NO157039C
Authority: NO; Norway
Prior art keywords: subscriber line; line circuit; circuit; subscriber; line
Prior art date: 1981-07-09

Application number

NO822247A

Other languages

English (en)

Other versions

NO157039B (no

NO822247L (no

Inventor

Daniel Michel Bolus

Ramon Con Woo Chea Jr

Original Assignee

Alcatel 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.)

1981-07-09

Filing date

1982-06-30

Publication date

1988-01-06

1982-06-30 Application filed by Alcatel Nv filed Critical Alcatel Nv

1983-01-10 Publication of NO822247L publication Critical patent/NO822247L/no

1987-09-28 Publication of NO157039B publication Critical patent/NO157039B/no

1988-01-06 Publication of NO157039C publication Critical patent/NO157039C/no

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
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/005—Interface circuits for subscriber lines
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Computer Networks & Wireless Communication (AREA)
Interface Circuits In Exchanges (AREA)
Devices For Supply Of Signal Current (AREA)

NO822247A 1981-07-09 1982-06-30 Abonnentlinjekrets. NO157039C (no)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/281,545 US4431868A (en)	1981-07-09	1981-07-09	Solid state telephone line interface circuit with ringing capability

Publications (3)

Publication Number	Publication Date
NO822247L NO822247L (no)	1983-01-10
NO157039B NO157039B (no)	1987-09-28
NO157039C true NO157039C (no)	1988-01-06

Family

ID=23077742

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO822247A NO157039C (no)	1981-07-09	1982-06-30	Abonnentlinjekrets.

Country Status (10)

Country	Link
US (1)	US4431868A (no)
BE (1)	BE893779A (no)
CH (1)	CH657729A5 (no)
DE (1)	DE3221693C2 (no)
ES (1)	ES513878A0 (no)
FR (1)	FR2509555A1 (no)
GB (1)	GB2102249B (no)
IT (1)	IT1198388B (no)
NO (1)	NO157039C (no)
SE (1)	SE8203970L (no)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4897871A (en) *	1980-04-04	1990-01-30	Siemens Corporation	Apparatus for transmitting and/or receiving balanced signals on a two-wire telecommunication line
US4514595A (en) *	1982-06-10	1985-04-30	Northern Telecom Limited	Active impedance line feed circuit
DE3237652A1 (de) *	1982-10-11	1984-04-12	Siemens AG, 1000 Berlin und 8000 München	Fernsprechanlage
JPS59125157A (ja) *	1982-12-30	1984-07-19	Fujitsu Ltd	給電回路
DE3330384A1 (de) *	1983-08-23	1985-03-07	Siemens AG, 1000 Berlin und 8000 München	Schaltungsanordnung zur erzeugung und anschaltung der rufsignalspannung fuer teilnehmerstationen eines digitalen zeitmultiplex-fernsprechsystems
CA1197641A (en) *	1983-08-26	1985-12-03	David E. Dodds	Telephone line interface circuit
BE898051A (nl) *	1983-10-21	1984-04-24	Bell Telephone Mfg	Telecommunicatielijnketen en bijbehorende polariteitsomkeerketen.
US4532381A (en) *	1984-02-13	1985-07-30	Northern Telecom Limited	Active impedance line feed circuit
US4674119A (en) *	1984-04-10	1987-06-16	Itt Corporation	Wide-band high voltage amplifier for telephone exchange subscriber line interface utilizing low voltage control circuitry
US4612417A (en) *	1984-07-27	1986-09-16	At&T Bell Laboratories	Electronic battery feed circuit for telephone systems
US4598173A (en) *	1984-10-15	1986-07-01	Itt Corporation	Interface circuit for a subscriber line circuit
US4689816A (en) *	1985-01-15	1987-08-25	D.A.V.I.D. Systems, Inc.	Three relay C. O. trunk interface
CA1231480A (en) *	1985-03-15	1988-01-12	John A. Barsellotti	Constant current line circuit
CA1233583A (en) *	1985-06-18	1988-03-01	Francis Y. Hung	Protection arrangement for a telephone subscriber line interface circuit
US5511118A (en) *	1991-01-31	1996-04-23	Northern Telecom Limited	Method of providing d.c. feed to a telephone line
US5103387A (en) *	1991-01-31	1992-04-07	Northern Telecom Limited	High voltage converter
US5661794A (en) *	1992-04-16	1997-08-26	Northern Telecom Limited	Telephone line interface circuit with voltage control
DE4105462C2 (de) *	1991-02-21	1994-03-17	Siemens Ag	Verfahren und Anordnung zur Erzeugung einer Rufwechselspannung in einer Fernmeldeanlage
ES2046112B1 (es) *	1992-04-24	1996-11-16	Revenga Ingenieros S A	Equipo telefonico para lineas directas punto a punto.
WO1994017619A1 (en) *	1993-01-28	1994-08-04	Northern Telecom Limited	Method of providing d.c. feed to a telephone line
ATE166197T1 (de) *	1993-07-29	1998-05-15	St Microelectronics Srl	Integrierte teilnehmerleitungsschnittstellenschaltung mit langsamem polaritätsumschalter
SE502276C2 (sv) *	1994-01-21	1995-09-25	Ericsson Telefon Ab L M	Förfarande och anordning för generering av en ringsignal
EP0729259B1 (en) *	1995-02-01	2003-06-04	Advanced Micro Devices, Inc.	Ring-signal generation in a slic
US5815569A (en) *	1996-06-27	1998-09-29	Lucent Technologies Inc.	Method for controlling power losses associated with line interface circuits in telecommunications networks
FI104933B (fi) *	1997-11-18	2000-04-28	Nokia Networks Oy	Tilaajajohtoliitäntäpiiri
FI104935B (fi) *	1997-11-18	2000-04-28	Nokia Networks Oy	Tilaajajohtoliitäntäpiiri
FI104934B (fi) *	1997-11-18	2000-04-28	Nokia Networks Oy	Tilaajajohtoliitäntäpiiri
CN1057183C (zh) *	1998-08-15	2000-10-04	深圳市华为电气股份有限公司	铃流发生器的缓起动与过流保护电路
CN1087546C (zh) *	1998-08-15	2002-07-10	深圳市安圣电气有限公司	小功率铃流发生器的次级信号切换电路
IL131117A0 (en) *	1999-07-26	2001-01-28	Eci Telecom Ltd	Sine wave generator suitable for ringer
WO2002021811A2 (en) *	2000-09-06	2002-03-14	Polycom, Inc.	System and method for diagnosing a pots port
US7257222B2 (en) *	2004-04-30	2007-08-14	Infineon Technologies Ag	Ring voltage generation circuit and method for generating a ring voltage
FR2883434B1 (fr) *	2005-03-21	2007-04-20	Commissariat Energie Atomique	Methode et dispositif de demodulation a deux niveaux.
US8379839B2 (en)	2009-08-07	2013-02-19	Microsemi Semiconductor (U.S.) Inc.	Method and apparatus for controlling ringing voltage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2655005C3 (de) *	1976-12-02	1980-04-17	Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin	Schaltungsanordnung für eine elektronische Teilnehmerspeisung
GB1583634A (en) *	1977-03-02	1981-01-28	Int Standard Electric Corp	Subscriber line/trunk circuit
NL7810086A (nl) *	1978-10-06	1980-04-09	Philips Nv	Voedingsbrug voor een abonneestroomloop.
CA1114536A (en) *	1978-12-11	1981-12-15	William B. Kiss	Ringing generator
US4349703A (en) *	1980-03-31	1982-09-14	International Telephone And Telegraph Corporation	Programmable ring signal generator

1981
- 1981-07-09 US US06/281,545 patent/US4431868A/en not_active Expired - Lifetime
1982
- 1982-06-09 DE DE3221693A patent/DE3221693C2/de not_active Expired
- 1982-06-28 SE SE8203970A patent/SE8203970L/ unknown
- 1982-06-30 NO NO822247A patent/NO157039C/no unknown
- 1982-07-06 GB GB08219550A patent/GB2102249B/en not_active Expired
- 1982-07-07 FR FR8211899A patent/FR2509555A1/fr active Granted
- 1982-07-07 BE BE2/59766A patent/BE893779A/fr not_active IP Right Cessation
- 1982-07-07 IT IT22273/82A patent/IT1198388B/it active
- 1982-07-09 ES ES513878A patent/ES513878A0/es active Granted
- 1982-07-09 CH CH4198/82A patent/CH657729A5/de not_active IP Right Cessation

Also Published As

Publication number	Publication date
ES8306556A1 (es)	1983-06-16
SE8203970L (sv)	1983-01-10
NO157039B (no)	1987-09-28
SE8203970D0 (sv)	1982-06-28
FR2509555B1 (no)	1985-02-01
GB2102249A (en)	1983-01-26
IT8222273A0 (it)	1982-07-07
FR2509555A1 (fr)	1983-01-14
DE3221693A1 (de)	1983-01-27
BE893779A (fr)	1983-01-07
CH657729A5 (de)	1986-09-15
DE3221693C2 (de)	1984-01-19
ES513878A0 (es)	1983-06-16
NO822247L (no)	1983-01-10
US4431868A (en)	1984-02-14
IT1198388B (it)	1988-12-21
GB2102249B (en)	1985-03-13

Publication	Publication Date	Title
NO157039C (no)	1988-01-06	Abonnentlinjekrets.
ES512303A0 (es)	1983-09-01	Terminal de comunicaciones.
NO160688C (no)	1989-05-24	Multifaseseparator.
NO813438L (no)	1982-04-26	Digital syntetiseringskrets.
NO813437L (no)	1982-04-26	Digital linjekrets.
NO824317L (no)	1983-06-23	Stroemforsyning.
NL191300C (nl)	1995-05-01	Verstommingsschakeling.
IT8223093A0 (it)	1982-09-02	Alcanoilanilidi.
IT8224720A0 (it)	1982-12-13	Circuito demultiplatore.
NO156732C (no)	1987-11-11	Kjoelesystem.
NO157237C (no)	1988-02-10	Hoeyspenningsomformer.
DE3381983D1 (de)	1990-12-13	Fernsprechschaltung.
ES517099A0 (es)	1983-08-01	Disyuntor de conexion.
NO820856L (no)	1982-09-20	Elektrisk kopling.
NO820768L (no)	1982-09-13	Potethoestemaskin.
NO823299L (no)	1983-04-15	Telefonapparat.
ATE24260T1 (de)	1986-12-15	Teilnehmeranschlussschaltung.
DE3381372D1 (de)	1990-04-26	Endverschluss.
NO823974L (no)	1983-05-30	Serveringsfat-sett.
NL192700B (nl)	1997-08-01	Conversatie-inrichting.
NO822604L (no)	1983-02-01	Sammenkoblings-system.
NO157193C (no)	1988-02-03	Ammunisjons-tilbringer.
ATE14177T1 (de)	1985-07-15	Fernsprechapparat.
ES268968Y (es)	1983-12-16	Regleta de conexiones.
ATE57442T1 (de)	1990-10-15	Schaltungseinheit.