AU2001274791A1 - Method of generating a ring signal in a subscriber line interface circuit - Google Patents

Method of generating a ring signal in a subscriber line interface circuit

Info

Publication number: AU2001274791A1
Authority: AU; Australia
Prior art keywords: ring signal; voltage; interface circuit; line interface; subscriber line
Prior art date: 2000-06-21
Legal status (The legal status 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 status listed.): Abandoned

Application number

AU2001274791A

Other languages

English (en)

Inventor

Anders Emericks

Henrik Hellberg

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Telefonaktiebolaget LM Ericsson AB

Original Assignee

Telefonaktiebolaget LM Ericsson AB

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.)

2000-06-21

Filing date

2001-06-21

Publication date

2002-01-02

2001-06-21 Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB

2002-01-02 Publication of AU2001274791A1 publication Critical patent/AU2001274791A1/en

Status Abandoned legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/02—Calling substations, e.g. by ringing
- H04M3/06—Calling substations, e.g. by ringing the calling signal being supplied from the subscriber's line circuit
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
- H04M3/305—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance

Landscapes

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

AU2001274791A 2000-06-21 2001-06-21 Method of generating a ring signal in a subscriber line interface circuit Abandoned AU2001274791A1 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
SE0002350A SE0002350L (sv)	2000-06-21	2000-06-21	En metod att generera en ringsignal i en abonnentlinjekrets
SE0002350		2000-06-21
PCT/SE2001/001446 WO2001099394A1 (en)	2000-06-21	2001-06-21	Method of generating a ring signal in a subscriber line interface circuit

Publications (1)

Publication Number	Publication Date
AU2001274791A1 true AU2001274791A1 (en)	2002-01-02

Family

ID=20280205

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU2001274791A Abandoned AU2001274791A1 (en)	2000-06-21	2001-06-21	Method of generating a ring signal in a subscriber line interface circuit

Country Status (8)

Country	Link
US (1)	US6973181B2 (de)
EP (1)	EP1303972B1 (de)
AT (1)	ATE355698T1 (de)
AU (1)	AU2001274791A1 (de)
DE (1)	DE60126949T2 (de)
SE (1)	SE0002350L (de)
TW (1)	TW524007B (de)
WO (1)	WO2001099394A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB0322894D0 (en) *	2003-09-30	2003-10-29	British Telecomm	Telephony system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5511118A (en) *	1991-01-31	1996-04-23	Northern Telecom Limited	Method of providing d.c. feed to a telephone line
US5392349A (en) *	1992-05-18	1995-02-21	At&T Corp.	Overvoltage protection scheme for subscriber loops and method of performing same
SE9400186D0 (sv) *	1994-01-21	1994-01-21	Ericsson Telefon Ab L M	Förfarande i ett telekommunikationssystem
US5691658A (en) *	1994-05-24	1997-11-25	Imp, Inc.	Current mode amplifier, rectifier and multi-function circuit
JPH0851652A (ja)	1994-06-29	1996-02-20	Harris Corp	電話システム用回路、インピーダンス設定回路、加入者線インタフェース回路、並びに接地キー検出器
US5649009A (en) *	1994-11-14	1997-07-15	Harris Corporation	Differential longitudinal amplifier for a subscriber line interface circuit
SE509626C2 (sv) *	1997-06-06	1999-02-15	Ericsson Telefon Ab L M	Förfarande för att reglera signalutrymmet i en abonnentlinjekrets jämte abonnentlinjekrets
FI104934B (fi) *	1997-11-18	2000-04-28	Nokia Networks Oy	Tilaajajohtoliitäntäpiiri
US6233335B1 (en) *	1998-05-15	2001-05-15	Intersil Corporation	Battery switching subscriber loop interface circuit
US6665398B1 (en) *	1998-09-01	2003-12-16	Christopher Ludeman	Programmable subscriber loop interface circuit and method
DE59812453D1 (de) *	1998-10-29	2005-02-03	Infineon Technologies Ag	Schaltungsanordnung zum Speisen einer Telefonteilnehmerschleife mit einer Speisespannung
DE69927927D1 (de) *	1998-12-31	2005-12-01	St Microelectronics Srl	Monolitisch integrierte Teilnehmerschaltungsanordnung zur treiben einer Breitbandleitung für datenübertragung
US6570984B1 (en) *	1999-04-20	2003-05-27	Eci Telecom Ltd.	Ring trip detection circuit and method for subscriber line interface
US6735302B1 (en) *	1999-05-28	2004-05-11	Broadcom Corporation	DSP based SLIC architecture with current-sensing voltage synthesis impedance matching and DC feed control

2000
- 2000-06-21 SE SE0002350A patent/SE0002350L/ not_active Application Discontinuation
2001
- 2001-03-09 TW TW090105560A patent/TW524007B/zh not_active IP Right Cessation
- 2001-06-21 AU AU2001274791A patent/AU2001274791A1/en not_active Abandoned
- 2001-06-21 AT AT01941436T patent/ATE355698T1/de not_active IP Right Cessation
- 2001-06-21 WO PCT/SE2001/001446 patent/WO2001099394A1/en not_active Ceased
- 2001-06-21 DE DE60126949T patent/DE60126949T2/de not_active Expired - Lifetime
- 2001-06-21 EP EP01941436A patent/EP1303972B1/de not_active Expired - Lifetime
2002
- 2002-12-18 US US10/323,542 patent/US6973181B2/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP1303972A1 (de)	2003-04-23
US6973181B2 (en)	2005-12-06
DE60126949D1 (de)	2007-04-12
ATE355698T1 (de)	2006-03-15
WO2001099394A1 (en)	2001-12-27
SE0002350D0 (sv)	2000-06-21
US20030133564A1 (en)	2003-07-17
TW524007B (en)	2003-03-11
SE0002350L (sv)	2001-12-22
WO2001099394A8 (en)	2002-02-28
EP1303972B1 (de)	2007-02-28
DE60126949T2 (de)	2007-11-15

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