DE69224401D1 - Teilnehmerleitungsschnittstellenschaltung für ISDN- und POTS-Anwendungen, mit Echokompensationsschaltung - Google Patents

Teilnehmerleitungsschnittstellenschaltung für ISDN- und POTS-Anwendungen, mit Echokompensationsschaltung

Info

Publication number
DE69224401D1
DE69224401D1 DE69224401T DE69224401T DE69224401D1 DE 69224401 D1 DE69224401 D1 DE 69224401D1 DE 69224401 T DE69224401 T DE 69224401T DE 69224401 T DE69224401 T DE 69224401T DE 69224401 D1 DE69224401 D1 DE 69224401D1
Authority
DE
Germany
Prior art keywords
isdn
circuit
subscriber line
line interface
echo cancellation
Prior art date
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.)
Expired - Fee Related
Application number
DE69224401T
Other languages
English (en)
Other versions
DE69224401T2 (de
Inventor
Masanobu Arai
Toshihide Hiraoka
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69224401D1 publication Critical patent/DE69224401D1/de
Publication of DE69224401T2 publication Critical patent/DE69224401T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/001Current supply source at the exchanger providing current to substations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40Circuits
    • H04B1/54Circuits using the same frequency for two directions of communication
    • H04B1/58Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/586Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using an electronic circuit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/005Interface circuits for subscriber lines
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/04Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0435Details
    • H04Q11/0442Exchange access circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2207/00Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
    • H04M2207/08ISDN systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13034A/D conversion, code compression/expansion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13103Memory
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13107Control equipment for a part of the connection, distributed control, co-processing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1316Service observation, testing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1318Ringing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1319Amplifier, attenuation circuit, echo suppressor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13194Four wire connection, transmission
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13209ISDN
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13302Magnetic elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13305Transistors, semiconductors in general
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1332Logic circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13396Signaling in general, in-band signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/19Echo-cancelling; Hybrid; Amplifier; Attenuator

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
DE69224401T 1991-03-08 1992-03-09 Teilnehmerleitungsschnittstellenschaltung für ISDN- und POTS-Anwendungen, mit Echokompensationsschaltung Expired - Fee Related DE69224401T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3043142A JPH04280597A (ja) 1991-03-08 1991-03-08 加入者回路

Publications (2)

Publication Number Publication Date
DE69224401D1 true DE69224401D1 (de) 1998-03-19
DE69224401T2 DE69224401T2 (de) 1998-06-04

Family

ID=12655589

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69224401T Expired - Fee Related DE69224401T2 (de) 1991-03-08 1992-03-09 Teilnehmerleitungsschnittstellenschaltung für ISDN- und POTS-Anwendungen, mit Echokompensationsschaltung

Country Status (5)

Country Link
US (1) US5255317A (de)
EP (1) EP0503528B1 (de)
JP (1) JPH04280597A (de)
CA (1) CA2062526C (de)
DE (1) DE69224401T2 (de)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5459729C1 (en) * 1989-07-25 2002-03-19 Raychem Corp Digital added main line system
AU6175694A (en) * 1993-02-17 1994-09-14 Silicon Systems, Inc. Temperature compensation for trans-hybrid loss in a miniaturized data access arrangement
US5347544A (en) * 1993-05-03 1994-09-13 Teltrend Inc. Gain or loss compensation circuit for telephone lines
US5422950A (en) * 1993-05-03 1995-06-06 Teltrend Inc. Remote terminal channel unit for telephone transmission lines
US5357569A (en) * 1993-05-03 1994-10-18 Teltrend Inc. Trans-hybrid loss compensator for on hook transmission
US5436968A (en) * 1993-06-30 1995-07-25 Harris Corporation Digital data-dependent ac impedance termination of telephone line
US5483530A (en) * 1993-12-16 1996-01-09 International Business Machines Corporation System and method for communicating with digital and analog devices via a single digital interface
US5515433A (en) * 1994-08-30 1996-05-07 Reltec Corporation Resistance forward telephone line feed circuit
US5668814A (en) * 1995-03-20 1997-09-16 Raychem Corporation Dual DDS data multiplexer
US5920846A (en) * 1996-02-27 1999-07-06 Southwestern Bell Telephone Co. Method and system for processing a service request relating to installation, maintenance or repair of telecommunications services provided to a customer premises
JPH10336711A (ja) * 1997-03-31 1998-12-18 Fujitsu Ltd アナログ・ディジタル統合加入者回路
US5889856A (en) * 1997-05-22 1999-03-30 Centillium Technology Corp. ADSL integrated line card with digital splitter and POTS CODEC without bulky analog splitter
US6298065B1 (en) * 1997-08-29 2001-10-02 Lucent Technologies Inc. Method for multi-mode operation of a subscriber line card in a telecommunications system
US6285672B1 (en) * 1997-09-16 2001-09-04 Rockwell Semiconductor Systems, Inc. Method and system for achieving improved data transmission through the public switched telephone network
US6215799B1 (en) 1997-11-24 2001-04-10 3Com Corporation Analog telephone to ISDN interface apparatus and method therefor
US6282204B1 (en) 1997-12-19 2001-08-28 Terayon Communication Systems, Inc. ISDN plus voice multiplexer system
US6396922B1 (en) * 1997-12-30 2002-05-28 Alcatel Usa Sourcing, L.P. Telecommunications terminal card
US6172985B1 (en) 1998-01-28 2001-01-09 Gateway 2000, Inc. Automatic detection of pots line
US6522640B2 (en) 1998-01-28 2003-02-18 Gateway, Inc. Distributed modem for non-cellular cordless/wireless data communication for portable computers
AU2569499A (en) * 1998-01-30 1999-08-16 Utstarcom, Inc. An integrated analog/digital telephone interface
US6839425B1 (en) * 1998-01-30 2005-01-04 Ut Starcom, Inc. Integrated analog/digital telephone network interface circuit design
EP1053629B1 (de) 1998-02-05 2002-05-02 Siemens Aktiengesellschaft Verfahren zur behandlung von durch ein analoges fernsprechendgerät gelieferten fernsprechsignalen und von durch eine datenendeinrichtung gelieferten daten
US6259676B1 (en) * 1998-06-17 2001-07-10 Nokia Telecommunications Oy Upgrading of subscriber connection
DE19833300A1 (de) * 1998-07-24 2000-01-27 Fmn Fernmeldetechnik Gmbh Nord Telekommunikationsendgerät
US6807228B2 (en) 1998-11-13 2004-10-19 Broadcom Corporation Dynamic regulation of power consumption of a high-speed communication system
US6363129B1 (en) * 1998-11-09 2002-03-26 Broadcom Corporation Timing recovery system for a multi-pair gigabit transceiver
US6928106B1 (en) 1998-08-28 2005-08-09 Broadcom Corporation Phy control module for a multi-pair gigabit transceiver
US6542604B1 (en) * 1998-08-31 2003-04-01 Infineon Technologies Ag Scaled impedance replica for echo attenuation in digital transmission systems
US6614802B1 (en) * 1999-01-18 2003-09-02 Lucent Technologies Inc. Telecommunication network with remotely controllable, line multi-interface and telecommunication method
DE60035679T2 (de) * 1999-04-22 2008-06-05 Broadcom Corp., Irvine Gigabit-ethernt mit zeitverschiebungen zwischen verdrillten leitungspaaren
US6694015B1 (en) 2000-03-06 2004-02-17 Lucent Technologies Inc Universal line interface in telecommunications system
US6850618B1 (en) 2000-05-15 2005-02-01 Centillium Communications, Inc. Central office interface techniques for digital subscriber lines
US6836509B1 (en) 2000-07-17 2004-12-28 Lucent Technologies Inc. Dsl- compatible pots line card
US7016374B2 (en) * 2001-04-16 2006-03-21 Cet Technologies Pte Ltd Dual mode ISDN S/U interface converter
KR100450963B1 (ko) * 2001-08-16 2004-10-02 삼성전자주식회사 외장형 디지털 가입자 라인 통신단말의 다잉 개스프 처리방법 및 장치
EP1492292B1 (de) 2002-03-20 2010-12-29 Dounaev, Igor Borisovich Verfahren und systeme zur digitalen datenübertragung
JP4283273B2 (ja) * 2003-03-19 2009-06-24 株式会社ネットインデックス 電力線搬送用モデム結合回路
DE102004039759B4 (de) * 2004-08-17 2019-09-12 Michael Gude Up-Interface-Schaltung
DE102006028183B4 (de) * 2006-06-16 2013-02-28 Michael Gude Elektronische Umschaltung von ISDN-Schnittstellen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4707825A (en) * 1985-08-02 1987-11-17 Gte Laboratories Incorporated Methods of installing and assigning control processors in a distributed-control communications system
SE457923B (sv) * 1987-06-15 1989-02-06 Ellemtel Utvecklings Ab Anordning foer att aastadkomma en styrbar linjeavslutningsimpedans

Also Published As

Publication number Publication date
US5255317A (en) 1993-10-19
DE69224401T2 (de) 1998-06-04
EP0503528A2 (de) 1992-09-16
CA2062526C (en) 1996-01-16
JPH04280597A (ja) 1992-10-06
EP0503528A3 (en) 1993-07-21
EP0503528B1 (de) 1998-02-11
CA2062526A1 (en) 1992-09-09

Similar Documents

Publication Publication Date Title
DE69224401T2 (de) Teilnehmerleitungsschnittstellenschaltung für ISDN- und POTS-Anwendungen, mit Echokompensationsschaltung
DE69228164T2 (de) Rufumleitungstechnik für ankommende Kommunikationen mit Ortsanzeige von angerufenem Teilnehmer
DE69212917D1 (de) Modem mit verbesserter Leitungsschnittstellenschaltung, insbesondere für Rechner
DE69126402T2 (de) Kommunikationssystem mit ISDN-Signalisierung
DE69428068T2 (de) Teilnehmerschnittstellenschaltung
DE69132460D1 (de) ISDN-Schnittstellenschaltung
DE69217505T2 (de) Lichtwellenleiter teilnehmerleitungs-netzwerk
DE69122951D1 (de) Telefongerät mit Identifizierung der Rufleitung
EP0530010A3 (en) Telephone with abbreviated dialling
BR8207583A (pt) Aparelho telefonico de assinante incorporando dispositivos de protecao anti-sobretensao
DE69022299T2 (de) Schnittstellenschaltung für Teilnehmerleitungen in einem Vermittlungssystem.
DE69126422D1 (de) Telefonapparat mit Anruferidentifikation
DE69310507T2 (de) Breitband teilnehmerleitungsschnittstelleschaltung
DE69124737D1 (de) Telefongerät mit Identifizierung der Rufleitung
DE69119007T2 (de) ISDN-Endgerät mit Diagnose-Funktion
DE59003360D1 (de) Zweidraht-Vierdraht-Umsetzer.
DE69305738T2 (de) Impedanznachbildung für eine teilnehmerleitungsschnittstellenschaltung
DE59003361D1 (de) Zweidraht-Vierdraht-Umsetzer.
DE69130370D1 (de) Fernsprechleitungsstecker
EP0442467A3 (en) Dealing board with telephonic functions
IT8467922A1 (it) Congiuntore di abbonato telefonico.
DE69228346T2 (de) Vermittlungsanlage für mobil-zellular Telefonsystem
DE69104538D1 (de) Schnittstellenschaltung für Teilnehmerleitung.
DE68911546D1 (de) Fernsprechsignalverarbeitungsvorrichtung mit für mehrere Teilnehmerleitungen gemeinsame Digitalsignalverarbeitungseinrichtungen.
KR930016877U (ko) 텔리폰라인 스테이터스 체크회로

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee