DE69224401D1 - Teilnehmerleitungsschnittstellenschaltung für ISDN- und POTS-Anwendungen, mit Echokompensationsschaltung - Google Patents
Teilnehmerleitungsschnittstellenschaltung für ISDN- und POTS-Anwendungen, mit EchokompensationsschaltungInfo
- 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
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details 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
- H04B1/38—Transceivers, 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
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/586—Hybrid 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
-
- 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
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
- H04Q11/0435—Details
- H04Q11/0442—Exchange access circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2207/00—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
- H04M2207/08—ISDN systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13034—A/D conversion, code compression/expansion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13103—Memory
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13107—Control equipment for a part of the connection, distributed control, co-processing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1316—Service observation, testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1318—Ringing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1319—Amplifier, attenuation circuit, echo suppressor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13194—Four wire connection, transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13209—ISDN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13302—Magnetic elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13305—Transistors, semiconductors in general
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1332—Logic circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13396—Signaling in general, in-band signalling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/19—Echo-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)
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)
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)
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 |
-
1991
- 1991-03-08 JP JP3043142A patent/JPH04280597A/ja active Pending
-
1992
- 1992-03-09 EP EP92103985A patent/EP0503528B1/de not_active Expired - Lifetime
- 1992-03-09 CA CA002062526A patent/CA2062526C/en not_active Expired - Fee Related
- 1992-03-09 DE DE69224401T patent/DE69224401T2/de not_active Expired - Fee Related
- 1992-03-09 US US07/847,732 patent/US5255317A/en not_active Expired - Fee Related
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 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |