ATE262755T1 - Skalierte impedanzreplika für echo-dämpfung in digitalen übertragungssystemen - Google Patents

Skalierte impedanzreplika für echo-dämpfung in digitalen übertragungssystemen

Info

Publication number
ATE262755T1
ATE262755T1 AT99944501T AT99944501T ATE262755T1 AT E262755 T1 ATE262755 T1 AT E262755T1 AT 99944501 T AT99944501 T AT 99944501T AT 99944501 T AT99944501 T AT 99944501T AT E262755 T1 ATE262755 T1 AT E262755T1
Authority
AT
Austria
Prior art keywords
replica
digital transmission
replicas
echo attenuation
impedance
Prior art date
Application number
AT99944501T
Other languages
English (en)
Inventor
Thomas Blon
Martin Groepl
Michael Moyal
Daniel M Joffe
Original Assignee
Infineon Technologies Ag
Adtran Inc
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 Infineon Technologies Ag, Adtran Inc filed Critical Infineon Technologies Ag
Application granted granted Critical
Publication of ATE262755T1 publication Critical patent/ATE262755T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Interface Circuits In Exchanges (AREA)
AT99944501T 1998-08-31 1999-08-24 Skalierte impedanzreplika für echo-dämpfung in digitalen übertragungssystemen ATE262755T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/144,820 US6542604B1 (en) 1998-08-31 1998-08-31 Scaled impedance replica for echo attenuation in digital transmission systems
PCT/EP1999/006210 WO2000013335A1 (en) 1998-08-31 1999-08-24 Scaled impedance replica for echo attenuation in digital transmission systems

Publications (1)

Publication Number Publication Date
ATE262755T1 true ATE262755T1 (de) 2004-04-15

Family

ID=22510293

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99944501T ATE262755T1 (de) 1998-08-31 1999-08-24 Skalierte impedanzreplika für echo-dämpfung in digitalen übertragungssystemen

Country Status (8)

Country Link
US (1) US6542604B1 (de)
EP (1) EP1110332B1 (de)
JP (1) JP4340012B2 (de)
KR (1) KR100429673B1 (de)
CN (1) CN1174560C (de)
AT (1) ATE262755T1 (de)
DE (1) DE69915844T2 (de)
WO (1) WO2000013335A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6956944B1 (en) * 1999-12-14 2005-10-18 Orckit Communications, Ltd. Method and apparatus for compensating for an echo signal component in telecommunication systems
US7145943B2 (en) * 2000-01-25 2006-12-05 Sbc Knowledge Ventures, L.P. XDSL system with improved impedance circuitry
US6980644B1 (en) * 2000-05-12 2005-12-27 National Semiconductor Corporation System and method for adapting an analog echo canceller in a transceiver front end
DE10030123A1 (de) 2000-06-20 2002-01-03 Infineon Technologies Ag Schaltungsanordnung zur analogen Echounterdrückung
US6738415B2 (en) * 2001-03-22 2004-05-18 Sun Microsystems, Inc. Bi-directional communication system
US7020277B1 (en) * 2001-12-05 2006-03-28 Lsi Logic Corporation DSL line interface having low-pass filter characteristic with reduced external components
DE10247208A1 (de) * 2002-10-10 2004-04-22 Infineon Technologies Ag Brückenschaltung zur Echounterdrückung in Kommunikationseinrichtungen
CN110753425A (zh) * 2019-09-30 2020-02-04 浙江凯耀照明有限责任公司 一种从电感抽取低压向芯片供电电路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899382A (en) 1988-06-15 1990-02-06 Siemens Transmission Systems, Inc. Telephone circuit using DC blocked transformer and negative impedance technique
JPH04280597A (ja) 1991-03-08 1992-10-06 Nec Corp 加入者回路
JPH0851651A (ja) 1994-06-24 1996-02-20 Harris Corp 加入者線インタフェース回路及びインピーダンス整合方法並びにハイブリッド間エコーキャンセレーション方法
US6181791B1 (en) * 1998-01-06 2001-01-30 Stmicroelectronics, Inc. Apparatus and method for reducing local interference in subscriber loop communication system

Also Published As

Publication number Publication date
KR100429673B1 (ko) 2004-05-03
WO2000013335A1 (en) 2000-03-09
EP1110332A1 (de) 2001-06-27
CN1174560C (zh) 2004-11-03
DE69915844D1 (de) 2004-04-29
JP4340012B2 (ja) 2009-10-07
KR20010099635A (ko) 2001-11-09
DE69915844T2 (de) 2005-04-21
CN1317173A (zh) 2001-10-10
US6542604B1 (en) 2003-04-01
JP2002524910A (ja) 2002-08-06
EP1110332B1 (de) 2004-03-24

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Legal Events

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