ATE280453T1 - Verfahren und vorrichtung für stereoechounterdrückung in einen voip- kommunikationsystemen - Google Patents

Verfahren und vorrichtung für stereoechounterdrückung in einen voip- kommunikationsystemen

Info

Publication number
ATE280453T1
ATE280453T1 AT01920406T AT01920406T ATE280453T1 AT E280453 T1 ATE280453 T1 AT E280453T1 AT 01920406 T AT01920406 T AT 01920406T AT 01920406 T AT01920406 T AT 01920406T AT E280453 T1 ATE280453 T1 AT E280453T1
Authority
AT
Austria
Prior art keywords
secondary audio
echo cancellation
communication system
abstract
voip communication
Prior art date
Application number
AT01920406T
Other languages
English (en)
Inventor
James C H Thi
Theodore F Rabenko
Original Assignee
Broadcom 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 Broadcom Corp filed Critical Broadcom Corp
Application granted granted Critical
Publication of ATE280453T1 publication Critical patent/ATE280453T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/002—Applications of echo suppressors or cancellers in telephonic connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H04M7/129—Details of providing call progress tones or announcements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Telephonic Communication Services (AREA)
AT01920406T 2000-03-15 2001-03-15 Verfahren und vorrichtung für stereoechounterdrückung in einen voip- kommunikationsystemen ATE280453T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US18971300P 2000-03-15 2000-03-15
US09/703,264 US7747002B1 (en) 2000-03-15 2000-10-31 Method and system for stereo echo cancellation for VoIP communication systems
PCT/US2001/008363 WO2001069810A2 (en) 2000-03-15 2001-03-15 A method and system for stereo echo cancellation for voip communication systems

Publications (1)

Publication Number Publication Date
ATE280453T1 true ATE280453T1 (de) 2004-11-15

Family

ID=26885428

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01920406T ATE280453T1 (de) 2000-03-15 2001-03-15 Verfahren und vorrichtung für stereoechounterdrückung in einen voip- kommunikationsystemen

Country Status (6)

Country Link
US (3) US7747002B1 (de)
EP (1) EP1264418B1 (de)
AT (1) ATE280453T1 (de)
AU (1) AU2001247463A1 (de)
DE (1) DE60106582T2 (de)
WO (1) WO2001069810A2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7747002B1 (en) * 2000-03-15 2010-06-29 Broadcom Corporation Method and system for stereo echo cancellation for VoIP communication systems
US7433463B2 (en) * 2004-08-10 2008-10-07 Clarity Technologies, Inc. Echo cancellation and noise reduction method
JP4913155B2 (ja) 2006-01-06 2012-04-11 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 音響エコーキャンセラ
JP4312227B2 (ja) * 2006-11-21 2009-08-12 富士通株式会社 エコー処理方法及び装置
US8634569B2 (en) 2010-01-08 2014-01-21 Conexant Systems, Inc. Systems and methods for echo cancellation and echo suppression
US8478359B2 (en) 2010-06-04 2013-07-02 Apple Inc. User interface tone echo cancellation
WO2012094528A1 (en) 2011-01-05 2012-07-12 Conexant Systems, Inc., A Delaware Corporation Systems and methods for stereo echo cancellation
US9275625B2 (en) * 2013-03-06 2016-03-01 Qualcomm Incorporated Content based noise suppression
JP6064927B2 (ja) * 2014-02-10 2017-01-25 ソニー株式会社 オーディオ機器、音声処理方法、音声処理プログラム、音声出力方法および音声出力プログラム
US9607627B2 (en) * 2015-02-05 2017-03-28 Adobe Systems Incorporated Sound enhancement through deverberation
US10361748B2 (en) * 2017-01-16 2019-07-23 Futurewei Technologies, Inc. Multi-stage echo cancelation scheme to run FDX in coax cable plant
US10998863B2 (en) 2017-10-16 2021-05-04 Analog Devices, Inc. Power amplifier with nulling monitor circuit
US10602270B1 (en) * 2018-11-30 2020-03-24 Microsoft Technology Licensing, Llc Similarity measure assisted adaptation control
US11039015B2 (en) * 2019-03-20 2021-06-15 Zoom Video Communications, Inc. Method and system for facilitating high-fidelity audio sharing
CN110138990A (zh) * 2019-05-14 2019-08-16 浙江工业大学 一种消除移动设备VoIP电话回声的方法

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US3433898A (en) * 1965-09-17 1969-03-18 Automatic Elect Lab Telephone pulse metering system
US4922530A (en) * 1988-03-18 1990-05-01 Tellabs, Inc. Adaptive filter with coefficient averaging and method
JP2654599B2 (ja) 1991-02-27 1997-09-17 日本電気株式会社 ダブルトーク検出回路
US5330800A (en) * 1992-11-04 1994-07-19 Hughes Aircraft Company High impedance plasma ion implantation method and apparatus
US5396517A (en) 1993-03-04 1995-03-07 Adtran Transversal filter useable in echo canceler, decision feedback equalizer applications for minimizing non-linear distortion in signals conveyed over full duplex two-wire communication link
US5600714A (en) * 1994-01-14 1997-02-04 Sound Control Technologies, Inc. Conference telephone using dynamic modeled line hybrid
ZA95599B (en) * 1994-02-28 1996-02-06 Qualcomm Inc Doubletalk detection by means of spectral content
US5570295A (en) * 1994-03-18 1996-10-29 Lucent Technologies Inc. System and method of capturing encoded data transmitted over a communications network in a video system
JP2842345B2 (ja) * 1995-11-29 1999-01-06 日本電気株式会社 エコーキャンセラ
US5706344A (en) * 1996-03-29 1998-01-06 Digisonix, Inc. Acoustic echo cancellation in an integrated audio and telecommunication system
US5928527A (en) * 1996-04-15 1999-07-27 The Boeing Company Surface modification using an atmospheric pressure glow discharge plasma source
FR2762467B1 (fr) 1997-04-16 1999-07-02 France Telecom Procede d'annulation d'echo acoustique multi-voies et annuleur d'echo acoustique multi-voies
US6252900B1 (en) * 1997-06-30 2001-06-26 Integrated Telecom Express, Inc. Forward compatible and expandable high speed communications system and method of operation
US6224447B1 (en) * 1998-06-22 2001-05-01 Micron Technology, Inc. Electrode structures, display devices containing the same, and methods for making the same
US7023812B1 (en) * 2000-02-15 2006-04-04 Siemens Communications, Inc. System and method for improving modem transmission through private branch exchanges, central offices, and other systems
US7747002B1 (en) 2000-03-15 2010-06-29 Broadcom Corporation Method and system for stereo echo cancellation for VoIP communication systems
EP1361593A4 (de) * 2001-01-17 2008-06-04 Matsushita Electric Industrial Co Ltd Plasmaanzeigetafel und verfahren zu ihrer herstellung
CN103763846B (zh) * 2006-02-17 2016-08-31 海别得公司 接触启动式等离子弧焊炬和用于该焊炬的电极、接触元件

Also Published As

Publication number Publication date
US20100266118A1 (en) 2010-10-21
AU2001247463A1 (en) 2001-09-24
US7747002B1 (en) 2010-06-29
US8750493B2 (en) 2014-06-10
DE60106582D1 (de) 2004-11-25
DE60106582T2 (de) 2005-12-01
US8433060B2 (en) 2013-04-30
EP1264418B1 (de) 2004-10-20
WO2001069810A3 (en) 2002-05-23
US20130236004A1 (en) 2013-09-12
EP1264418A2 (de) 2002-12-11
WO2001069810A2 (en) 2001-09-20

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Legal Events

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