ATE377904T1 - Nichtlinearer akustischer echokompensator - Google Patents

Nichtlinearer akustischer echokompensator

Info

Publication number
ATE377904T1
ATE377904T1 AT03768051T AT03768051T ATE377904T1 AT E377904 T1 ATE377904 T1 AT E377904T1 AT 03768051 T AT03768051 T AT 03768051T AT 03768051 T AT03768051 T AT 03768051T AT E377904 T1 ATE377904 T1 AT E377904T1
Authority
AT
Austria
Prior art keywords
echo
converter
input
signal
filter
Prior art date
Application number
AT03768051T
Other languages
English (en)
Inventor
A Stenger
Original Assignee
Nxp Bv
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 Nxp Bv filed Critical Nxp Bv
Application granted granted Critical
Publication of ATE377904T1 publication Critical patent/ATE377904T1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
AT03768051T 2003-01-08 2003-12-22 Nichtlinearer akustischer echokompensator ATE377904T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03100017 2003-01-08

Publications (1)

Publication Number Publication Date
ATE377904T1 true ATE377904T1 (de) 2007-11-15

Family

ID=32695622

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03768051T ATE377904T1 (de) 2003-01-08 2003-12-22 Nichtlinearer akustischer echokompensator

Country Status (8)

Country Link
US (1) US7260213B2 (de)
EP (1) EP1584177B1 (de)
JP (1) JP4541159B2 (de)
CN (1) CN100576866C (de)
AT (1) ATE377904T1 (de)
AU (1) AU2003292470A1 (de)
DE (1) DE60317368T2 (de)
WO (1) WO2004064366A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7433463B2 (en) * 2004-08-10 2008-10-07 Clarity Technologies, Inc. Echo cancellation and noise reduction method
US20060217066A1 (en) * 2005-03-25 2006-09-28 Siemens Communications, Inc. Wireless microphone system
US8457614B2 (en) 2005-04-07 2013-06-04 Clearone Communications, Inc. Wireless multi-unit conference phone
US7426270B2 (en) * 2005-08-10 2008-09-16 Clarity Technologies, Inc. Method and system for clear signal capture
JP4765117B2 (ja) * 2006-03-02 2011-09-07 オンセミコンダクター・トレーディング・リミテッド エコー防止回路、フィルタ係数設定方法、及びプログラム
US8199927B1 (en) 2007-10-31 2012-06-12 ClearOnce Communications, Inc. Conferencing system implementing echo cancellation and push-to-talk microphone detection using two-stage frequency filter
US8050398B1 (en) 2007-10-31 2011-11-01 Clearone Communications, Inc. Adaptive conferencing pod sidetone compensator connecting to a telephonic device having intermittent sidetone
WO2015086229A1 (en) 2013-12-12 2015-06-18 Koninklijke Philips N.V. Echo cancellation
CN105812994B (zh) * 2014-12-30 2018-08-21 展讯通信（上海）有限公司 一种降低失真回声的方法及装置
CN104835502B (zh) * 2015-05-20 2018-04-10 北京捷思锐科技股份有限公司 音频信号处理方法、装置及电子设备
CN106911872B (zh) * 2017-02-21 2020-04-10 豪威科技(上海)有限公司 降低回声抵消残留的方法及设备
CN109040498B (zh) * 2018-08-12 2022-01-07 瑞声科技（南京）有限公司 一种提升回声抵消效果的方法及其***
CN112309416B (zh) * 2020-10-20 2022-11-29 中国第一汽车股份有限公司 车载语音回音消除方法、***、车辆和存储介质

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781720A (en) * 1973-01-04 1973-12-25 Bell Telephone Labor Inc Automatic tap-gain incrementation of adaptive equalizers
JPH06216811A (ja) * 1993-01-20 1994-08-05 Toshiba Corp エコーキャンセラを備えた音声通信装置
US5600714A (en) * 1994-01-14 1997-02-04 Sound Control Technologies, Inc. Conference telephone using dynamic modeled line hybrid
US5828366A (en) * 1995-09-12 1998-10-27 Sarnoff Corporation Non-linear interline flicker reducer
US6198819B1 (en) * 1997-11-14 2001-03-06 Tellabs Operations, Inc. Echo canceller having improved non-linear processor
US6282176B1 (en) * 1998-03-20 2001-08-28 Cirrus Logic, Inc. Full-duplex speakerphone circuit including a supplementary echo suppressor
US6487178B1 (en) 1999-05-12 2002-11-26 Ericsson Inc. Methods and apparatus for providing volume control in communicating systems including a linear echo canceler
JP2001094479A (ja) * 1999-09-20 2001-04-06 Nippon Telegr & Teleph Corp <Ntt> 反響消去装置
US6785382B2 (en) * 2001-02-12 2004-08-31 Signalworks, Inc. System and method for controlling a filter to enhance speakerphone performance
WO2002095975A1 (fr) * 2001-05-22 2002-11-28 Mitsubishi Denki Kabushiki Kaisha Appareil de traitement d'echos

Also Published As

Publication number Publication date
DE60317368D1 (de) 2007-12-20
DE60317368T2 (de) 2008-08-28
JP4541159B2 (ja) 2010-09-08
CN1736090A (zh) 2006-02-15
EP1584177A1 (de) 2005-10-12
US20060067519A1 (en) 2006-03-30
CN100576866C (zh) 2009-12-30
US7260213B2 (en) 2007-08-21
AU2003292470A1 (en) 2004-08-10
EP1584177B1 (de) 2007-11-07
WO2004064366A1 (en) 2004-07-29
JP2006513627A (ja) 2006-04-20

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Legal Events

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