DE602007005228D1 - Akustischer echokompensator - Google Patents

Akustischer echokompensator

Info

Publication number
DE602007005228D1
DE602007005228D1 DE602007005228T DE602007005228T DE602007005228D1 DE 602007005228 D1 DE602007005228 D1 DE 602007005228D1 DE 602007005228 T DE602007005228 T DE 602007005228T DE 602007005228 T DE602007005228 T DE 602007005228T DE 602007005228 D1 DE602007005228 D1 DE 602007005228D1
Authority
DE
Germany
Prior art keywords
signal
echo
aggregate
echo cancellation
input signal
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.)
Active
Application number
DE602007005228T
Other languages
English (en)
Inventor
David A C M Roovers
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE602007005228D1 publication Critical patent/DE602007005228D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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)
  • Circuit For Audible Band Transducer (AREA)
DE602007005228T 2006-01-06 2007-01-03 Akustischer echokompensator Active DE602007005228D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06100125 2006-01-06
PCT/IB2007/050011 WO2007077536A1 (en) 2006-01-06 2007-01-03 Acoustic echo canceller

Publications (1)

Publication Number Publication Date
DE602007005228D1 true DE602007005228D1 (de) 2010-04-22

Family

ID=37891889

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007005228T Active DE602007005228D1 (de) 2006-01-06 2007-01-03 Akustischer echokompensator

Country Status (7)

Country Link
US (1) US8155302B2 (de)
EP (1) EP1982509B1 (de)
JP (1) JP4913155B2 (de)
CN (1) CN101366265B (de)
AT (1) ATE460809T1 (de)
DE (1) DE602007005228D1 (de)
WO (1) WO2007077536A1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101536540A (zh) * 2006-11-10 2009-09-16 皇家飞利浦电子股份有限公司 信号处理系统和方法
JP5394373B2 (ja) * 2007-06-21 2014-01-22 コーニンクレッカ フィリップス エヌ ヴェ オーディオ信号を処理する装置及び方法
US7813498B2 (en) * 2007-07-27 2010-10-12 Fortemedia, Inc. Full-duplex communication device and method of acoustic echo cancellation therein
CN101453532B (zh) * 2007-11-30 2013-03-20 博通集成电路（上海）有限公司 用于扬声器开关中的声音处理装置
JP4852068B2 (ja) * 2008-05-20 2012-01-11 日本電信電話株式会社 ステレオ音響エコーキャンセル方法、ステレオ音響エコーキャンセル装置、ステレオ音響エコーキャンセルプログラム、その記録媒体
JP5356160B2 (ja) * 2009-09-04 2013-12-04 アルプス電気株式会社 ハンズフリー通信システム及び近距離無線通信装置
US8462193B1 (en) * 2010-01-08 2013-06-11 Polycom, Inc. Method and system for processing audio signals
US8634569B2 (en) * 2010-01-08 2014-01-21 Conexant Systems, Inc. Systems and methods for echo cancellation and echo suppression
WO2012094528A1 (en) * 2011-01-05 2012-07-12 Conexant Systems, Inc., A Delaware Corporation Systems and methods for stereo echo cancellation
US20140079232A1 (en) * 2011-05-19 2014-03-20 Nec Corporation Audio processing device, audio processing method, and recording medium recording audio processing program
EP2615739B1 (de) 2012-01-16 2015-06-17 Nxp B.V. Prozessor für einen FM-Signalempfänger und Verarbeitungsverfahren
US9065895B2 (en) 2012-02-22 2015-06-23 Broadcom Corporation Non-linear echo cancellation
CN102964136A (zh) * 2012-11-23 2013-03-13 山东鲁阳股份有限公司 利用叶腊石和蓝晶石天然原料生产轻质隔热砖的方法
TWI469650B (zh) * 2012-11-29 2015-01-11 Quanta Comp Inc 回音消除系統
US9595997B1 (en) * 2013-01-02 2017-03-14 Amazon Technologies, Inc. Adaption-based reduction of echo and noise
GB201309781D0 (en) 2013-05-31 2013-07-17 Microsoft Corp Echo cancellation
US9195860B1 (en) 2014-01-10 2015-11-24 Seagate Technology Llc Adaptively combining waveforms
GB201414352D0 (en) 2014-08-13 2014-09-24 Microsoft Corp Reversed echo canceller
GB2525051B (en) 2014-09-30 2016-04-13 Imagination Tech Ltd Detection of acoustic echo cancellation
US10122863B2 (en) * 2016-09-13 2018-11-06 Microsemi Semiconductor (U.S.) Inc. Full duplex voice communication system and method
EP3563562B1 (de) * 2016-12-30 2022-10-12 Harman Becker Automotive Systems GmbH Unterdrückung von akustischem echo
US11017792B2 (en) * 2019-06-17 2021-05-25 Bose Corporation Modular echo cancellation unit
CN111370016B (zh) * 2020-03-20 2023-11-10 北京声智科技有限公司 一种回声消除方法及电子设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8701633A (nl) 1987-07-10 1989-02-01 Philips Nv Digitale echocompensator.
JP2842607B2 (ja) * 1989-03-13 1999-01-06 株式会社日立製作所 エコーキャンセラ、それを備えた通信装置および信号処理方法
US5818945A (en) * 1995-04-20 1998-10-06 Nippon Telegraph And Telephone Subband echo cancellation method using projection algorithm
US5631899A (en) * 1995-05-31 1997-05-20 Lucent Technologies Inc. Acoustic echo canceler
CN1166160C (zh) * 1996-05-31 2004-09-08 皇家菲利浦电子有限公司 抑制输入信号中干扰成分的设备
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
US6147979A (en) * 1997-08-12 2000-11-14 Lucent Technologies, Inc. System and method for echo cancellation in a communication system
JP3877271B2 (ja) * 1999-11-05 2007-02-07 アルパイン株式会社 音声認識用オーディオキャンセル装置
US7747002B1 (en) 2000-03-15 2010-06-29 Broadcom Corporation Method and system for stereo echo cancellation for VoIP communication systems
JP2003249996A (ja) * 2002-02-25 2003-09-05 Kobe Steel Ltd 音声信号入出力装置
US7054437B2 (en) * 2003-06-27 2006-05-30 Nokia Corporation Statistical adaptive-filter controller
JP4297003B2 (ja) * 2004-07-09 2009-07-15 ヤマハ株式会社 適応ハウリングキャンセラ
US7813499B2 (en) * 2005-03-31 2010-10-12 Microsoft Corporation System and process for regression-based residual acoustic echo suppression

Also Published As

Publication number Publication date
US20080304675A1 (en) 2008-12-11
EP1982509A1 (de) 2008-10-22
CN101366265A (zh) 2009-02-11
CN101366265B (zh) 2012-06-20
JP2009522904A (ja) 2009-06-11
US8155302B2 (en) 2012-04-10
EP1982509B1 (de) 2010-03-10
WO2007077536A1 (en) 2007-07-12
JP4913155B2 (ja) 2012-04-11
ATE460809T1 (de) 2010-03-15

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