DE69827066D1 - Verfahren und Vorrichtung zum Kompensieren von Mehrkanalechos - Google Patents

Verfahren und Vorrichtung zum Kompensieren von Mehrkanalechos

Info

Publication number
DE69827066D1
DE69827066D1 DE69827066T DE69827066T DE69827066D1 DE 69827066 D1 DE69827066 D1 DE 69827066D1 DE 69827066 T DE69827066 T DE 69827066T DE 69827066 T DE69827066 T DE 69827066T DE 69827066 D1 DE69827066 D1 DE 69827066D1
Authority
DE
Germany
Prior art keywords
channel echoes
compensating multi
compensating
echoes
channel
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
Application number
DE69827066T
Other languages
English (en)
Other versions
DE69827066T2 (de
Inventor
Akihiko Sugiyama
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Publication of DE69827066D1 publication Critical patent/DE69827066D1/de
Application granted granted Critical
Publication of DE69827066T2 publication Critical patent/DE69827066T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
  • Filters That Use Time-Delay Elements (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Telephone Function (AREA)
DE69827066T 1997-04-15 1998-04-15 Verfahren und Vorrichtung zum Kompensieren von Mehrkanalechos Expired - Fee Related DE69827066T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP9708697 1997-04-15
JP9708697 1997-04-15
JP32058297A JP3152292B2 (ja) 1997-04-15 1997-11-07 多チャネルエコー除去方法及び装置
JP32058297 1997-11-07

Publications (2)

Publication Number Publication Date
DE69827066D1 true DE69827066D1 (de) 2004-11-25
DE69827066T2 DE69827066T2 (de) 2005-03-03

Family

ID=26438293

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69827066T Expired - Fee Related DE69827066T2 (de) 1997-04-15 1998-04-15 Verfahren und Vorrichtung zum Kompensieren von Mehrkanalechos

Country Status (5)

Country Link
US (1) US6700977B2 (de)
EP (1) EP0874514B1 (de)
JP (1) JP3152292B2 (de)
CA (1) CA2234738C (de)
DE (1) DE69827066T2 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7020279B2 (en) * 2001-10-19 2006-03-28 Quartics, Inc. Method and system for filtering a signal and for providing echo cancellation
CA2380246A1 (en) * 2002-04-04 2003-10-04 Catena Networks Canada Inc. Crosstalk masking for digital subscriber loops
JP4209247B2 (ja) * 2003-05-02 2009-01-14 アルパイン株式会社 音声認識装置および方法
KR100555499B1 (ko) * 2003-06-02 2006-03-03 삼성전자주식회사 2차 전방향 네트워크에 독립 해석 알고리즘을 이용하는반주/보이스 분리 장치 및 그 방법
US7916849B2 (en) * 2004-06-02 2011-03-29 Clearone Communications, Inc. Systems and methods for managing the gating of microphones in a multi-pod conference system
US7864937B2 (en) * 2004-06-02 2011-01-04 Clearone Communications, Inc. Common control of an electronic multi-pod conferencing system
US8644525B2 (en) * 2004-06-02 2014-02-04 Clearone Communications, Inc. Virtual microphones in electronic conferencing systems
US8031853B2 (en) * 2004-06-02 2011-10-04 Clearone Communications, Inc. Multi-pod conference systems
JP4533427B2 (ja) 2005-02-21 2010-09-01 富士通株式会社 エコーキャンセラ
US8457614B2 (en) 2005-04-07 2013-06-04 Clearone Communications, Inc. Wireless multi-unit conference phone
US20080273716A1 (en) * 2005-09-27 2008-11-06 Kosuke Saito Feedback Sound Eliminating Apparatus
ATE448638T1 (de) * 2006-04-13 2009-11-15 Fraunhofer Ges Forschung Audiosignaldekorrelator
US8331430B2 (en) * 2006-08-02 2012-12-11 Broadcom Corporation Channel diagnostic systems and methods
US8855329B2 (en) * 2007-01-22 2014-10-07 Silentium Ltd. Quiet fan incorporating active noise control (ANC)
US8081746B2 (en) * 2007-05-22 2011-12-20 Alcatel Lucent Conference bridge with improved handling of control signaling during an ongoing conference
US7813498B2 (en) * 2007-07-27 2010-10-12 Fortemedia, Inc. Full-duplex communication device and method of acoustic echo cancellation therein
JP5472643B2 (ja) * 2008-09-26 2014-04-16 日本電気株式会社 信号処理方法、信号処理装置、および信号処理プログラム
US9497330B2 (en) 2008-09-26 2016-11-15 Nec Corporation Signal processing method, signal processing device, and signal processing program
JP5288622B2 (ja) * 2009-06-16 2013-09-11 シャープ株式会社 無線通信装置、無線通信システムおよび通信方法
JP5649488B2 (ja) * 2011-03-11 2015-01-07 株式会社東芝 音声判別装置、音声判別方法および音声判別プログラム
US9928824B2 (en) 2011-05-11 2018-03-27 Silentium Ltd. Apparatus, system and method of controlling noise within a noise-controlled volume
JP6182524B2 (ja) 2011-05-11 2017-08-16 シレンティウム リミテッド ノイズ・コントロールのデバイス、システム、および方法
JP5741296B2 (ja) * 2011-08-01 2015-07-01 富士通株式会社 通信装置
CN103516921A (zh) 2012-06-28 2014-01-15 杜比实验室特许公司 通过隐藏音频信号的回声控制
US9613634B2 (en) * 2014-06-19 2017-04-04 Yang Gao Control of acoustic echo canceller adaptive filter for speech enhancement
KR101823569B1 (ko) 2014-09-12 2018-01-30 래티스세미컨덕터코퍼레이션 풀 듀풀렉스 통신 시스템에서의 에코 제거를 위한 캘리브레이션
US9653060B1 (en) * 2016-02-09 2017-05-16 Amazon Technologies, Inc. Hybrid reference signal for acoustic echo cancellation
US9659555B1 (en) * 2016-02-09 2017-05-23 Amazon Technologies, Inc. Multichannel acoustic echo cancellation
US10522167B1 (en) * 2018-02-13 2019-12-31 Amazon Techonlogies, Inc. Multichannel noise cancellation using deep neural network masking
US11417351B2 (en) 2018-06-26 2022-08-16 Google Llc Multi-channel echo cancellation with scenario memory

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2792252B2 (ja) * 1991-03-14 1998-09-03 日本電気株式会社 多チャンネルエコー除去方法および装置
US5412735A (en) * 1992-02-27 1995-05-02 Central Institute For The Deaf Adaptive noise reduction circuit for a sound reproduction system
JP2508574B2 (ja) * 1992-11-10 1996-06-19 日本電気株式会社 多チャンネルエコ―除去装置
JPH09266456A (ja) * 1996-03-28 1997-10-07 Mitsubishi Electric Corp エコーキャンセラ
JP2842376B2 (ja) * 1996-05-22 1999-01-06 日本電気株式会社 ハンズフリー電話機
US5896452A (en) * 1996-05-24 1999-04-20 Motorola, Inc. Multi-channel echo canceler and method using convolution of two training signals
US5856970A (en) * 1996-08-05 1999-01-05 Motorola, Inc. Multi-channel echo cancellation method and apparatus
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

Also Published As

Publication number Publication date
CA2234738C (en) 2001-11-06
JP3152292B2 (ja) 2001-04-03
EP0874514B1 (de) 2004-10-20
EP0874514A3 (de) 2003-07-02
EP0874514A2 (de) 1998-10-28
US6700977B2 (en) 2004-03-02
DE69827066T2 (de) 2005-03-03
CA2234738A1 (en) 1998-10-15
JPH114183A (ja) 1999-01-06
US20020101981A1 (en) 2002-08-01

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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