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ATE265783T1 - Verfahren und vorrichtung zur echoverminderung - Google Patents

Verfahren und vorrichtung zur echoverminderung

Info

Publication number
ATE265783T1
ATE265783T1 AT01972191T AT01972191T ATE265783T1 AT E265783 T1 ATE265783 T1 AT E265783T1 AT 01972191 T AT01972191 T AT 01972191T AT 01972191 T AT01972191 T AT 01972191T AT E265783 T1 ATE265783 T1 AT E265783T1
Authority
AT
Austria
Prior art keywords
constraint
antenna
calculating
forming
pickup device
Prior art date
Application number
AT01972191T
Other languages
English (en)
Inventor
Bernard Debail
Original Assignee
France Telecom
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
Priority claimed from FR0012618A external-priority patent/FR2828326A1/fr
Application filed by France Telecom filed Critical France Telecom
Application granted granted Critical
Publication of ATE265783T1 publication Critical patent/ATE265783T1/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)
  • Circuit For Audible Band Transducer (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Telephone Function (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Revetment (AREA)
AT01972191T 2000-10-03 2001-09-24 Verfahren und vorrichtung zur echoverminderung ATE265783T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0012618A FR2828326A1 (fr) 2000-10-03 2000-10-03 Procede et dispositif de reduction d'echo a la prise de son
FR0109781A FR2828327B1 (fr) 2000-10-03 2001-07-20 Procede et dispositif de reduction d'echo
PCT/FR2001/002957 WO2002030099A1 (fr) 2000-10-03 2001-09-24 Procede et dispositif de reduction d'echo

Publications (1)

Publication Number Publication Date
ATE265783T1 true ATE265783T1 (de) 2004-05-15

Family

ID=26212661

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01972191T ATE265783T1 (de) 2000-10-03 2001-09-24 Verfahren und vorrichtung zur echoverminderung

Country Status (9)

Country Link
US (1) US6718041B2 (de)
EP (1) EP1230784B1 (de)
JP (1) JP2004511182A (de)
AT (1) ATE265783T1 (de)
AU (1) AU2001291979A1 (de)
DE (1) DE60103008D1 (de)
FR (1) FR2828327B1 (de)
NO (1) NO20022630L (de)
WO (1) WO2002030099A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001082650A2 (en) * 2000-04-21 2001-11-01 Keyhold Engineering, Inc. Self-calibrating surround sound system
US20050159187A1 (en) * 2002-03-18 2005-07-21 Greg Mendolia Antenna system and method
GB0321722D0 (en) * 2003-09-16 2003-10-15 Mitel Networks Corp A method for optimal microphone array design under uniform acoustic coupling constraints
DE10362073A1 (de) * 2003-11-06 2005-11-24 Herbert Buchner Vorrichtung und Verfahren zum Verarbeiten eines Eingangssignals
JP3972921B2 (ja) * 2004-05-11 2007-09-05 ソニー株式会社 音声集音装置とエコーキャンセル処理方法
US7508948B2 (en) * 2004-10-05 2009-03-24 Audience, Inc. Reverberation removal
PT1915626E (pt) 2005-08-16 2012-02-03 Genentech Inc Sensibilidade da apoptose a apo2l/trail por ensaio de expressão de galnac-t14 em células/tecidos
US9307321B1 (en) 2011-06-09 2016-04-05 Audience, Inc. Speaker distortion reduction
CN103636236B (zh) 2011-07-01 2016-11-09 杜比实验室特许公司 音频回放系统监视
KR101247652B1 (ko) * 2011-08-30 2013-04-01 광주과학기술원 잡음 제거 장치 및 방법
US9635457B2 (en) * 2014-03-26 2017-04-25 Sennheiser Electronic Gmbh & Co. Kg Audio processing unit and method of processing an audio signal
CN109218920B (zh) * 2017-06-30 2020-09-18 华为技术有限公司 一种信号处理方法、装置及终端
CN107749306B (zh) * 2017-10-31 2020-01-21 维沃移动通信有限公司 一种振动优化的方法及移动终端
US10566008B2 (en) * 2018-03-02 2020-02-18 Cirrus Logic, Inc. Method and apparatus for acoustic echo suppression
US11022511B2 (en) 2018-04-18 2021-06-01 Aron Kain Sensor commonality platform using multi-discipline adaptable sensors for customizable applications
WO2021204400A1 (en) 2020-04-09 2021-10-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for automatic adaption of a loudspeaer to a listening environment

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0435300A (ja) * 1990-05-25 1992-02-06 Nippon Telegr & Teleph Corp <Ntt> 受音処理装置
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
US5313498A (en) * 1991-06-13 1994-05-17 Nec Corporation Method and arrangement of echo elimination in digital telecommunications system
US5222251A (en) * 1992-04-27 1993-06-22 Motorola, Inc. Method for eliminating acoustic echo in a communication device
CA2174366C (en) * 1995-04-20 2001-03-27 Shoji Makino Subband echo cancellation method using projection algorithm
KR100197794B1 (ko) * 1996-05-25 1999-06-15 최승원 무선통신시스템에서 간섭을 최소화하고 잡음의 영향을 줄여주기 위한 신호처리 장치 및 방법
US5796819A (en) * 1996-07-24 1998-08-18 Ericsson Inc. Echo canceller for non-linear circuits
US6041127A (en) * 1997-04-03 2000-03-21 Lucent Technologies Inc. Steerable and variable first-order differential microphone array
JP3411475B2 (ja) * 1997-06-23 2003-06-03 日本電信電話株式会社 収音装置
US6549627B1 (en) * 1998-01-30 2003-04-15 Telefonaktiebolaget Lm Ericsson Generating calibration signals for an adaptive beamformer
JP3714005B2 (ja) * 1998-03-16 2005-11-09 松下電工株式会社 拡声通話機
US6049607A (en) * 1998-09-18 2000-04-11 Lamar Signal Processing Interference canceling method and apparatus
KR20000041527A (ko) * 1998-12-22 2000-07-15 최승원 라그랑제승수법에 의거한 적응 배열 안테나 시스템의 최적의 웨이트벡터 계산을 위한 신호처리 방법 및 장치

Also Published As

Publication number Publication date
WO2002030099A1 (fr) 2002-04-11
US20030105540A1 (en) 2003-06-05
FR2828327B1 (fr) 2003-12-12
AU2001291979A1 (en) 2002-04-15
NO20022630L (no) 2002-07-30
JP2004511182A (ja) 2004-04-08
NO20022630D0 (no) 2002-06-03
US6718041B2 (en) 2004-04-06
EP1230784A1 (de) 2002-08-14
EP1230784B1 (de) 2004-04-28
FR2828327A1 (fr) 2003-02-07
DE60103008D1 (de) 2004-06-03

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Legal Events

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