NO20022630L - Fremgangsmåte og anordning for reduksjon av ekko - Google Patents

Fremgangsmåte og anordning for reduksjon av ekko

Info

Publication number
NO20022630L
NO20022630L NO20022630A NO20022630A NO20022630L NO 20022630 L NO20022630 L NO 20022630L NO 20022630 A NO20022630 A NO 20022630A NO 20022630 A NO20022630 A NO 20022630A NO 20022630 L NO20022630 L NO 20022630L
Authority
NO
Norway
Prior art keywords
echo reduction
reduction method
constraint
antenna
calculating
Prior art date
Application number
NO20022630A
Other languages
English (en)
Other versions
NO20022630D0 (no
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
Publication of NO20022630D0 publication Critical patent/NO20022630D0/no
Publication of NO20022630L publication Critical patent/NO20022630L/no

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)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Revetment (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Telephone Function (AREA)
NO20022630A 2000-10-03 2002-06-03 Fremgangsmåte og anordning for reduksjon av ekko NO20022630L (no)

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 (2)

Publication Number Publication Date
NO20022630D0 NO20022630D0 (no) 2002-06-03
NO20022630L true NO20022630L (no) 2002-07-30

Family

ID=26212661

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20022630A NO20022630L (no) 2000-10-03 2002-06-03 Fremgangsmåte og anordning for reduksjon av ekko

Country Status (9)

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

Families Citing this family (15)

* 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
DE10351793B4 (de) * 2003-11-06 2006-01-12 Herbert Buchner Adaptive Filtervorrichtung und Verfahren zum Verarbeiten eines akustischen 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
DK1915626T3 (da) 2005-08-16 2012-02-13 Genentech Inc Apoptosesensitivitet mod Apo2L/TRAIL ved testning for GalNac-T14-ekspression i celler/væv
US9307321B1 (en) 2011-06-09 2016-04-05 Audience, Inc. Speaker distortion reduction
US9462399B2 (en) * 2011-07-01 2016-10-04 Dolby Laboratories Licensing Corporation Audio playback system monitoring
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

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
AU659842B2 (en) * 1991-06-13 1995-06-01 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
US20030105540A1 (en) 2003-06-05
ATE265783T1 (de) 2004-05-15
EP1230784A1 (fr) 2002-08-14
WO2002030099A1 (fr) 2002-04-11
EP1230784B1 (fr) 2004-04-28
US6718041B2 (en) 2004-04-06
FR2828327A1 (fr) 2003-02-07
JP2004511182A (ja) 2004-04-08
FR2828327B1 (fr) 2003-12-12
NO20022630D0 (no) 2002-06-03
AU2001291979A1 (en) 2002-04-15
DE60103008D1 (de) 2004-06-03

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Legal Events

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