JP5049277B2 - クリアな信号の取得のための方法及びシステム - Google Patents

クリアな信号の取得のための方法及びシステム Download PDF

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JP5049277B2
JP5049277B2 JP2008526155A JP2008526155A JP5049277B2 JP 5049277 B2 JP5049277 B2 JP 5049277B2 JP 2008526155 A JP2008526155 A JP 2008526155A JP 2008526155 A JP2008526155 A JP 2008526155A JP 5049277 B2 JP5049277 B2 JP 5049277B2
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signal
adaptive filter
filter
echo
nonlinear
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JP2009505501A (ja
Inventor
アルベス，ロジェリオ，ジイ．
イェン，クアン−チエ
フート ギア，レスター，スーン
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クラリティー テクノロジーズ，インク．
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    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Small-Scale Networks (AREA)
JP2008526155A 2005-08-10 2006-08-09 クリアな信号の取得のための方法及びシステム Expired - Fee Related JP5049277B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/200,575 US7426270B2 (en) 2005-08-10 2005-08-10 Method and system for clear signal capture
US11/200,575 2005-08-10
PCT/US2006/031001 WO2007021722A2 (en) 2005-08-10 2006-08-09 Method and system for clear signal capture

Related Child Applications (1)

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JP2011248486A Division JP5450567B2 (ja) 2005-08-10 2011-11-14 クリアな信号の取得のための方法及びシステム

Publications (2)

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JP2009505501A JP2009505501A (ja) 2009-02-05
JP5049277B2 true JP5049277B2 (ja) 2012-10-17

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JP2008526155A Expired - Fee Related JP5049277B2 (ja) 2005-08-10 2006-08-09 クリアな信号の取得のための方法及びシステム
JP2011248486A Expired - Fee Related JP5450567B2 (ja) 2005-08-10 2011-11-14 クリアな信号の取得のための方法及びシステム

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JP2011248486A Expired - Fee Related JP5450567B2 (ja) 2005-08-10 2011-11-14 クリアな信号の取得のための方法及びシステム

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US (1) US7426270B2 (enExample)
EP (1) EP1912601A4 (enExample)
JP (2) JP5049277B2 (enExample)
WO (1) WO2007021722A2 (enExample)

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EP2512040B1 (en) 2011-04-14 2013-11-13 Alcatel Lucent A computation saving echo canceller for a wide band audio signal
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US9100090B2 (en) * 2013-12-20 2015-08-04 Csr Technology Inc. Acoustic echo cancellation (AEC) for a close-coupled speaker and microphone system
CN104751854A (zh) * 2013-12-26 2015-07-01 联芯科技有限公司 一种宽带声学回声消除方法及系统
KR101501279B1 (ko) * 2013-12-31 2015-03-11 서울대학교산학협력단 인접 범위 내의 시간 또는 주파수 상관관계 기반의 음향학적 스테레오 에코 제거 방법 및 시스템
US9306606B2 (en) * 2014-06-10 2016-04-05 The Boeing Company Nonlinear filtering using polyphase filter banks
US9254798B1 (en) * 2014-09-24 2016-02-09 General Motors Llc Vehicle telematics unit power management
US9973633B2 (en) 2014-11-17 2018-05-15 At&T Intellectual Property I, L.P. Pre-distortion system for cancellation of nonlinear distortion in mobile devices
US9837065B2 (en) * 2014-12-08 2017-12-05 Ford Global Technologies, Llc Variable bandwidth delayless subband algorithm for broadband active noise control system
US9712866B2 (en) 2015-04-16 2017-07-18 Comigo Ltd. Cancelling TV audio disturbance by set-top boxes in conferences
US10276145B2 (en) 2017-04-24 2019-04-30 Cirrus Logic, Inc. Frequency-domain adaptive noise cancellation system
US11062717B2 (en) * 2018-06-20 2021-07-13 Mimi Hearing Technologies GmbH Systems and methods for processing an audio signal for replay on an audio device
US11837248B2 (en) 2019-12-18 2023-12-05 Dolby Laboratories Licensing Corporation Filter adaptation step size control for echo cancellation
US11336367B1 (en) * 2021-03-12 2022-05-17 Iena Corporation Low-power pre-compensation of linear and nonlinear transmitter effects in narrow-spectrum optical signals

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KR20060016789A (ko) * 2003-05-27 2006-02-22 코닌클리케 필립스 일렉트로닉스 엔.브이. 에코 제거 시스템을 가진 확성기-마이크로폰 시스템 및에코 제거 방법

Also Published As

Publication number Publication date
WO2007021722A2 (en) 2007-02-22
JP2009505501A (ja) 2009-02-05
US20070041575A1 (en) 2007-02-22
JP5450567B2 (ja) 2014-03-26
US7426270B2 (en) 2008-09-16
JP2012085314A (ja) 2012-04-26
EP1912601A4 (en) 2009-08-12
EP1912601A2 (en) 2008-04-23
WO2007021722A3 (en) 2007-05-03

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