ATE474377T1 - Asymmetrisches mehrkanalfilter - Google Patents

Asymmetrisches mehrkanalfilter

Info

Publication number
ATE474377T1
ATE474377T1 AT01273470T AT01273470T ATE474377T1 AT E474377 T1 ATE474377 T1 AT E474377T1 AT 01273470 T AT01273470 T AT 01273470T AT 01273470 T AT01273470 T AT 01273470T AT E474377 T1 ATE474377 T1 AT E474377T1
Authority
AT
Austria
Prior art keywords
sub
channel filter
filters
filter
inputs
Prior art date
Application number
AT01273470T
Other languages
English (en)
Inventor
Gerardus Egelmeers
Jean Jallet
Original Assignee
Koninkl 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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE474377T1 publication Critical patent/ATE474377T1/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Noise Elimination (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
AT01273470T 2001-01-23 2001-12-19 Asymmetrisches mehrkanalfilter ATE474377T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01200235 2001-01-23
PCT/IB2001/002672 WO2002060057A1 (en) 2001-01-23 2001-12-19 Asymmetric multichannel filter

Publications (1)

Publication Number Publication Date
ATE474377T1 true ATE474377T1 (de) 2010-07-15

Family

ID=8179789

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01273470T ATE474377T1 (de) 2001-01-23 2001-12-19 Asymmetrisches mehrkanalfilter

Country Status (8)

Country Link
US (1) US6885750B2 (de)
EP (1) EP1356589B1 (de)
JP (1) JP4221222B2 (de)
KR (1) KR100825214B1 (de)
AT (1) ATE474377T1 (de)
DE (1) DE60142583D1 (de)
ES (1) ES2348835T3 (de)
WO (1) WO2002060057A1 (de)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6368343B1 (en) * 2000-03-13 2002-04-09 Peter M. Bonutti Method of using ultrasonic vibration to secure body tissue
US6990193B2 (en) * 2002-11-29 2006-01-24 Mitel Knowledge Corporation Method of acoustic echo cancellation in full-duplex hands free audio conferencing with spatial directivity
KR100480789B1 (ko) * 2003-01-17 2005-04-06 삼성전자주식회사 피드백 구조를 이용한 적응적 빔 형성방법 및 장치
KR100556365B1 (ko) * 2003-07-07 2006-03-03 엘지전자 주식회사 음성 인식장치 및 방법
JP2005084253A (ja) * 2003-09-05 2005-03-31 Matsushita Electric Ind Co Ltd 音響処理装置、方法、プログラム及び記憶媒体
US9704502B2 (en) * 2004-07-30 2017-07-11 Invention Science Fund I, Llc Cue-aware privacy filter for participants in persistent communications
US8521828B2 (en) 2004-07-30 2013-08-27 The Invention Science Fund I, Llc Themes indicative of participants in persistent communication
US8977250B2 (en) * 2004-08-27 2015-03-10 The Invention Science Fund I, Llc Context-aware filter for participants in persistent communication
US9779750B2 (en) * 2004-07-30 2017-10-03 Invention Science Fund I, Llc Cue-aware privacy filter for participants in persistent communications
EP1848243B1 (de) * 2006-04-18 2009-02-18 Harman/Becker Automotive Systems GmbH System und Verfahren zur Mehrkanal-Echokompensation
ATE445966T1 (de) * 2006-05-08 2009-10-15 Harman Becker Automotive Sys Echoverringerung für zeitvariante systeme
ATE436151T1 (de) * 2006-05-10 2009-07-15 Harman Becker Automotive Sys Kompensation von mehrkanalechos durch dekorrelation
US8275120B2 (en) * 2006-05-30 2012-09-25 Microsoft Corp. Adaptive acoustic echo cancellation
ATE522078T1 (de) * 2006-12-18 2011-09-15 Harman Becker Automotive Sys Echokompensation mit geringer komplexität
EP1995940B1 (de) * 2007-05-22 2011-09-07 Harman Becker Automotive Systems GmbH Verfahren und Vorrichtung zur Verarbeitung mindestens zweier Mikrofonsignale zur Sendung eines Ausgangssignals mit reduzierter Interferenz
EP2222091B1 (de) 2009-02-23 2013-04-24 Nuance Communications, Inc. Verfahren zum Bestimmen eines Satzes von Filterkoeffizienten für ein Mittel zur Kompensierung von akustischem Echo
KR101930907B1 (ko) * 2011-05-30 2019-03-12 삼성전자주식회사 오디오 신호 처리 방법, 그에 따른 오디오 장치, 및 그에 따른 전자기기
US8666751B2 (en) * 2011-11-17 2014-03-04 Microsoft Corporation Audio pattern matching for device activation
US9143862B2 (en) * 2012-12-17 2015-09-22 Microsoft Corporation Correlation based filter adaptation
US9565493B2 (en) 2015-04-30 2017-02-07 Shure Acquisition Holdings, Inc. Array microphone system and method of assembling the same
US9554207B2 (en) 2015-04-30 2017-01-24 Shure Acquisition Holdings, Inc. Offset cartridge microphones
JP6843992B2 (ja) * 2016-11-23 2021-03-17 テレフオンアクチーボラゲット エルエム エリクソン（パブル） 相関分離フィルタの適応制御のための方法および装置
US9881632B1 (en) * 2017-01-04 2018-01-30 2236008 Ontario Inc. System and method for echo suppression for in-car communications
US10367948B2 (en) 2017-01-13 2019-07-30 Shure Acquisition Holdings, Inc. Post-mixing acoustic echo cancellation systems and methods
US10013995B1 (en) * 2017-05-10 2018-07-03 Cirrus Logic, Inc. Combined reference signal for acoustic echo cancellation
CN112335261B (zh) 2018-06-01 2023-07-18 舒尔获得控股公司 图案形成麦克风阵列
US11297423B2 (en) 2018-06-15 2022-04-05 Shure Acquisition Holdings, Inc. Endfire linear array microphone
US11310596B2 (en) 2018-09-20 2022-04-19 Shure Acquisition Holdings, Inc. Adjustable lobe shape for array microphones
US11277685B1 (en) * 2018-11-05 2022-03-15 Amazon Technologies, Inc. Cascaded adaptive interference cancellation algorithms
US11438691B2 (en) 2019-03-21 2022-09-06 Shure Acquisition Holdings, Inc. Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition functionality
US11303981B2 (en) 2019-03-21 2022-04-12 Shure Acquisition Holdings, Inc. Housings and associated design features for ceiling array microphones
US11558693B2 (en) 2019-03-21 2023-01-17 Shure Acquisition Holdings, Inc. Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality
WO2020237206A1 (en) 2019-05-23 2020-11-26 Shure Acquisition Holdings, Inc. Steerable speaker array, system, and method for the same
WO2020243471A1 (en) 2019-05-31 2020-12-03 Shure Acquisition Holdings, Inc. Low latency automixer integrated with voice and noise activity detection
EP4018680A1 (de) 2019-08-23 2022-06-29 Shure Acquisition Holdings, Inc. Zweidimensionale mikrofonanordnung mit verbesserter richtcharakteristik
US12028678B2 (en) 2019-11-01 2024-07-02 Shure Acquisition Holdings, Inc. Proximity microphone
US11552611B2 (en) 2020-02-07 2023-01-10 Shure Acquisition Holdings, Inc. System and method for automatic adjustment of reference gain
USD944776S1 (en) 2020-05-05 2022-03-01 Shure Acquisition Holdings, Inc. Audio device
WO2021243368A2 (en) 2020-05-29 2021-12-02 Shure Acquisition Holdings, Inc. Transducer steering and configuration systems and methods using a local positioning system
JP2024505068A (ja) 2021-01-28 2024-02-02 シュアー アクイジッション ホールディングス インコーポレイテッド ハイブリッドオーディオビーム形成システム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829378A (en) * 1988-06-09 1989-05-09 Bell Communications Research, Inc. Sub-band coding of images with low computational complexity
US5793875A (en) * 1996-04-22 1998-08-11 Cardinal Sound Labs, Inc. Directional hearing system
JP3216704B2 (ja) * 1997-08-01 2001-10-09 日本電気株式会社 適応アレイ装置
FR2793629B1 (fr) * 1999-05-12 2001-08-03 Matra Nortel Communications Procede et dispositif d'annulation d'echo stereophonique a filtrage dans le domaine frequentiel
KR100723283B1 (ko) * 1999-06-24 2007-05-30 코닌클리케 필립스 일렉트로닉스 엔.브이. 음향 에코 및 잡음 제거 적응성 필터

Also Published As

Publication number Publication date
US20020176585A1 (en) 2002-11-28
EP1356589A1 (de) 2003-10-29
US6885750B2 (en) 2005-04-26
JP4221222B2 (ja) 2009-02-12
WO2002060057A1 (en) 2002-08-01
EP1356589B1 (de) 2010-07-14
DE60142583D1 (de) 2010-08-26
ES2348835T3 (es) 2010-12-15
JP2004518178A (ja) 2004-06-17
KR100825214B1 (ko) 2008-04-25
KR20020086671A (ko) 2002-11-18

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