DE60317368D1 - Nichtlinearer akustischer echokompensator - Google Patents

Nichtlinearer akustischer echokompensator

Info

Publication number
DE60317368D1
DE60317368D1 DE60317368T DE60317368T DE60317368D1 DE 60317368 D1 DE60317368 D1 DE 60317368D1 DE 60317368 T DE60317368 T DE 60317368T DE 60317368 T DE60317368 T DE 60317368T DE 60317368 D1 DE60317368 D1 DE 60317368D1
Authority
DE
Germany
Prior art keywords
echo
converter
input
signal
filter
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 - Lifetime
Application number
DE60317368T
Other languages
English (en)
Other versions
DE60317368T2 (de
Inventor
A Stenger
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.)
NXP BV
Original Assignee
NXP BV
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 NXP BV filed Critical NXP BV
Publication of DE60317368D1 publication Critical patent/DE60317368D1/de
Application granted granted Critical
Publication of DE60317368T2 publication Critical patent/DE60317368T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Telephone Function (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
DE60317368T 2003-01-08 2003-12-22 Nichtlinearer akustischer echokompensator Expired - Lifetime DE60317368T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03100017 2003-01-08
EP03100017 2003-01-08
PCT/IB2003/006287 WO2004064366A1 (en) 2003-01-08 2003-12-22 Non-linear acoustic echo canceller

Publications (2)

Publication Number Publication Date
DE60317368D1 true DE60317368D1 (de) 2007-12-20
DE60317368T2 DE60317368T2 (de) 2008-08-28

Family

ID=32695622

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60317368T Expired - Lifetime DE60317368T2 (de) 2003-01-08 2003-12-22 Nichtlinearer akustischer echokompensator

Country Status (8)

Country Link
US (1) US7260213B2 (de)
EP (1) EP1584177B1 (de)
JP (1) JP4541159B2 (de)
CN (1) CN100576866C (de)
AT (1) ATE377904T1 (de)
AU (1) AU2003292470A1 (de)
DE (1) DE60317368T2 (de)
WO (1) WO2004064366A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7433463B2 (en) 2004-08-10 2008-10-07 Clarity Technologies, Inc. Echo cancellation and noise reduction method
US20060217066A1 (en) * 2005-03-25 2006-09-28 Siemens Communications, Inc. Wireless microphone system
US8457614B2 (en) 2005-04-07 2013-06-04 Clearone Communications, Inc. Wireless multi-unit conference phone
US7426270B2 (en) * 2005-08-10 2008-09-16 Clarity Technologies, Inc. Method and system for clear signal capture
JP4765117B2 (ja) * 2006-03-02 2011-09-07 オンセミコンダクター・トレーディング・リミテッド エコー防止回路、フィルタ係数設定方法、及びプログラム
US8199927B1 (en) 2007-10-31 2012-06-12 ClearOnce Communications, Inc. Conferencing system implementing echo cancellation and push-to-talk microphone detection using two-stage frequency filter
US8050398B1 (en) 2007-10-31 2011-11-01 Clearone Communications, Inc. Adaptive conferencing pod sidetone compensator connecting to a telephonic device having intermittent sidetone
JP6243536B2 (ja) 2013-12-12 2017-12-06 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． エコー打ち消し
CN105812994B (zh) * 2014-12-30 2018-08-21 展讯通信（上海）有限公司 一种降低失真回声的方法及装置
CN104835502B (zh) * 2015-05-20 2018-04-10 北京捷思锐科技股份有限公司 音频信号处理方法、装置及电子设备
CN106911872B (zh) * 2017-02-21 2020-04-10 豪威科技(上海)有限公司 降低回声抵消残留的方法及设备
CN109040498B (zh) * 2018-08-12 2022-01-07 瑞声科技（南京）有限公司 一种提升回声抵消效果的方法及其系统
CN112309416B (zh) * 2020-10-20 2022-11-29 中国第一汽车股份有限公司 车载语音回音消除方法、系统、车辆和存储介质

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781720A (en) * 1973-01-04 1973-12-25 Bell Telephone Labor Inc Automatic tap-gain incrementation of adaptive equalizers
JPH06216811A (ja) * 1993-01-20 1994-08-05 Toshiba Corp エコーキャンセラを備えた音声通信装置
US5600714A (en) * 1994-01-14 1997-02-04 Sound Control Technologies, Inc. Conference telephone using dynamic modeled line hybrid
US5828366A (en) * 1995-09-12 1998-10-27 Sarnoff Corporation Non-linear interline flicker reducer
US6198819B1 (en) * 1997-11-14 2001-03-06 Tellabs Operations, Inc. Echo canceller having improved non-linear processor
US6282176B1 (en) * 1998-03-20 2001-08-28 Cirrus Logic, Inc. Full-duplex speakerphone circuit including a supplementary echo suppressor
US6487178B1 (en) 1999-05-12 2002-11-26 Ericsson Inc. Methods and apparatus for providing volume control in communicating systems including a linear echo canceler
JP2001094479A (ja) * 1999-09-20 2001-04-06 Nippon Telegr & Teleph Corp <Ntt> 反響消去装置
US6785382B2 (en) * 2001-02-12 2004-08-31 Signalworks, Inc. System and method for controlling a filter to enhance speakerphone performance
WO2002095975A1 (fr) * 2001-05-22 2002-11-28 Mitsubishi Denki Kabushiki Kaisha Appareil de traitement d'echos

Also Published As

Publication number Publication date
AU2003292470A1 (en) 2004-08-10
EP1584177A1 (de) 2005-10-12
WO2004064366A1 (en) 2004-07-29
JP4541159B2 (ja) 2010-09-08
CN1736090A (zh) 2006-02-15
US20060067519A1 (en) 2006-03-30
JP2006513627A (ja) 2006-04-20
EP1584177B1 (de) 2007-11-07
ATE377904T1 (de) 2007-11-15
DE60317368T2 (de) 2008-08-28
CN100576866C (zh) 2009-12-30
US7260213B2 (en) 2007-08-21

Similar Documents

Publication Publication Date Title
DE60317368D1 (de) Nichtlinearer akustischer echokompensator
DE602006005529D1 (de) Klasse-D Verstärker
WO2004051202A3 (en) Method of audio testing of acoustic devices
FR2874780A1 (fr) Capteur ultrasonore
ATE507687T1 (de) Hörhilfegerät mit einer wandlerschutzeinrichtung
TW200740136A (en) Filter coefficient setting device, filter coefficient setting method, and program
EP0385713A3 (de) Empfangsvorrichtung zur Reduzierung von Rauschen
BRPI0409327A (pt) dispositivo para gerar um sinal de áudio de saìda com base em um sinal de aúdio de entrada, método para prover um sinal de áudio de saìda com base em um sinal de áudio de entrada e aparelho para fornecer um sinal de áudio de saìda
WO2009051197A1 (ja) エコー抑圧方法及び装置
TWI268658B (en) Sampling rate conversion device and method, and audio device
CA2554381A1 (en) Adaptive hybrid transform for signal analysis and synthesis
WO2003034780A3 (en) Signal processing device for acoustic transducer array
CA2240051A1 (en) Hearing aid with compensation of acoustic and/or mechanical feedback
DE602006005228D1 (de) System und Verfahren zur Mehrkanal-Echokompensation
DE602005018023D1 (de) Kompensation des Echos und der Rückkopplung
TW200615902A (en) Adaptive beamformer, sidelobe canceller, handsfree speech communication device
WO2009043842A8 (en) Hearing aid system with feedback arrangement to predict and cancel acoustic feedback, method and use
WO2002001915A3 (en) Device and method for calibration of a microphone
DE602007005806D1 (de) Audioverarbeitung in kommunikationsendgeräten
ATE291323T1 (de) Telefongerät
ATE435527T1 (de) Einstellung des filters eines zeitkontinuerlichen sigma-delta wandlers
RU2010138238A (ru) Цифровая система связи, внутренний блок и внешний блок
DE50312584D1 (de) Rückkopplungskompensator in einem akustischen Verstärkungssystem, Hörhilfsgerät, Verfahren zur Rückkopplungskompensation und Anwendung des Verfahrens in einem Hörhilfsgerät
DE60331476D1 (de) Gerät und verfahren für echounterdrückung, insbesondere für telefone
TW200729959A (en) Media playback system having a real-time displaying capability of displaying images generated from a camera and method thereof

Legal Events

Date Code Title Description
8381 Inventor (new situation)

Inventor name: STENGER, A., 52066 AACHEN, DE

8364 No opposition during term of opposition