CN102025395A - 回波抵消器 - Google Patents

回波抵消器 Download PDF

Info

Publication number
CN102025395A
CN102025395A CN2010102088907A CN201010208890A CN102025395A CN 102025395 A CN102025395 A CN 102025395A CN 2010102088907 A CN2010102088907 A CN 2010102088907A CN 201010208890 A CN201010208890 A CN 201010208890A CN 102025395 A CN102025395 A CN 102025395A
Authority
CN
China
Prior art keywords
mentioned
echo
signal
tap
frequency
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.)
Pending
Application number
CN2010102088907A
Other languages
English (en)
Chinese (zh)
Inventor
高田真资
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Publication of CN102025395A publication Critical patent/CN102025395A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Arrangements for interconnection not involving centralised switching
    • H04M9/08Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082Two-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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Filters That Use Time-Delay Elements (AREA)
CN2010102088907A 2009-09-09 2010-06-18 回波抵消器 Pending CN102025395A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009208337A JP5321372B2 (ja) 2009-09-09 2009-09-09 エコーキャンセラ
JP2009-208337 2009-09-09

Publications (1)

Publication Number Publication Date
CN102025395A true CN102025395A (zh) 2011-04-20

Family

ID=43647777

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102088907A Pending CN102025395A (zh) 2009-09-09 2010-06-18 回波抵消器

Country Status (3)

Country Link
US (1) US8280037B2 (enExample)
JP (1) JP5321372B2 (enExample)
CN (1) CN102025395A (enExample)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102904608A (zh) * 2011-07-27 2013-01-30 索尼公司 回声去除装置、回声去除方法、程序以及记录介质
CN103329450A (zh) * 2011-05-10 2013-09-25 三菱电机株式会社 回波消除装置以及回波检测装置
CN103988451A (zh) * 2011-12-20 2014-08-13 英特尔公司 通过相同射频载波同时进行传送和接收的技术
CN107801235A (zh) * 2016-09-02 2018-03-13 马维尔国际贸易有限公司 通信系统中的回波或干扰消除功率节省管理系统和方法
US9923592B2 (en) 2015-12-26 2018-03-20 Intel Corporation Echo cancellation using minimal complexity in a device
US10044527B2 (en) 2014-02-25 2018-08-07 Intel Corporation Apparatus, system and method of simultaneous transmit and receive (STR) wireless communication
WO2019056372A1 (en) * 2017-09-25 2019-03-28 Global Silicon Limited ADAPTIVE FILTER
CN111052767A (zh) * 2017-08-28 2020-04-21 索尼公司 音频处理装置、音频处理方法以及信息处理装置

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1950739B1 (de) * 2007-01-23 2011-09-14 Siemens Aktiengesellschaft Österreich Verfahren zur Identifikation von Signalen gleichen Ursprungs
JP5347794B2 (ja) * 2009-07-21 2013-11-20 ヤマハ株式会社 エコー抑圧方法およびその装置
US8340278B2 (en) * 2009-11-20 2012-12-25 Texas Instruments Incorporated Method and apparatus for cross-talk resistant adaptive noise canceller
JP6363324B2 (ja) * 2010-10-08 2018-09-12 日本電気株式会社 信号処理装置、信号処理方法、及び信号処理プログラム
JP5510288B2 (ja) * 2010-11-24 2014-06-04 沖電気工業株式会社 適応フィルタ次数制御装置及びプログラム、並びに、エコーキャンセラ
US8908877B2 (en) 2010-12-03 2014-12-09 Cirrus Logic, Inc. Ear-coupling detection and adjustment of adaptive response in noise-canceling in personal audio devices
WO2012075343A2 (en) 2010-12-03 2012-06-07 Cirrus Logic, Inc. Oversight control of an adaptive noise canceler in a personal audio device
US20120140940A1 (en) * 2010-12-07 2012-06-07 Electronics And Telecommunications Research Institute Method and device for cancelling acoustic echo
US9318094B2 (en) * 2011-06-03 2016-04-19 Cirrus Logic, Inc. Adaptive noise canceling architecture for a personal audio device
US9824677B2 (en) 2011-06-03 2017-11-21 Cirrus Logic, Inc. Bandlimiting anti-noise in personal audio devices having adaptive noise cancellation (ANC)
US8958571B2 (en) 2011-06-03 2015-02-17 Cirrus Logic, Inc. MIC covering detection in personal audio devices
JP6064159B2 (ja) * 2011-07-11 2017-01-25 パナソニックIpマネジメント株式会社 エコーキャンセル装置、それを用いた会議システム、およびエコーキャンセル方法
TWI474638B (zh) * 2011-11-08 2015-02-21 Realtek Semiconductor Corp 消除傳輸埠間干擾之網路裝置及其消除傳輸埠間干擾之方法
JP5823845B2 (ja) * 2011-12-14 2015-11-25 ラピスセミコンダクタ株式会社 エコーキャンセラ装置及びエコーキャンセル方法
US9232071B2 (en) 2011-12-16 2016-01-05 Qualcomm Incorporated Optimizing audio processing functions by dynamically compensating for variable distances between speaker(s) and microphone(s) in a mobile device
US9654609B2 (en) 2011-12-16 2017-05-16 Qualcomm Incorporated Optimizing audio processing functions by dynamically compensating for variable distances between speaker(s) and microphone(s) in an accessory device
US9318090B2 (en) 2012-05-10 2016-04-19 Cirrus Logic, Inc. Downlink tone detection and adaptation of a secondary path response model in an adaptive noise canceling system
US9123321B2 (en) 2012-05-10 2015-09-01 Cirrus Logic, Inc. Sequenced adaptation of anti-noise generator response and secondary path response in an adaptive noise canceling system
KR20150002784A (ko) * 2012-06-08 2015-01-07 인텔 코포레이션 장기 지연된 에코에 대한 에코 소거 알고리즘
US9767828B1 (en) * 2012-06-27 2017-09-19 Amazon Technologies, Inc. Acoustic echo cancellation using visual cues
US9532139B1 (en) 2012-09-14 2016-12-27 Cirrus Logic, Inc. Dual-microphone frequency amplitude response self-calibration
US9414150B2 (en) 2013-03-14 2016-08-09 Cirrus Logic, Inc. Low-latency multi-driver adaptive noise canceling (ANC) system for a personal audio device
US9697847B2 (en) * 2013-03-14 2017-07-04 Semiconductor Components Industries, Llc Acoustic signal processing system capable of detecting double-talk and method
US9324311B1 (en) 2013-03-15 2016-04-26 Cirrus Logic, Inc. Robust adaptive noise canceling (ANC) in a personal audio device
US8879720B2 (en) * 2013-03-17 2014-11-04 Revolabs, Inc. Acoustic echo cancellation using a variable length adaptive filter
US10206032B2 (en) 2013-04-10 2019-02-12 Cirrus Logic, Inc. Systems and methods for multi-mode adaptive noise cancellation for audio headsets
US9462376B2 (en) 2013-04-16 2016-10-04 Cirrus Logic, Inc. Systems and methods for hybrid adaptive noise cancellation
US9460701B2 (en) 2013-04-17 2016-10-04 Cirrus Logic, Inc. Systems and methods for adaptive noise cancellation by biasing anti-noise level
US9478210B2 (en) 2013-04-17 2016-10-25 Cirrus Logic, Inc. Systems and methods for hybrid adaptive noise cancellation
US9578432B1 (en) 2013-04-24 2017-02-21 Cirrus Logic, Inc. Metric and tool to evaluate secondary path design in adaptive noise cancellation systems
US9154187B2 (en) * 2013-05-24 2015-10-06 Nxp B.V. System and method for operating a filter for echo cancellation
GB201309779D0 (en) * 2013-05-31 2013-07-17 Microsoft Corp Echo removal
GB201309773D0 (en) 2013-05-31 2013-07-17 Microsoft Corp Echo removal
US9666176B2 (en) 2013-09-13 2017-05-30 Cirrus Logic, Inc. Systems and methods for adaptive noise cancellation by adaptively shaping internal white noise to train a secondary path
US9620101B1 (en) 2013-10-08 2017-04-11 Cirrus Logic, Inc. Systems and methods for maintaining playback fidelity in an audio system with adaptive noise cancellation
US10219071B2 (en) 2013-12-10 2019-02-26 Cirrus Logic, Inc. Systems and methods for bandlimiting anti-noise in personal audio devices having adaptive noise cancellation
US9704472B2 (en) 2013-12-10 2017-07-11 Cirrus Logic, Inc. Systems and methods for sharing secondary path information between audio channels in an adaptive noise cancellation system
US10382864B2 (en) 2013-12-10 2019-08-13 Cirrus Logic, Inc. Systems and methods for providing adaptive playback equalization in an audio device
US9479860B2 (en) 2014-03-07 2016-10-25 Cirrus Logic, Inc. Systems and methods for enhancing performance of audio transducer based on detection of transducer status
US10181315B2 (en) 2014-06-13 2019-01-15 Cirrus Logic, Inc. Systems and methods for selectively enabling and disabling adaptation of an adaptive noise cancellation system
US9478212B1 (en) 2014-09-03 2016-10-25 Cirrus Logic, Inc. Systems and methods for use of adaptive secondary path estimate to control equalization in an audio device
JP6201949B2 (ja) * 2014-10-08 2017-09-27 株式会社Jvcケンウッド エコーキャンセル装置、エコーキャンセルプログラム及びエコーキャンセル方法
US9552805B2 (en) 2014-12-19 2017-01-24 Cirrus Logic, Inc. Systems and methods for performance and stability control for feedback adaptive noise cancellation
WO2017029550A1 (en) 2015-08-20 2017-02-23 Cirrus Logic International Semiconductor Ltd Feedback adaptive noise cancellation (anc) controller and method having a feedback response partially provided by a fixed-response filter
US9578415B1 (en) 2015-08-21 2017-02-21 Cirrus Logic, Inc. Hybrid adaptive noise cancellation system with filtered error microphone signal
US10013966B2 (en) 2016-03-15 2018-07-03 Cirrus Logic, Inc. Systems and methods for adaptive active noise cancellation for multiple-driver personal audio device
CN105872156B (zh) * 2016-05-25 2019-02-12 腾讯科技(深圳)有限公司 一种回声时延跟踪方法及装置
WO2018026372A1 (en) * 2016-08-04 2018-02-08 Hewlett-Packard Development Company, L.P. Frequency band selection
US10594869B2 (en) * 2017-08-03 2020-03-17 Bose Corporation Mitigating impact of double talk for residual echo suppressors
US10542153B2 (en) 2017-08-03 2020-01-21 Bose Corporation Multi-channel residual echo suppression
EP3692704B1 (en) 2017-10-03 2023-09-06 Bose Corporation Spatial double-talk detector
EP3692703B9 (en) * 2017-10-04 2021-11-17 proactivaudio GmbH Echo canceller and method therefor
US11363147B2 (en) 2018-09-25 2022-06-14 Sorenson Ip Holdings, Llc Receive-path signal gain operations
KR102167469B1 (ko) * 2018-12-19 2020-10-19 주식회사 이엠텍 피드백 처리 방법
JP6635394B1 (ja) 2019-01-29 2020-01-22 パナソニックIpマネジメント株式会社 音声処理装置および音声処理方法
US10964305B2 (en) 2019-05-20 2021-03-30 Bose Corporation Mitigating impact of double talk for residual echo suppressors
CN112491443B (zh) * 2019-09-11 2022-10-28 瑞昱半导体股份有限公司 具有回音消除省电机制的电子系统及相关回音消除方法
CN113067955B (zh) * 2019-12-13 2024-03-08 瑞昱半导体股份有限公司 通信装置及回音消除方法
TWI793486B (zh) * 2020-12-28 2023-02-21 智原科技股份有限公司 通訊裝置中的回音消除裝置及其回音消除方法
US11875810B1 (en) 2021-09-29 2024-01-16 Amazon Technologies, Inc. Echo cancellation using neural networks for environments with unsynchronized devices for audio capture and rendering
JP7756052B2 (ja) * 2022-07-07 2025-10-17 株式会社トランストロン エコー抑圧装置、エコー抑圧方法及びエコー抑圧プログラム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5796725A (en) * 1994-08-31 1998-08-18 Nec Corporation Echo canceller capable of cancelling an echo signal at a high speed
US20040037417A1 (en) * 2001-08-29 2004-02-26 Michael Seibert Subband echo location and double-talk detection in communciation systems
US20070058798A1 (en) * 2003-11-05 2007-03-15 Oki Electric Industry Co., Ltd. Echo canceller

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04119713A (ja) * 1990-09-10 1992-04-21 Fujitsu Ltd 適応フィルタ係数推定時に使用する修正定数の設定方法
JPH0537825A (ja) * 1991-07-29 1993-02-12 Sanyo Electric Co Ltd 自動等化回路
JPH08251079A (ja) 1995-03-07 1996-09-27 Fujitsu Ltd エコーキャンセラ
JP3417159B2 (ja) 1995-08-11 2003-06-16 Kddi株式会社 エコーキャンセラ装置
JP2000341178A (ja) * 1999-05-27 2000-12-08 Fujitsu Ltd ハンズフリー通話装置
JP2006157498A (ja) 2004-11-30 2006-06-15 Matsushita Electric Ind Co Ltd 音響エコーキャンセラとそれを用いたハンズフリー電話及び音響エコーキャンセル方法
JP4613705B2 (ja) * 2005-06-15 2011-01-19 沖電気工業株式会社 エコーキャンセラ
JP4692291B2 (ja) * 2006-01-13 2011-06-01 沖電気工業株式会社 エコーキャンセラ
JP5061853B2 (ja) * 2007-11-06 2012-10-31 沖電気工業株式会社 エコーキャンセラ及びエコーキャンセルプログラム
JP5096179B2 (ja) * 2008-01-28 2012-12-12 ルネサスエレクトロニクス株式会社 適応等化装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5796725A (en) * 1994-08-31 1998-08-18 Nec Corporation Echo canceller capable of cancelling an echo signal at a high speed
US20040037417A1 (en) * 2001-08-29 2004-02-26 Michael Seibert Subband echo location and double-talk detection in communciation systems
US20070058798A1 (en) * 2003-11-05 2007-03-15 Oki Electric Industry Co., Ltd. Echo canceller

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103329450A (zh) * 2011-05-10 2013-09-25 三菱电机株式会社 回波消除装置以及回波检测装置
CN103329450B (zh) * 2011-05-10 2015-02-11 三菱电机株式会社 回波消除装置以及回波检测装置
CN102904608A (zh) * 2011-07-27 2013-01-30 索尼公司 回声去除装置、回声去除方法、程序以及记录介质
CN103988451A (zh) * 2011-12-20 2014-08-13 英特尔公司 通过相同射频载波同时进行传送和接收的技术
CN103988451B (zh) * 2011-12-20 2017-09-12 英特尔公司 通过相同射频载波同时进行传送和接收的设备和方法
US10044527B2 (en) 2014-02-25 2018-08-07 Intel Corporation Apparatus, system and method of simultaneous transmit and receive (STR) wireless communication
US9923592B2 (en) 2015-12-26 2018-03-20 Intel Corporation Echo cancellation using minimal complexity in a device
CN107801235A (zh) * 2016-09-02 2018-03-13 马维尔国际贸易有限公司 通信系统中的回波或干扰消除功率节省管理系统和方法
CN107801235B (zh) * 2016-09-02 2022-03-18 马维尔亚洲私人有限公司 通信系统中的回波或干扰消除功率节省管理系统和方法
CN111052767A (zh) * 2017-08-28 2020-04-21 索尼公司 音频处理装置、音频处理方法以及信息处理装置
US11245983B2 (en) 2017-08-28 2022-02-08 Sony Corporation Audio processing device and method for echo cancellation
CN111052767B (zh) * 2017-08-28 2022-04-15 索尼公司 音频处理装置、音频处理方法以及信息处理装置
WO2019056372A1 (en) * 2017-09-25 2019-03-28 Global Silicon Limited ADAPTIVE FILTER
CN111201712A (zh) * 2017-09-25 2020-05-26 全球硅片有限公司 自适应滤波器
CN111201712B (zh) * 2017-09-25 2023-04-21 全球硅片有限公司 自适应滤波器

Also Published As

Publication number Publication date
US20110058667A1 (en) 2011-03-10
US8280037B2 (en) 2012-10-02
JP5321372B2 (ja) 2013-10-23
JP2011061449A (ja) 2011-03-24

Similar Documents

Publication Publication Date Title
CN102025395A (zh) 回波抵消器
JP3922997B2 (ja) エコーキャンセラ
EP1998539B1 (en) Double talk detection method based on spectral acoustic properties
KR100233463B1 (ko) 반향제거장치 및 방법
US6044068A (en) Silence-improved echo canceller
CN102164210A (zh) 用于回声消除和回声抑制的系统和方法
JP2011514706A (ja) エコー抑制のためのフィルタ係数を演算する装置および方法
CN103718538A (zh) 用于实现声学回声消除的非线性后期处理
JPH114288A (ja) エコーキャンセラ装置
US9602922B1 (en) Adaptive echo cancellation
JP2000196507A (ja) 多重化回線用エコ―除去の方法及び装置
US5715309A (en) Conversion of compressed speech codes between attenuated and unattenuated formats
KR20000070020A (ko) 혼합된 고정 소수점 또는 부동 소수점 및 블럭 스케일 부동 소수점 연산자를 가진 적응 필터 시스템
US7991146B2 (en) Anti-howling structure
JP4945429B2 (ja) エコー抑圧処理装置
JP4403776B2 (ja) エコーキャンセラ
JP3611493B2 (ja) エコーキャンセラ装置
US20070121926A1 (en) Double-talk detector for an acoustic echo canceller
TWI268093B (en) Echo cancellers for sparse channels
JP2578308B2 (ja) 適応的エコー除去装置
JP4551817B2 (ja) ノイズレベル推定方法及びその装置
JP2010118793A (ja) 伝搬遅延時間推定器、プログラム及び方法、並びにエコーキャンセラ
JP3727800B2 (ja) エコーキャンセラ及びこのエコーキャンセラを備えた音声通信装置
JP3180739B2 (ja) 適応フィルタによる未知システム同定の方法及び装置
JP3616523B2 (ja) エコーキャンセラ

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20110420

WD01 Invention patent application deemed withdrawn after publication