CN100502443C - 在通信系统中控制回声抑制的设备 - Google Patents

在通信系统中控制回声抑制的设备 Download PDF

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Publication number
CN100502443C
CN100502443C CNB988138581A CN98813858A CN100502443C CN 100502443 C CN100502443 C CN 100502443C CN B988138581 A CNB988138581 A CN B988138581A CN 98813858 A CN98813858 A CN 98813858A CN 100502443 C CN100502443 C CN 100502443C
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CN
China
Prior art keywords
echo
suppressor
echo suppressor
noise
speech
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
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CNB988138581A
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English (en)
Chinese (zh)
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CN1294814A (zh
Inventor
E·D·罗梅斯博格
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.)
Clastres LLC
Telefonaktiebolaget LM Ericsson AB
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Ericsson Inc
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Publication of CN1294814A publication Critical patent/CN1294814A/zh
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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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
CNB988138581A 1998-01-09 1998-12-22 在通信系统中控制回声抑制的设备 Expired - Lifetime CN100502443C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/005,144 US6148078A (en) 1998-01-09 1998-01-09 Methods and apparatus for controlling echo suppression in communications systems
US09/005,144 1998-01-09

Publications (2)

Publication Number Publication Date
CN1294814A CN1294814A (zh) 2001-05-09
CN100502443C true CN100502443C (zh) 2009-06-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB988138581A Expired - Lifetime CN100502443C (zh) 1998-01-09 1998-12-22 在通信系统中控制回声抑制的设备

Country Status (12)

Country Link
US (1) US6148078A (enExample)
EP (1) EP1044558B1 (enExample)
JP (1) JP2002501336A (enExample)
KR (1) KR100519001B1 (enExample)
CN (1) CN100502443C (enExample)
AU (1) AU756390B2 (enExample)
BR (1) BR9813791B1 (enExample)
DE (1) DE69820118D1 (enExample)
EE (1) EE200000415A (enExample)
IL (1) IL137182A (enExample)
TR (2) TR200100647T2 (enExample)
WO (1) WO1999035812A1 (enExample)

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US7027591B2 (en) * 2002-10-16 2006-04-11 Ericsson Inc. Integrated noise cancellation and residual echo suppression
JP4282317B2 (ja) * 2002-12-05 2009-06-17 アルパイン株式会社 音声通信装置
US7319748B2 (en) * 2003-01-08 2008-01-15 Nxp B.V. Device and method for suppressing echo in telephones
US7065207B2 (en) * 2003-09-11 2006-06-20 Freescale Semiconductor, Inc. Controlling attenuation during echo suppression
US7099458B2 (en) * 2003-12-12 2006-08-29 Motorola, Inc. Downlink activity and double talk probability detector and method for an echo canceler circuit
US7046794B2 (en) * 2003-12-12 2006-05-16 Motorola, Inc. Double talk activity detector and method for an echo canceler circuit
JP4544040B2 (ja) * 2004-06-17 2010-09-15 パナソニック株式会社 エコーキャンセル装置およびそれを用いた電話機、並びにエコーキャンセル方法
US7856097B2 (en) * 2004-06-17 2010-12-21 Panasonic Corporation Echo canceling apparatus, telephone set using the same, and echo canceling method
US7395790B2 (en) * 2004-11-18 2008-07-08 S&S Cycle, Inc. Reed valve breather for evolution engine
US8457614B2 (en) 2005-04-07 2013-06-04 Clearone Communications, Inc. Wireless multi-unit conference phone
US20070033030A1 (en) * 2005-07-19 2007-02-08 Oded Gottesman Techniques for measurement, adaptation, and setup of an audio communication system
US20070036342A1 (en) * 2005-08-05 2007-02-15 Boillot Marc A Method and system for operation of a voice activity detector
JP4727542B2 (ja) * 2006-09-26 2011-07-20 富士通株式会社 電子機器、そのエコーキャンセル方法、そのエコーキャンセルプログラム、記録媒体及び回路基板
US9966085B2 (en) * 2006-12-30 2018-05-08 Google Technology Holdings LLC Method and noise suppression circuit incorporating a plurality of noise suppression techniques
US20090043577A1 (en) * 2007-08-10 2009-02-12 Ditech Networks, Inc. Signal presence detection using bi-directional communication data
US7809129B2 (en) * 2007-08-31 2010-10-05 Motorola, Inc. Acoustic echo cancellation based on noise environment
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
JP5156043B2 (ja) * 2010-03-26 2013-03-06 株式会社東芝 音声判別装置
US8447595B2 (en) * 2010-06-03 2013-05-21 Apple Inc. Echo-related decisions on automatic gain control of uplink speech signal in a communications device
US8903325B2 (en) 2011-02-21 2014-12-02 Empire Technology Development Llc Using out-band information to improve wireless communications
US9002030B2 (en) 2012-05-01 2015-04-07 Audyssey Laboratories, Inc. System and method for performing voice activity detection
US9936290B2 (en) * 2013-05-03 2018-04-03 Qualcomm Incorporated Multi-channel echo cancellation and noise suppression
GB201308247D0 (en) * 2013-05-08 2013-06-12 Microsoft Corp Noise reduction
GB2519392B (en) * 2014-04-02 2016-02-24 Imagination Tech Ltd Auto-tuning of an acoustic echo canceller
EP2999199B1 (en) 2014-09-16 2018-03-07 Nxp B.V. Mobile device
CN105635379B (zh) * 2015-12-29 2020-02-14 腾讯科技（深圳）有限公司 噪声抑制方法及装置
FR3063566B1 (fr) * 2017-03-06 2019-03-22 Peugeot Citroen Automobiles Sa Procede et systeme de limitation de volume sonore de telephone de voiture
JP6338728B1 (ja) * 2017-03-31 2018-06-06 日本電信電話株式会社 エコーキャンセラ装置
CN107799123B (zh) * 2017-12-14 2021-07-23 南京地平线机器人技术有限公司 控制回声消除器的方法和具有回声消除功能的装置
EP3806489A4 (en) * 2018-06-11 2021-08-11 Sony Group Corporation SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND PROGRAM
JP7187183B2 (ja) * 2018-06-14 2022-12-12 株式会社トランストロン エコー抑圧装置、エコー抑圧方法およびエコー抑圧プログラム
CN111917926B (zh) * 2019-05-09 2021-08-06 上海触乐信息科技有限公司 一种通信终端中的回声消除方法、装置及终端设备
CN110956969B (zh) * 2019-11-28 2022-06-10 北京达佳互联信息技术有限公司 直播音频处理方法、装置、电子设备和存储介质
CN111583087B (zh) * 2020-05-06 2023-09-05 杭州小影创新科技股份有限公司 一种图像去水印方法
CN113763978B (zh) * 2021-04-25 2024-05-03 腾讯科技（深圳）有限公司 语音信号处理方法、装置、电子设备以及存储介质
CN115706875A (zh) * 2021-08-07 2023-02-17 深圳方位通讯科技有限公司 对讲语音质量优化方法、装置、设备及存储介质
CN115440236B (zh) * 2022-08-31 2025-08-29 浙江大华技术股份有限公司 一种回声抑制方法、装置、电子设备及存储介质
US20240251039A1 (en) * 2023-01-20 2024-07-25 Zoom Video Communications, Inc Hybrid digital signal processing-artificial intelligence acoustic echo cancellation for virtual conferences

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5022074A (en) * 1985-07-01 1991-06-04 Rockwell International Corporation Digital echo suppressor
CN1114122A (zh) * 1993-08-27 1995-12-27 莫托罗拉公司 用于回声抑制器的话音作用检测器和回声抑制器

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US5274705A (en) * 1991-09-24 1993-12-28 Tellabs Inc. Nonlinear processor for an echo canceller and method
JPH07123236B2 (ja) * 1992-12-18 1995-12-25 日本電気株式会社 双方向通話状態検出回路
US5475731A (en) * 1994-01-07 1995-12-12 Ericsson Inc. Echo-canceling system and method using echo estimate to modify error signal
GB2295300A (en) * 1994-11-18 1996-05-22 Motorola Israel Ltd Hands-free Duplex radio transceiver apparatus and method of training
JPH08204619A (ja) * 1995-01-26 1996-08-09 Nec Corp エコーサプレッサ
JP2928130B2 (ja) * 1995-04-19 1999-08-03 埼玉日本電気株式会社 ハンズフリー通信装置
US6301357B1 (en) * 1996-12-31 2001-10-09 Ericsson Inc. AC-center clipper for noise and echo suppression in a communications system

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
US5022074A (en) * 1985-07-01 1991-06-04 Rockwell International Corporation Digital echo suppressor
CN1114122A (zh) * 1993-08-27 1995-12-27 莫托罗拉公司 用于回声抑制器的话音作用检测器和回声抑制器

Also Published As

Publication number Publication date
WO1999035812A1 (en) 1999-07-15
IL137182A (en) 2004-09-27
EE200000415A (et) 2001-12-17
JP2002501336A (ja) 2002-01-15
IL137182A0 (en) 2001-07-24
DE69820118D1 (de) 2004-01-08
TR200100647T2 (tr) 2002-06-21
BR9813791A (pt) 2000-10-03
AU1907799A (en) 1999-07-26
HK1037077A1 (zh) 2002-01-25
US6148078A (en) 2000-11-14
CN1294814A (zh) 2001-05-09
AU756390B2 (en) 2003-01-09
EP1044558B1 (en) 2003-11-26
BR9813791B1 (pt) 2013-04-16
TR200001904T2 (tr) 2000-11-21
KR20010033951A (ko) 2001-04-25
KR100519001B1 (ko) 2005-10-06
EP1044558A1 (en) 2000-10-18

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