AU756390B2 - Methods and apparatus for controlling echo suppression in communications systems - Google Patents
Methods and apparatus for controlling echo suppression in communications systems Download PDFInfo
- Publication number
- AU756390B2 AU756390B2 AU19077/99A AU1907799A AU756390B2 AU 756390 B2 AU756390 B2 AU 756390B2 AU 19077/99 A AU19077/99 A AU 19077/99A AU 1907799 A AU1907799 A AU 1907799A AU 756390 B2 AU756390 B2 AU 756390B2
- Authority
- AU
- Australia
- Prior art keywords
- echo
- suppressor
- noise
- suppression device
- echo suppressor
- 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
Links
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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
- 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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/005144 | 1998-01-09 | ||
| US09/005,144 US6148078A (en) | 1998-01-09 | 1998-01-09 | Methods and apparatus for controlling echo suppression in communications systems |
| PCT/US1998/026231 WO1999035812A1 (en) | 1998-01-09 | 1998-12-22 | Methods and apparatus for controlling echo suppression in communications systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU1907799A AU1907799A (en) | 1999-07-26 |
| AU756390B2 true AU756390B2 (en) | 2003-01-09 |
Family
ID=21714404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU19077/99A Expired AU756390B2 (en) | 1998-01-09 | 1998-12-22 | Methods and apparatus for controlling echo suppression in communications systems |
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) |
Families Citing this family (50)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3579245B2 (ja) * | 1998-03-31 | 2004-10-20 | 三洋電機株式会社 | エコーキャンセラの制御方法およびエコー除去装置 |
| US6526140B1 (en) * | 1999-11-03 | 2003-02-25 | Tellabs Operations, Inc. | Consolidated voice activity detection and noise estimation |
| US6760435B1 (en) * | 2000-02-08 | 2004-07-06 | Lucent Technologies Inc. | Method and apparatus for network speech enhancement |
| US7050575B1 (en) | 2000-06-16 | 2006-05-23 | Ericsson Inc. | Echo canceler coefficient update apparatus and method |
| DE10030926A1 (de) * | 2000-06-24 | 2002-01-03 | Alcatel Sa | Störsignalabhängige adaptive Echounterdrückung |
| JP3553008B2 (ja) * | 2000-09-26 | 2004-08-11 | 岩崎通信機株式会社 | エコー低減方法および電話装置 |
| US6889066B2 (en) * | 2001-03-27 | 2005-05-03 | Qualcomm Incorporated | Network echo suppression in mobile stations |
| DE10119277A1 (de) * | 2001-04-20 | 2002-10-24 | Alcatel Sa | Verfahren zur Maskierung von Geräuschmodulationen und Störgeräuschen bei der Sprachübertragung |
| GB2375688B (en) * | 2001-05-14 | 2004-09-29 | Motorola Ltd | Telephone apparatus and a communication method using such apparatus |
| US6961422B2 (en) * | 2001-12-28 | 2005-11-01 | Avaya Technology Corp. | Gain control method for acoustic echo cancellation and suppression |
| US7187656B2 (en) | 2002-05-02 | 2007-03-06 | General Instrument Corporation | Method and system for processing tones to reduce false detection of fax and modem communications |
| 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 |
| WO2004064365A1 (en) * | 2003-01-08 | 2004-07-29 | Philips Intellectual Property & Standards Gmbh | Device and method for suppressing echo, in particular in telephones |
| US7065207B2 (en) * | 2003-09-11 | 2006-06-20 | Freescale Semiconductor, Inc. | Controlling attenuation during echo suppression |
| US7046794B2 (en) * | 2003-12-12 | 2006-05-16 | Motorola, Inc. | Double talk activity detector and method for an echo canceler circuit |
| US7099458B2 (en) * | 2003-12-12 | 2006-08-29 | Motorola, Inc. | Downlink activity and double talk probability detector and method for an echo canceler circuit |
| US7856097B2 (en) * | 2004-06-17 | 2010-12-21 | Panasonic Corporation | Echo canceling apparatus, telephone set using the same, and echo canceling method |
| 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 |
| 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 |
| US8050398B1 (en) | 2007-10-31 | 2011-11-01 | Clearone Communications, Inc. | Adaptive conferencing pod sidetone compensator connecting to a telephonic device having intermittent sidetone |
| 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 |
| 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 |
| KR101472702B1 (ko) * | 2011-02-21 | 2014-12-12 | 엠파이어 테크놀로지 디벨롭먼트 엘엘씨 | 무선 통신의 향상을 위한 대역 외 정보의 이용 |
| 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 |
| CN112237008B (zh) * | 2018-06-11 | 2022-06-03 | 索尼公司 | 信号处理装置、信号处理方法和计算机可读存储介质 |
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5022074A (en) * | 1985-07-01 | 1991-06-04 | Rockwell International Corporation | Digital echo suppressor |
| US5619566A (en) * | 1993-08-27 | 1997-04-08 | Motorola, Inc. | Voice activity detector for an echo suppressor and an echo suppressor |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0106640B1 (en) * | 1982-10-15 | 1986-07-16 | British Telecommunications | Noise control circuit |
| US5157653A (en) * | 1990-08-03 | 1992-10-20 | Coherent Communications Systems Corp. | Residual echo elimination with proportionate noise injection |
| 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 |
-
1998
- 1998-01-09 US US09/005,144 patent/US6148078A/en not_active Expired - Lifetime
- 1998-12-22 BR BRPI9813791-3A patent/BR9813791B1/pt not_active IP Right Cessation
- 1998-12-22 JP JP2000528068A patent/JP2002501336A/ja active Pending
- 1998-12-22 EP EP98963835A patent/EP1044558B1/en not_active Expired - Lifetime
- 1998-12-22 CN CNB988138581A patent/CN100502443C/zh not_active Expired - Lifetime
- 1998-12-22 DE DE69820118T patent/DE69820118D1/de not_active Expired - Lifetime
- 1998-12-22 AU AU19077/99A patent/AU756390B2/en not_active Expired
- 1998-12-22 TR TR2001/00647T patent/TR200100647T2/xx unknown
- 1998-12-22 EE EEP200000415A patent/EE200000415A/xx unknown
- 1998-12-22 TR TR2000/01904T patent/TR200001904T2/xx unknown
- 1998-12-22 KR KR10-2000-7007535A patent/KR100519001B1/ko not_active Expired - Fee Related
- 1998-12-22 IL IL13718298A patent/IL137182A/en not_active IP Right Cessation
- 1998-12-22 WO PCT/US1998/026231 patent/WO1999035812A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5022074A (en) * | 1985-07-01 | 1991-06-04 | Rockwell International Corporation | Digital echo suppressor |
| US5619566A (en) * | 1993-08-27 | 1997-04-08 | Motorola, Inc. | Voice activity detector for an echo suppressor and an echo suppressor |
Also Published As
| Publication number | Publication date |
|---|---|
| TR200100647T2 (tr) | 2002-06-21 |
| BR9813791B1 (pt) | 2013-04-16 |
| EP1044558B1 (en) | 2003-11-26 |
| WO1999035812A1 (en) | 1999-07-15 |
| IL137182A0 (en) | 2001-07-24 |
| KR20010033951A (ko) | 2001-04-25 |
| DE69820118D1 (de) | 2004-01-08 |
| EE200000415A (et) | 2001-12-17 |
| HK1037077A1 (zh) | 2002-01-25 |
| AU1907799A (en) | 1999-07-26 |
| IL137182A (en) | 2004-09-27 |
| JP2002501336A (ja) | 2002-01-15 |
| TR200001904T2 (tr) | 2000-11-21 |
| KR100519001B1 (ko) | 2005-10-06 |
| EP1044558A1 (en) | 2000-10-18 |
| BR9813791A (pt) | 2000-10-03 |
| CN100502443C (zh) | 2009-06-17 |
| US6148078A (en) | 2000-11-14 |
| CN1294814A (zh) | 2001-05-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |