ATE377904T1 - Nichtlinearer akustischer echokompensator - Google Patents
Nichtlinearer akustischer echokompensatorInfo
- Publication number
- ATE377904T1 ATE377904T1 AT03768051T AT03768051T ATE377904T1 AT E377904 T1 ATE377904 T1 AT E377904T1 AT 03768051 T AT03768051 T AT 03768051T AT 03768051 T AT03768051 T AT 03768051T AT E377904 T1 ATE377904 T1 AT E377904T1
- Authority
- AT
- Austria
- Prior art keywords
- echo
- converter
- input
- signal
- filter
- Prior art date
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03100017 | 2003-01-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE377904T1 true ATE377904T1 (de) | 2007-11-15 |
Family
ID=32695622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT03768051T ATE377904T1 (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)
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)
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 |
-
2003
- 2003-12-22 CN CN200380108431A patent/CN100576866C/zh not_active Expired - Fee Related
- 2003-12-22 EP EP03768051A patent/EP1584177B1/de not_active Expired - Lifetime
- 2003-12-22 JP JP2004566211A patent/JP4541159B2/ja not_active Expired - Fee Related
- 2003-12-22 WO PCT/IB2003/006287 patent/WO2004064366A1/en active IP Right Grant
- 2003-12-22 US US10/541,417 patent/US7260213B2/en not_active Expired - Fee Related
- 2003-12-22 AT AT03768051T patent/ATE377904T1/de not_active IP Right Cessation
- 2003-12-22 AU AU2003292470A patent/AU2003292470A1/en not_active Abandoned
- 2003-12-22 DE DE60317368T patent/DE60317368T2/de not_active Expired - Lifetime
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 |
DE60317368D1 (de) | 2007-12-20 |
JP2006513627A (ja) | 2006-04-20 |
EP1584177B1 (de) | 2007-11-07 |
DE60317368T2 (de) | 2008-08-28 |
CN100576866C (zh) | 2009-12-30 |
US7260213B2 (en) | 2007-08-21 |
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Legal Events
Date | Code | Title | Description |
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RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |