CN1164036C - 声音回波和噪声的消除 - Google Patents
声音回波和噪声的消除 Download PDFInfo
- Publication number
- CN1164036C CN1164036C CNB008017832A CN00801783A CN1164036C CN 1164036 C CN1164036 C CN 1164036C CN B008017832 A CNB008017832 A CN B008017832A CN 00801783 A CN00801783 A CN 00801783A CN 1164036 C CN1164036 C CN 1164036C
- Authority
- CN
- China
- Prior art keywords
- centerdot
- overbar
- filter
- input signal
- sef
- 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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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
- H03H21/0012—Digital adaptive filters
- H03H21/0025—Particular filtering methods
- H03H21/0027—Particular filtering methods filtering in the frequency domain
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0211—Frequency selective networks using specific transformation algorithms, e.g. WALSH functions, Fermat transforms, Mersenne transforms, polynomial transforms, Hilbert transforms
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0211—Frequency selective networks using specific transformation algorithms, e.g. WALSH functions, Fermat transforms, Mersenne transforms, polynomial transforms, Hilbert transforms
- H03H17/0213—Frequency domain filters using Fourier transforms
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Filters That Use Time-Delay Elements (AREA)
Abstract
Description
Claims (15)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99202026 | 1999-06-24 | ||
EP99202026.3 | 1999-06-24 | ||
EP00201142 | 2000-03-30 | ||
EP00201142.7 | 2000-03-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1321358A CN1321358A (zh) | 2001-11-07 |
CN1164036C true CN1164036C (zh) | 2004-08-25 |
Family
ID=26072060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB008017832A Expired - Lifetime CN1164036C (zh) | 1999-06-24 | 2000-06-21 | 声音回波和噪声的消除 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7058185B1 (zh) |
EP (1) | EP1110315B1 (zh) |
JP (1) | JP4700871B2 (zh) |
KR (1) | KR100723283B1 (zh) |
CN (1) | CN1164036C (zh) |
DE (1) | DE60038432T2 (zh) |
WO (1) | WO2001001571A1 (zh) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4221222B2 (ja) * | 2001-01-23 | 2009-02-12 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 非対称マルチチャンネルフィルタ |
KR20030070177A (ko) * | 2002-02-21 | 2003-08-29 | 엘지전자 주식회사 | 원시 디지털 데이터의 잡음 필터링 방법 |
KR100473609B1 (ko) * | 2002-12-13 | 2005-03-10 | 한국전자통신연구원 | 상호작용 적응형 필터 및 필터링 방법 |
KR100556365B1 (ko) * | 2003-07-07 | 2006-03-03 | 엘지전자 주식회사 | 음성 인식장치 및 방법 |
US9509854B2 (en) * | 2004-10-13 | 2016-11-29 | Koninklijke Philips N.V. | Echo cancellation |
US20070116300A1 (en) * | 2004-12-22 | 2007-05-24 | Broadcom Corporation | Channel decoding for wireless telephones with multiple microphones and multiple description transmission |
US8509703B2 (en) * | 2004-12-22 | 2013-08-13 | Broadcom Corporation | Wireless telephone with multiple microphones and multiple description transmission |
US20060133621A1 (en) * | 2004-12-22 | 2006-06-22 | Broadcom Corporation | Wireless telephone having multiple microphones |
US7983720B2 (en) * | 2004-12-22 | 2011-07-19 | Broadcom Corporation | Wireless telephone with adaptive microphone array |
US20060147063A1 (en) * | 2004-12-22 | 2006-07-06 | Broadcom Corporation | Echo cancellation in telephones with multiple microphones |
EP1855457B1 (en) * | 2006-05-10 | 2009-07-08 | Harman Becker Automotive Systems GmbH | Multi channel echo compensation using a decorrelation stage |
DE102006028502C5 (de) * | 2006-06-21 | 2017-01-05 | Nokia Solutions And Networks Gmbh & Co. Kg | Vorrichtung und Verfahren zur Unterstützung von IP-Telephonie in einer Unterhaltungselektronik-Umgebung |
US7764798B1 (en) | 2006-07-21 | 2010-07-27 | Cingular Wireless Ii, Llc | Radio frequency interference reduction in connection with mobile phones |
JP2010509829A (ja) * | 2006-11-10 | 2010-03-25 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 信号処理システム及び信号処理方法 |
US20080118081A1 (en) * | 2006-11-17 | 2008-05-22 | William Michael Chang | Method and Apparatus for Canceling a User's Voice |
TWI348311B (en) | 2007-10-09 | 2011-09-01 | Quanta Comp Inc | Portable computer system and operating method thereof |
US8428661B2 (en) * | 2007-10-30 | 2013-04-23 | Broadcom Corporation | Speech intelligibility in telephones with multiple microphones |
US8170229B2 (en) * | 2007-11-06 | 2012-05-01 | James Carl Kesterson | Audio privacy apparatus and method |
DE102008011285A1 (de) * | 2007-12-21 | 2009-06-25 | Airbus Deutschland Gmbh | Aktiver Schallblocker |
US8605890B2 (en) | 2008-09-22 | 2013-12-10 | Microsoft Corporation | Multichannel acoustic echo cancellation |
CN102265643B (zh) * | 2008-12-23 | 2014-11-19 | 皇家飞利浦电子股份有限公司 | 语音再现设备、方法及*** |
US9143862B2 (en) | 2012-12-17 | 2015-09-22 | Microsoft Corporation | Correlation based filter adaptation |
JP6398470B2 (ja) * | 2014-08-27 | 2018-10-03 | 沖電気工業株式会社 | ステレオエコー抑圧装置、エコー抑圧装置、ステレオエコー抑圧方法及びステレオエコー抑圧プログラム |
CN105280195B (zh) | 2015-11-04 | 2018-12-28 | 腾讯科技(深圳)有限公司 | 语音信号的处理方法及装置 |
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 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4355368A (en) * | 1980-10-06 | 1982-10-19 | The United States Of America As Represented By The Secretary Of The Navy | Adaptive correlator |
US4939685A (en) * | 1986-06-05 | 1990-07-03 | Hughes Aircraft Company | Normalized frequency domain LMS adaptive filter |
NL8701633A (nl) | 1987-07-10 | 1989-02-01 | Philips Nv | Digitale echocompensator. |
US5828756A (en) | 1994-11-22 | 1998-10-27 | Lucent Technologies Inc. | Stereophonic acoustic echo cancellation using non-linear transformations |
JPH09261135A (ja) * | 1996-03-25 | 1997-10-03 | Pioneer Electron Corp | 音響エコー消去装置 |
JP4104659B2 (ja) | 1996-05-31 | 2008-06-18 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 入力信号の妨害成分を抑圧するための装置 |
JP3654470B2 (ja) * | 1996-09-13 | 2005-06-02 | 日本電信電話株式会社 | サブバンド多チャネル音声通信会議用反響消去方法 |
-
2000
- 2000-06-21 JP JP2001506135A patent/JP4700871B2/ja not_active Expired - Lifetime
- 2000-06-21 KR KR1020017002364A patent/KR100723283B1/ko active IP Right Grant
- 2000-06-21 WO PCT/EP2000/005711 patent/WO2001001571A1/en active IP Right Grant
- 2000-06-21 US US09/598,732 patent/US7058185B1/en not_active Expired - Lifetime
- 2000-06-21 CN CNB008017832A patent/CN1164036C/zh not_active Expired - Lifetime
- 2000-06-21 DE DE60038432T patent/DE60038432T2/de not_active Expired - Lifetime
- 2000-06-21 EP EP00936903A patent/EP1110315B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP4700871B2 (ja) | 2011-06-15 |
DE60038432T2 (de) | 2009-04-23 |
WO2001001571A1 (en) | 2001-01-04 |
EP1110315A1 (en) | 2001-06-27 |
CN1321358A (zh) | 2001-11-07 |
JP2003503871A (ja) | 2003-01-28 |
EP1110315B1 (en) | 2008-03-26 |
US7058185B1 (en) | 2006-06-06 |
KR20010072937A (ko) | 2001-07-31 |
DE60038432D1 (de) | 2008-05-08 |
KR100723283B1 (ko) | 2007-05-30 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address |
Address after: No. 5, 5656 Hi-tech Park, Einhofen, Netherlands Patentee after: KONINKLIJKE PHILIPS N.V. Address before: Holland Ian Deho Finn Patentee before: KONINKLIJKE PHILIPS ELECTRONICS N.V. |
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CP03 | Change of name, title or address | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190507 Address after: China Taiwan Hsinchu Science Park Hsinchu city Dusing a road No. Patentee after: MEDIATEK Inc. Address before: No. 5, 5656 Hi-tech Park, Einhofen, Netherlands Patentee before: KONINKLIJKE PHILIPS N.V. |
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TR01 | Transfer of patent right | ||
CX01 | Expiry of patent term |
Granted publication date: 20040825 |
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CX01 | Expiry of patent term |