HK1054136A1 - Digital echo canceller - Google Patents

Digital echo canceller

Info

Publication number
HK1054136A1
HK1054136A1 HK03106296A HK03106296A HK1054136A1 HK 1054136 A1 HK1054136 A1 HK 1054136A1 HK 03106296 A HK03106296 A HK 03106296A HK 03106296 A HK03106296 A HK 03106296A HK 1054136 A1 HK1054136 A1 HK 1054136A1
Authority
HK
Hong Kong
Prior art keywords
adaptive filter
channel
echo canceller
adaptation mode
digital echo
Prior art date
Application number
HK03106296A
Other languages
English (en)
Inventor
Neil Bershad
Anurag Bist
Stan Hsieh
Original Assignee
Intel Corp
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 Intel Corp filed Critical Intel Corp
Publication of HK1054136A1 publication Critical patent/HK1054136A1/xx

Links

Classifications

    • 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
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
HK03106296A 2000-09-08 2003-09-03 Digital echo canceller HK1054136A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US23142000P 2000-09-08 2000-09-08
US09/947,804 US6700978B2 (en) 2000-09-08 2001-09-06 Method and apparatus for fast converging affine projection based echo canceller
PCT/US2001/042088 WO2002021717A2 (en) 2000-09-08 2001-09-07 Digital echo cancellor

Publications (1)

Publication Number Publication Date
HK1054136A1 true HK1054136A1 (en) 2003-11-14

Family

ID=26925112

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03106296A HK1054136A1 (en) 2000-09-08 2003-09-03 Digital echo canceller

Country Status (9)

Country Link
US (1) US6700978B2 (xx)
EP (1) EP1320941B1 (xx)
CN (1) CN1473403B (xx)
AT (1) ATE332040T1 (xx)
AU (1) AU2001293264A1 (xx)
CA (1) CA2421759C (xx)
DE (1) DE60121186D1 (xx)
HK (1) HK1054136A1 (xx)
WO (1) WO2002021717A2 (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6792106B1 (en) * 1999-09-17 2004-09-14 Agere Systems Inc. Echo canceller and method of echo cancellation using an NLMS algorithm
DE10012868C1 (de) * 2000-03-16 2001-07-26 Siemens Ag Rechnergerät mit Mehrwege-Akustikaus- und -eingabesystem
US7627111B2 (en) * 2002-11-25 2009-12-01 Intel Corporation Noise matching for echo cancellers
CN100394579C (zh) * 2005-03-03 2008-06-11 中国科学院微电子研究所 超大规模集成电路设计中保持时间快速收敛的方法
CN1859519B (zh) * 2005-11-19 2010-09-29 华为技术有限公司 一种自适应滤波器及回波抵消器
JP4432916B2 (ja) * 2006-03-03 2010-03-17 ソニー株式会社 音声処理装置
EP2092659B1 (de) 2006-11-15 2013-04-10 Siemens Enterprise Communications GmbH & Co. KG Verfahren und anordnung zum adaptiven filtern von signalen
US8254561B1 (en) * 2007-04-17 2012-08-28 Plantronics, Inc. Headset adapter with host phone detection and characterization
KR101975251B1 (ko) 2012-07-09 2019-05-07 삼성전자주식회사 오디오 신호 처리 시스템 및 이의 에코 신호 제거 방법
CN103152137A (zh) * 2013-01-17 2013-06-12 杭州电子科技大学 上行多用户多输入多输出系统中的仿射投影解码法
CN103107838A (zh) * 2013-01-17 2013-05-15 杭州电子科技大学 用于上行多用户mimo系统中基于用户选择的仿射投影解码法
CN104144269B (zh) * 2014-08-08 2016-03-02 西南交通大学 一种基于解相关的成比例自适应电话回声消除方法
CN104392727A (zh) * 2014-11-12 2015-03-04 华为技术有限公司 音频信号处理方法和相关装置
CN109089004B (zh) * 2018-08-14 2020-10-09 西南交通大学 一种基于相关熵诱导的集员自适应回声消除方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04123621A (ja) 1990-09-14 1992-04-23 Nippon Telegr & Teleph Corp <Ntt> 反響消去装置
FI935834A (fi) * 1993-12-23 1995-06-24 Nokia Telecommunications Oy Menetelmä kaikukohtaan sovittautumiseksi kaiunpoistajassa
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
US6137881A (en) * 1997-02-28 2000-10-24 Texas Instruments Incorporated Adaptive filtering method and apparatus employing modified fast affine projection algorithm
JP3236242B2 (ja) 1997-05-12 2001-12-10 沖電気工業株式会社 エコーキャンセラ装置

Also Published As

Publication number Publication date
CA2421759C (en) 2008-09-02
CA2421759A1 (en) 2002-03-14
AU2001293264A1 (en) 2002-03-22
WO2002021717A2 (en) 2002-03-14
CN1473403A (zh) 2004-02-04
ATE332040T1 (de) 2006-07-15
WO2002021717A3 (en) 2003-02-27
US20020071547A1 (en) 2002-06-13
EP1320941B1 (en) 2006-06-28
US6700978B2 (en) 2004-03-02
DE60121186D1 (de) 2006-08-10
EP1320941A2 (en) 2003-06-25
CN1473403B (zh) 2010-05-05

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20100907