DE69637266D1 - System und verfahren zum vermeiden falscher konvergenz in gegenwart von tönen in einem in der zeitdomäne arbeitendem echokompensationsprozess - Google Patents

System und verfahren zum vermeiden falscher konvergenz in gegenwart von tönen in einem in der zeitdomäne arbeitendem echokompensationsprozess

Info

Publication number
DE69637266D1
DE69637266D1 DE69637266T DE69637266T DE69637266D1 DE 69637266 D1 DE69637266 D1 DE 69637266D1 DE 69637266 T DE69637266 T DE 69637266T DE 69637266 T DE69637266 T DE 69637266T DE 69637266 D1 DE69637266 D1 DE 69637266D1
Authority
DE
Germany
Prior art keywords
tones
echo
signal
time domain
convergence
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
Application number
DE69637266T
Other languages
English (en)
Other versions
DE69637266T2 (de
Inventor
Gilbert C Sih
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.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of DE69637266D1 publication Critical patent/DE69637266D1/de
Application granted granted Critical
Publication of DE69637266T2 publication Critical patent/DE69637266T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
DE69637266T 1995-05-31 1996-05-31 System und verfahren zum vermeiden falscher konvergenz in gegenwart von tönen in einem in der zeitdomäne arbeitendem echokompensationsprozess Expired - Lifetime DE69637266T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/455,801 US5592548A (en) 1995-05-31 1995-05-31 System and method for avoiding false convergence in the presence of tones in a time-domain echo cancellation process
US455801 1995-05-31
PCT/US1996/008110 WO1996038933A1 (en) 1995-05-31 1996-05-31 System and method for avoiding false convergence in the presence of tones in a time-domain echo cancellation process

Publications (2)

Publication Number Publication Date
DE69637266D1 true DE69637266D1 (de) 2007-11-08
DE69637266T2 DE69637266T2 (de) 2008-06-26

Family

ID=23810325

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69637266T Expired - Lifetime DE69637266T2 (de) 1995-05-31 1996-05-31 System und verfahren zum vermeiden falscher konvergenz in gegenwart von tönen in einem in der zeitdomäne arbeitendem echokompensationsprozess

Country Status (14)

Country Link
US (1) US5592548A (de)
EP (1) EP0829147B1 (de)
JP (3) JP3652705B2 (de)
KR (1) KR100411639B1 (de)
CN (1) CN1116744C (de)
AT (1) ATE374462T1 (de)
AU (1) AU5957396A (de)
BR (1) BR9608744A (de)
DE (1) DE69637266T2 (de)
DK (1) DK0829147T3 (de)
ES (1) ES2293647T3 (de)
HK (1) HK1010958A1 (de)
RU (1) RU2150174C1 (de)
WO (1) WO1996038933A1 (de)

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JP4752494B2 (ja) * 2005-12-22 2011-08-17 沖電気工業株式会社 エコーキャンセラ
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
JP2008113371A (ja) * 2006-10-31 2008-05-15 Oki Electric Ind Co Ltd エコーキャンセラ及びエコーキャンセル方法
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US8542802B2 (en) 2007-02-15 2013-09-24 Global Tel*Link Corporation System and method for three-way call detection
US8121260B2 (en) * 2007-03-22 2012-02-21 Audiocodes Ltd. Method and apparatus for retraining of echo cancellation
JP2008294576A (ja) * 2007-05-22 2008-12-04 Panasonic Electric Works Co Ltd インターホン装置
US9124769B2 (en) * 2008-10-31 2015-09-01 The Nielsen Company (Us), Llc Methods and apparatus to verify presentation of media content
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CN102118530B (zh) * 2010-01-06 2013-08-14 杭州华三通信技术有限公司 一种回声消除的方法和装置
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JP6279172B2 (ja) * 2015-11-16 2018-02-14 三菱電機株式会社 エコーキャンセラ装置及び通話装置
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US9609121B1 (en) 2016-04-07 2017-03-28 Global Tel*Link Corporation System and method for third party monitoring of voice and video calls
US10420870B2 (en) * 2016-08-01 2019-09-24 Heartware, Inc. Heart rate determination based on VAD current waveform
US10027797B1 (en) 2017-05-10 2018-07-17 Global Tel*Link Corporation Alarm control for inmate call monitoring
US10225396B2 (en) 2017-05-18 2019-03-05 Global Tel*Link Corporation Third party monitoring of a activity within a monitoring platform
US10860786B2 (en) 2017-06-01 2020-12-08 Global Tel*Link Corporation System and method for analyzing and investigating communication data from a controlled environment
US9930088B1 (en) 2017-06-22 2018-03-27 Global Tel*Link Corporation Utilizing VoIP codec negotiation during a controlled environment call
EP4078577A1 (de) 2019-12-18 2022-10-26 Dolby Laboratories Licensing Corp. Filteranpassungsschrittgrössensteuerung für echounterdrückung

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Also Published As

Publication number Publication date
AU5957396A (en) 1996-12-18
BR9608744A (pt) 1999-05-04
US5592548A (en) 1997-01-07
WO1996038933A1 (en) 1996-12-05
HK1010958A1 (en) 1999-07-02
JP3652705B2 (ja) 2005-05-25
DK0829147T3 (da) 2008-01-02
EP0829147A1 (de) 1998-03-18
ES2293647T3 (es) 2008-03-16
JP2002335195A (ja) 2002-11-22
RU2150174C1 (ru) 2000-05-27
JP3936228B2 (ja) 2007-06-27
EP0829147B1 (de) 2007-09-26
JP2005110307A (ja) 2005-04-21
JPH11506284A (ja) 1999-06-02
KR100411639B1 (ko) 2004-04-28
DE69637266T2 (de) 2008-06-26
JP4485925B2 (ja) 2010-06-23
ATE374462T1 (de) 2007-10-15
CN1116744C (zh) 2003-07-30
CN1185874A (zh) 1998-06-24
KR19990022149A (ko) 1999-03-25

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