ATE426274T1 - Echolíscher mit durch stírungspegel gesteuerter schrittgrísse - Google Patents

Echolíscher mit durch stírungspegel gesteuerter schrittgrísse

Info

Publication number
ATE426274T1
ATE426274T1 AT05702731T AT05702731T ATE426274T1 AT E426274 T1 ATE426274 T1 AT E426274T1 AT 05702731 T AT05702731 T AT 05702731T AT 05702731 T AT05702731 T AT 05702731T AT E426274 T1 ATE426274 T1 AT E426274T1
Authority
AT
Austria
Prior art keywords
signal
echo
echolic
measure
generating
Prior art date
Application number
AT05702731T
Other languages
English (en)
Inventor
Wolfgang Brox
Original Assignee
Nxp Bv
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 Nxp Bv filed Critical Nxp Bv
Application granted granted Critical
Publication of ATE426274T1 publication Critical patent/ATE426274T1/de

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
    • 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
    • H04B3/234—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 using double talk detection
    • 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
    • H04M9/085—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 digital techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Telephonic Communication Services (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Noise Elimination (AREA)
AT05702731T 2004-01-29 2005-01-20 Echolíscher mit durch stírungspegel gesteuerter schrittgrísse ATE426274T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04100326 2004-01-29

Publications (1)

Publication Number Publication Date
ATE426274T1 true ATE426274T1 (de) 2009-04-15

Family

ID=34814376

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05702731T ATE426274T1 (de) 2004-01-29 2005-01-20 Echolíscher mit durch stírungspegel gesteuerter schrittgrísse

Country Status (8)

Country Link
US (1) US7813497B2 (de)
EP (1) EP1714398B8 (de)
JP (1) JP4836032B2 (de)
KR (1) KR101045712B1 (de)
CN (1) CN1914819B (de)
AT (1) ATE426274T1 (de)
DE (1) DE602005013362D1 (de)
WO (1) WO2005074156A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111469260A (zh) * 2020-04-28 2020-07-31 王安全 一种干法生产制备的石膏砌块

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005074156A1 (en) 2004-01-29 2005-08-11 Koninklijke Philips Electronics N.V. Echo canceller with interference-level controlled step size
JP4438720B2 (ja) 2005-08-17 2010-03-24 ソニー株式会社 エコーキャンセラ及びマイク装置
KR20080058870A (ko) * 2006-12-22 2008-06-26 에스케이텔레시스 주식회사 Ｉｃｓ중계기의 간섭제거장치
US8369511B2 (en) * 2006-12-26 2013-02-05 Huawei Technologies Co., Ltd. Robust method of echo suppressor
CN101227537B (zh) * 2007-01-19 2010-12-01 中兴通讯股份有限公司 一种宽带声学回声消除方法
EP1950739B1 (de) * 2007-01-23 2011-09-14 Siemens Aktiengesellschaft Österreich Verfahren zur Identifikation von Signalen gleichen Ursprungs
KR100862715B1 (ko) * 2007-06-22 2008-10-10 에스케이텔레시스 주식회사 디지털 적응 간섭제거 중계기
KR100830695B1 (ko) * 2007-06-22 2008-05-20 에스케이텔레시스 주식회사 디지털 적응 간섭제거 중계기
US8331552B2 (en) * 2008-05-09 2012-12-11 Agere Systems Llc Detection of double talk in telecommunications networks
US8208649B2 (en) * 2009-04-28 2012-06-26 Hewlett-Packard Development Company, L.P. Methods and systems for robust approximations of impulse responses in multichannel audio-communication systems
US20110102540A1 (en) * 2009-11-03 2011-05-05 Ashish Goyal Filtering Auxiliary Audio from Vocal Audio in a Conference
EP2768244A4 (de) * 2011-10-14 2015-03-25 Panasonic Corp Vorrichtung zur rückkopplungsunterdrückung, hörgerät, verfahren zur rückkopplungsunterdrückung und integrierter schaltkreis
WO2013054459A1 (ja) * 2011-10-14 2013-04-18 パナソニック株式会社 ハウリング抑圧装置、補聴器、ハウリング抑圧方法、及び集積回路
US8896651B2 (en) * 2011-10-27 2014-11-25 Polycom, Inc. Portable devices as videoconferencing peripherals
DK2590437T3 (da) * 2011-11-03 2016-01-11 Sivantos Pte Ltd Periodisk adaptering af en tilbagekoblingsundertrykningsindretning
CN103391381B (zh) * 2012-05-10 2015-05-20 中兴通讯股份有限公司 回声消除方法及装置
US9473646B1 (en) * 2013-09-16 2016-10-18 Amazon Technologies, Inc. Robust acoustic echo cancellation
US9344579B2 (en) * 2014-07-02 2016-05-17 Microsoft Technology Licensing, Llc Variable step size echo cancellation with accounting for instantaneous interference
CN106782593B (zh) * 2017-02-27 2019-10-25 重庆邮电大学 一种用于声学回声消除的多带结构自适应滤波器切换方法
US10819857B1 (en) * 2019-01-22 2020-10-27 Polycom, Inc. Minimizing echo due to speaker-to-microphone coupling changes in an acoustic echo canceler
CN113704684B (zh) * 2021-07-27 2023-08-29 浙江工商大学 一种集中式融合鲁棒滤波方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535206A (en) * 1980-04-09 1985-08-13 At&T Bell Laboratories Echo cancellation in two-wire full-duplex data transmission with estimation of far-end data components
CA1175521A (en) * 1980-04-09 1984-10-02 David D. Falconer Echo cancellation in two-wire full-duplex data transmission with estimation of far-end data components
JPH0481133A (ja) * 1990-07-20 1992-03-13 Fujitsu Ltd エコーキャンセラー
FI935834A7 (fi) * 1993-12-23 1995-06-24 Nokia Corp Menetelmä kaikukohtaan sovittautumiseksi kaiunpoistajassa
US5606550A (en) * 1995-05-22 1997-02-25 Hughes Electronics Echo canceller and method for a voice network using low rate coding and digital speech interpolation transmission
FR2748184B1 (fr) * 1996-04-26 1998-07-17 France Telecom Procede et dispositif d'annulation d'echo
US5734715A (en) 1995-09-13 1998-03-31 France Telecom Process and device for adaptive identification and adaptive echo canceller relating thereto
FR2738695B1 (fr) * 1995-09-13 1997-11-14 France Telecom Procede et dispositif d'identification adaptative et annuleur d'echo adaptatif incluant un tel dispositif
JPH09266456A (ja) * 1996-03-28 1997-10-07 Mitsubishi Electric Corp エコーキャンセラ
US7242762B2 (en) * 2002-06-24 2007-07-10 Freescale Semiconductor, Inc. Monitoring and control of an adaptive filter in a communication system
WO2005074156A1 (en) 2004-01-29 2005-08-11 Koninklijke Philips Electronics N.V. Echo canceller with interference-level controlled step size

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111469260A (zh) * 2020-04-28 2020-07-31 王安全 一种干法生产制备的石膏砌块

Also Published As

Publication number Publication date
EP1714398A1 (de) 2006-10-25
DE602005013362D1 (de) 2009-04-30
CN1914819A (zh) 2007-02-14
US20090022074A1 (en) 2009-01-22
US7813497B2 (en) 2010-10-12
CN1914819B (zh) 2010-08-11
WO2005074156A1 (en) 2005-08-11
KR101045712B1 (ko) 2011-06-30
EP1714398B8 (de) 2009-08-12
EP1714398B1 (de) 2009-03-18
JP2007522720A (ja) 2007-08-09
JP4836032B2 (ja) 2011-12-14
KR20060128990A (ko) 2006-12-14

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