DE69939263D1 - Digitale signalverarbeitung mit frequenzfilterung und mit verminderung der rechenkomplexität - Google Patents

Digitale signalverarbeitung mit frequenzfilterung und mit verminderung der rechenkomplexität

Info

Publication number
DE69939263D1
DE69939263D1 DE69939263T DE69939263T DE69939263D1 DE 69939263 D1 DE69939263 D1 DE 69939263D1 DE 69939263 T DE69939263 T DE 69939263T DE 69939263 T DE69939263 T DE 69939263T DE 69939263 D1 DE69939263 D1 DE 69939263D1
Authority
DE
Germany
Prior art keywords
complexity
reduction
signal processing
digital signal
frequency filtering
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
DE69939263T
Other languages
English (en)
Inventor
Andre Gilloire
Wolfgang Tager
Valerie Turbin
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.)
Orange SA
Original Assignee
France Telecom SA
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 France Telecom SA filed Critical France Telecom SA
Application granted granted Critical
Publication of DE69939263D1 publication Critical patent/DE69939263D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
  • Filters That Use Time-Delay Elements (AREA)
  • Complex Calculations (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
DE69939263T 1998-08-06 1999-08-05 Digitale signalverarbeitung mit frequenzfilterung und mit verminderung der rechenkomplexität Expired - Lifetime DE69939263D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9810124A FR2782180B1 (fr) 1998-08-06 1998-08-06 Dispositif de traitement numerique a filtrage frequentiel et a complexite de calcul reduite
PCT/FR1999/001941 WO2000008836A1 (fr) 1998-08-06 1999-08-05 Dispositif de traitement numerique a filtrage frequentiel et a complexite de calcul reduite

Publications (1)

Publication Number Publication Date
DE69939263D1 true DE69939263D1 (de) 2008-09-18

Family

ID=9529469

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69939263T Expired - Lifetime DE69939263D1 (de) 1998-08-06 1999-08-05 Digitale signalverarbeitung mit frequenzfilterung und mit verminderung der rechenkomplexität

Country Status (7)

Country Link
US (1) US6968352B1 (de)
EP (1) EP1103138B1 (de)
JP (1) JP4549535B2 (de)
DE (1) DE69939263D1 (de)
ES (1) ES2312212T3 (de)
FR (1) FR2782180B1 (de)
WO (1) WO2000008836A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI233030B (en) * 2002-04-11 2005-05-21 Via Tech Inc Digital audio signal processing method with improved processing efficiency
US7251322B2 (en) * 2003-10-24 2007-07-31 Microsoft Corporation Systems and methods for echo cancellation with arbitrary playback sampling rates
JP4199144B2 (ja) * 2004-03-11 2008-12-17 株式会社東芝 ウェイト関数生成装置、参照信号生成装置、送信信号生成装置、信号処理装置及びアンテナ装置
US20120013565A1 (en) * 2010-07-16 2012-01-19 Perceptive Pixel Inc. Techniques for Locally Improving Signal to Noise in a Capacitive Touch Sensor
US8499021B2 (en) * 2010-08-25 2013-07-30 Qualcomm Incorporated Circuit and method for computing circular convolution in streaming mode
EP2730026B1 (de) * 2011-05-05 2020-09-30 Cerence Operating Company Filterung mit geringer verzögerung
CN107610713B (zh) * 2017-10-23 2022-02-01 科大讯飞股份有限公司 基于时延估计的回声消除方法及装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8601604A (nl) 1986-06-20 1988-01-18 Philips Nv Frequentie-domein blok-adaptief digitaal filter.
NL9001016A (nl) * 1990-04-27 1991-11-18 Philips Nv Digitale echocompensator met een dubbelspraakdetector.
FR2702612B1 (fr) * 1993-03-10 1995-06-09 France Telecom Procede et dispositif de filtrage d'un signal temporel numerique, et application a la correction d'echos dans un canal de transmission .
US5526426A (en) 1994-11-08 1996-06-11 Signalworks System and method for an efficiently constrained frequency-domain adaptive filter

Also Published As

Publication number Publication date
WO2000008836A1 (fr) 2000-02-17
ES2312212T3 (es) 2009-02-16
FR2782180B1 (fr) 2001-09-07
EP1103138B1 (de) 2008-08-06
JP4549535B2 (ja) 2010-09-22
FR2782180A1 (fr) 2000-02-11
JP2002522969A (ja) 2002-07-23
US6968352B1 (en) 2005-11-22
EP1103138A1 (de) 2001-05-30

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