NO314707B1 - Måling av konvergens ved adaptive filtre - Google Patents

Måling av konvergens ved adaptive filtre Download PDF

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Publication number
NO314707B1
NO314707B1 NO19982958A NO982958A NO314707B1 NO 314707 B1 NO314707 B1 NO 314707B1 NO 19982958 A NO19982958 A NO 19982958A NO 982958 A NO982958 A NO 982958A NO 314707 B1 NO314707 B1 NO 314707B1
Authority
NO
Norway
Prior art keywords
signal
adaptive
adaptive filtering
filtering device
stated
Prior art date
Application number
NO19982958A
Other languages
English (en)
Norwegian (no)
Other versions
NO982958L (no
NO982958D0 (no
Inventor
Jim Agne Jerker Rasmusson
Original Assignee
Ericsson 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 Ericsson Inc filed Critical Ericsson Inc
Publication of NO982958D0 publication Critical patent/NO982958D0/no
Publication of NO982958L publication Critical patent/NO982958L/no
Publication of NO314707B1 publication Critical patent/NO314707B1/no

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Physics & Mathematics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Telephone Function (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Dc Digital Transmission (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
NO19982958A 1995-12-27 1998-06-25 Måling av konvergens ved adaptive filtre NO314707B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/578,944 US5978473A (en) 1995-12-27 1995-12-27 Gauging convergence of adaptive filters
PCT/US1996/020155 WO1997024804A1 (en) 1995-12-27 1996-12-23 Gauging convergence of adaptive filters

Publications (3)

Publication Number Publication Date
NO982958D0 NO982958D0 (no) 1998-06-25
NO982958L NO982958L (no) 1998-08-25
NO314707B1 true NO314707B1 (no) 2003-05-05

Family

ID=24314972

Family Applications (1)

Application Number Title Priority Date Filing Date
NO19982958A NO314707B1 (no) 1995-12-27 1998-06-25 Måling av konvergens ved adaptive filtre

Country Status (14)

Country Link
US (1) US5978473A (zh)
EP (1) EP0870365B1 (zh)
JP (1) JP2000502861A (zh)
KR (1) KR100423472B1 (zh)
CN (1) CN1130827C (zh)
AR (1) AR015331A1 (zh)
AU (1) AU723628B2 (zh)
BR (1) BR9612356A (zh)
DE (1) DE69627530D1 (zh)
HK (1) HK1017521A1 (zh)
NO (1) NO314707B1 (zh)
RU (1) RU2180984C2 (zh)
TR (1) TR199801219T2 (zh)
WO (1) WO1997024804A1 (zh)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185300B1 (en) * 1996-12-31 2001-02-06 Ericsson Inc. Echo canceler for use in communications system
JP3139405B2 (ja) * 1997-02-28 2001-02-26 日本電気株式会社 エコーキャンセラ
US6622030B1 (en) 2000-06-29 2003-09-16 Ericsson Inc. Echo suppression using adaptive gain based on residual echo energy
JP4588191B2 (ja) * 2000-10-27 2010-11-24 パナソニック株式会社 エコーキャンセラ装置及びエコーキャンセル方法
DE10140523B4 (de) * 2001-08-17 2005-08-18 Dietmar Dr. Ruwisch Vorrichtung zum Feedback Cancelling bei der Ausgabe von Mikrofonsignalen durch Lautsprecher
US7215765B2 (en) 2002-06-24 2007-05-08 Freescale Semiconductor, Inc. Method and apparatus for pure delay estimation in a communication system
US7388954B2 (en) 2002-06-24 2008-06-17 Freescale Semiconductor, Inc. Method and apparatus for tone indication
US6961423B2 (en) * 2002-06-24 2005-11-01 Freescale Semiconductor, Inc. Method and apparatus for performing adaptive filtering
US7242762B2 (en) * 2002-06-24 2007-07-10 Freescale Semiconductor, Inc. Monitoring and control of an adaptive filter in a communication system
US6590833B1 (en) * 2002-08-08 2003-07-08 The United States Of America As Represented By The Secretary Of The Navy Adaptive cross correlator
DE10329055B4 (de) * 2003-06-27 2005-10-13 Infineon Technologies Ag Verfahren und Vorrichtung zur Echokompensation
EP2420050B1 (en) 2009-04-15 2013-04-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multichannel echo canceller
EP2438766B1 (en) * 2009-06-02 2015-05-06 Koninklijke Philips N.V. Acoustic multi-channel echo cancellation
WO2011104146A1 (en) 2010-02-24 2011-09-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus for generating an enhanced downmix signal, method for generating an enhanced downmix signal and computer program
US8687682B2 (en) 2012-01-30 2014-04-01 Lsi Corporation Transmitter adaptation loop using adjustable gain and convergence detection
US8848769B2 (en) 2012-10-09 2014-09-30 Lsi Corporation Joint transmitter and receiver gain optimization for high-speed serial data systems
US9025655B1 (en) 2013-10-17 2015-05-05 Lsi Corporation Transmitter training using receiver equalizer coefficients
US10181315B2 (en) * 2014-06-13 2019-01-15 Cirrus Logic, Inc. Systems and methods for selectively enabling and disabling adaptation of an adaptive noise cancellation system
EP3125429A1 (en) * 2015-07-28 2017-02-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Partitioned block frequency domain adaptive filter device comprising adaptation modules and correction modules
JP6878776B2 (ja) * 2016-05-30 2021-06-02 富士通株式会社 雑音抑圧装置、雑音抑圧方法及び雑音抑圧用コンピュータプログラム
KR102655724B1 (ko) 2023-10-12 2024-04-08 주식회사 원광에스앤티 태양광 폐모듈 습식 처리 공정 및 태양광 폐모듈 습식 처리 설비

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787645A (en) * 1971-05-19 1974-01-22 Nippon Electric Co Echo canceller having two echo path models
NL8701633A (nl) * 1987-07-10 1989-02-01 Philips Nv Digitale echocompensator.
US4922530A (en) * 1988-03-18 1990-05-01 Tellabs, Inc. Adaptive filter with coefficient averaging and method
JPH01243767A (ja) * 1988-03-25 1989-09-28 Toshiba Corp 会議通話方式
US4918727A (en) * 1988-06-09 1990-04-17 Tellabs Incorporated Double talk detector for echo canceller and method
CA1315356C (en) * 1988-07-20 1993-03-30 Seiji Miyoshi Digital adaptive filter and method of convergence therein
JP2518433B2 (ja) * 1990-01-24 1996-07-24 日本電気株式会社 ダブルト―ク検出回路
US5027369A (en) * 1990-03-26 1991-06-25 Motorola, Inc. Rapid convergence decision feedback equalizer
US5173924A (en) * 1990-05-21 1992-12-22 Sony Corporation Method for equalizing received burst signal
JP2836277B2 (ja) * 1991-03-14 1998-12-14 国際電信電話株式会社 エコーキャンセル装置
JP3089082B2 (ja) * 1991-07-10 2000-09-18 シャープ株式会社 適応型ディジタルフィルタ
JP2541044B2 (ja) * 1991-08-29 1996-10-09 真作 森 適応フィルタ装置
JP3517883B2 (ja) * 1992-03-19 2004-04-12 日産自動車株式会社 適応制御装置及び能動型騒音制御装置
JP2780576B2 (ja) * 1992-08-05 1998-07-30 日本電気株式会社 干渉波除去装置
US5526347A (en) * 1992-11-02 1996-06-11 Advanced Micro Devices, Inc. Decorrelation controller for an adaptive echo cancellor
JP3068996B2 (ja) * 1993-12-21 2000-07-24 真作 森 適応フィルタ装置及びそのステップゲインの発生方法
JP3268572B2 (ja) * 1994-02-10 2002-03-25 日本電信電話株式会社 反響消去装置及び方法
JPH07248784A (ja) * 1994-03-10 1995-09-26 Nissan Motor Co Ltd 能動型騒音制御装置

Also Published As

Publication number Publication date
EP0870365B1 (en) 2003-04-16
CN1130827C (zh) 2003-12-10
KR19990076870A (ko) 1999-10-25
WO1997024804A1 (en) 1997-07-10
EP0870365A1 (en) 1998-10-14
NO982958L (no) 1998-08-25
NO982958D0 (no) 1998-06-25
AU1294597A (en) 1997-07-28
AR015331A1 (es) 2001-05-02
RU2180984C2 (ru) 2002-03-27
TR199801219T2 (xx) 1998-09-21
HK1017521A1 (en) 1999-11-19
AU723628B2 (en) 2000-08-31
DE69627530D1 (de) 2003-05-22
JP2000502861A (ja) 2000-03-07
KR100423472B1 (ko) 2004-05-17
BR9612356A (pt) 1999-07-13
CN1209227A (zh) 1999-02-24
US5978473A (en) 1999-11-02

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