NL8601604A - Frequentie-domein blok-adaptief digitaal filter. - Google Patents

Frequentie-domein blok-adaptief digitaal filter. Download PDF

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Publication number
NL8601604A
NL8601604A NL8601604A NL8601604A NL8601604A NL 8601604 A NL8601604 A NL 8601604A NL 8601604 A NL8601604 A NL 8601604A NL 8601604 A NL8601604 A NL 8601604A NL 8601604 A NL8601604 A NL 8601604A
Authority
NL
Netherlands
Prior art keywords
domain
frequency domain
length
time
block
Prior art date
Application number
NL8601604A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL8601604A priority Critical patent/NL8601604A/nl
Priority to US07/057,561 priority patent/US4807173A/en
Priority to DE8787201133T priority patent/DE3772863D1/de
Priority to EP87201133A priority patent/EP0250048B1/en
Priority to AU74466/87A priority patent/AU7446687A/en
Priority to CA000540073A priority patent/CA1266893A/en
Priority to JP62152444A priority patent/JPH073936B2/ja
Publication of NL8601604A publication Critical patent/NL8601604A/nl

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
    • H03H21/0025—Particular filtering methods
    • H03H21/0027—Particular filtering methods filtering in the frequency domain

Landscapes

  • Filters That Use Time-Delay Elements (AREA)
  • Complex Calculations (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
NL8601604A 1986-06-20 1986-06-20 Frequentie-domein blok-adaptief digitaal filter. NL8601604A (nl)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL8601604A NL8601604A (nl) 1986-06-20 1986-06-20 Frequentie-domein blok-adaptief digitaal filter.
US07/057,561 US4807173A (en) 1986-06-20 1987-06-03 Frequency-domain block-adaptive digital filter
DE8787201133T DE3772863D1 (de) 1986-06-20 1987-06-16 Blockadaptives, digitales filter im frequenzgebiet.
EP87201133A EP0250048B1 (en) 1986-06-20 1987-06-16 Frequency-domain block-adaptive digital filter
AU74466/87A AU7446687A (en) 1986-06-20 1987-06-18 Digital filter
CA000540073A CA1266893A (en) 1986-06-20 1987-06-18 Frequency-domain block-adaptive digital filter
JP62152444A JPH073936B2 (ja) 1986-06-20 1987-06-20 周波数域ブロック適応ディジタルフィルタ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8601604 1986-06-20
NL8601604A NL8601604A (nl) 1986-06-20 1986-06-20 Frequentie-domein blok-adaptief digitaal filter.

Publications (1)

Publication Number Publication Date
NL8601604A true NL8601604A (nl) 1988-01-18

Family

ID=19848198

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8601604A NL8601604A (nl) 1986-06-20 1986-06-20 Frequentie-domein blok-adaptief digitaal filter.

Country Status (7)

Country Link
US (1) US4807173A (ja)
EP (1) EP0250048B1 (ja)
JP (1) JPH073936B2 (ja)
AU (1) AU7446687A (ja)
CA (1) CA1266893A (ja)
DE (1) DE3772863D1 (ja)
NL (1) NL8601604A (ja)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951269A (en) * 1986-10-30 1990-08-21 Fujitsu Limited Echo canceller with short processing delay and decreased multiplication number
NL8701633A (nl) * 1987-07-10 1989-02-01 Philips Nv Digitale echocompensator.
FR2622069B1 (fr) * 1987-10-16 1995-04-07 Thomson Csf Dispositif de filtrage numerique et radar comportant un tel dispositif
US5209237A (en) * 1990-04-12 1993-05-11 Felix Rosenthal Method and apparatus for detecting a signal from a noisy environment and fetal heartbeat obtaining method
US5272656A (en) * 1990-09-21 1993-12-21 Cambridge Signal Technologies, Inc. System and method of producing adaptive FIR digital filter with non-linear frequency resolution
US5270953A (en) * 1991-05-23 1993-12-14 Rockwell International Corporation Fast convolution multiplier
FR2680924B1 (fr) * 1991-09-03 1997-06-06 France Telecom Procede de filtrage adapte d'un signal transforme en sous-bandes, et dispositif de filtrage correspondant.
EP1304797A3 (en) * 1992-07-07 2007-11-28 Dolby Laboratories Licensing Corporation Digital filter having high accuracy and efficiency
US5329587A (en) * 1993-03-12 1994-07-12 At&T Bell Laboratories Low-delay subband adaptive filter
US6310963B1 (en) 1994-09-30 2001-10-30 Sensormatic Electronics Corp Method and apparatus for detecting an EAS (electronic article surveillance) marker using wavelet transform signal processing
US5526426A (en) * 1994-11-08 1996-06-11 Signalworks System and method for an efficiently constrained frequency-domain adaptive filter
US5891045A (en) * 1996-07-17 1999-04-06 Cambridge Heart, Inc. Method and system for obtaining a localized cardiac measure
US5891047A (en) * 1997-03-14 1999-04-06 Cambridge Heart, Inc. Detecting abnormal activation of heart
US5827195A (en) * 1997-05-09 1998-10-27 Cambridge Heart, Inc. Electrocardiogram noise reduction using multi-dimensional filtering
KR19990069891A (ko) * 1998-02-13 1999-09-06 전주범 적응 회귀 디지털 필터 알고리즘을 이용한 중심 주파수 추적 방법
DE19814971A1 (de) * 1998-04-03 1999-10-07 Daimlerchrysler Aerospace Ag Verfahren zur Störbefreiung eines Mikrophonsignals
FR2782180B1 (fr) 1998-08-06 2001-09-07 France Telecom Dispositif de traitement numerique a filtrage frequentiel et a complexite de calcul reduite
US6266003B1 (en) * 1998-08-28 2001-07-24 Sigma Audio Research Limited Method and apparatus for signal processing for time-scale and/or pitch modification of audio signals
EP1110155A1 (en) 1998-09-03 2001-06-27 Conexant Systems, Inc. A method of frequency domain filtering employing a real to analytic transform
AUPP790598A0 (en) * 1998-12-23 1999-01-28 Lake Dsp Pty Limited Efficient impulse response convolution method and apparatus
US6654429B1 (en) 1998-12-31 2003-11-25 At&T Corp. Pilot-aided channel estimation for OFDM in wireless systems
US6269161B1 (en) 1999-05-20 2001-07-31 Signalworks, Inc. System and method for near-end talker detection by spectrum analysis
US6934387B1 (en) * 1999-12-17 2005-08-23 Marvell International Ltd. Method and apparatus for digital near-end echo/near-end crosstalk cancellation with adaptive correlation
US6885712B1 (en) * 2000-08-16 2005-04-26 Agere Systems Inc. Methods and devices for minimizing interblock interference using an optimum time of reference
US6963649B2 (en) * 2000-10-24 2005-11-08 Adaptive Technologies, Inc. Noise cancelling microphone
US6961373B2 (en) 2002-07-01 2005-11-01 Solarflare Communications, Inc. Method and apparatus for channel equalization
US7164764B2 (en) 2002-11-07 2007-01-16 Solarflare Communications, Inc. Method and apparatus for precode crosstalk mitigation
JP2006524970A (ja) * 2003-04-28 2006-11-02 ソーラーフレア・コミュニケーションズ・インコーポレイテッド 多重チャネルにおける混信の解消
US20040213354A1 (en) 2003-04-28 2004-10-28 Jones William W. Mixed domain cancellation
US8363535B2 (en) 2003-04-28 2013-01-29 Marvell International Ltd. Frequency domain echo and next cancellation
US7002897B2 (en) 2003-04-28 2006-02-21 Solarflare Communications, Inc. Multiple channel interference cancellation
US7577248B2 (en) * 2004-06-25 2009-08-18 Texas Instruments Incorporated Method and apparatus for echo cancellation, digit filter adaptation, automatic gain control and echo suppression utilizing block least mean squares
US20060018460A1 (en) * 2004-06-25 2006-01-26 Mccree Alan V Acoustic echo devices and methods
US20070168408A1 (en) * 2006-01-13 2007-07-19 Via Technologies, Inc. Parallel system and method for acceleration of multiple channel LMS based algorithms
US8761387B2 (en) 2006-05-04 2014-06-24 Mindspeed Technologies, Inc. Analog transmit crosstalk canceller
US7839953B2 (en) 2006-05-25 2010-11-23 Kabushiki Kaisha Toshiba Transmission signal generating unit and radar transmission device using the same
US7808407B2 (en) 2007-06-15 2010-10-05 Solarflare Communications, Inc. Sub-channel distortion mitigation in parallel digital systems
US7948862B2 (en) 2007-09-26 2011-05-24 Solarflare Communications, Inc. Crosstalk cancellation using sliding filters
US9084049B2 (en) 2010-10-14 2015-07-14 Dolby Laboratories Licensing Corporation Automatic equalization using adaptive frequency-domain filtering and dynamic fast convolution
EP2730026B1 (en) * 2011-05-05 2020-09-30 Cerence Operating Company Low-delay filtering
JP6154777B2 (ja) * 2014-04-25 2017-06-28 日本電信電話株式会社 高速畳込近似装置、高速畳込近似方法、プログラム
JP6967714B2 (ja) 2017-10-27 2021-11-17 パナソニックＩｐマネジメント株式会社 能動騒音低減装置、車両、及び、能動騒音低減方法
US11632147B2 (en) * 2020-08-13 2023-04-18 Marvell Asia Pte, Ltd. Simplified frequency-domain filter adaptation window

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883726A (en) * 1971-09-22 1975-05-13 Interstate Electronics Corp Redundant fast fourier transform data handling computer

Also Published As

Publication number Publication date
AU7446687A (en) 1987-12-24
DE3772863D1 (de) 1991-10-17
CA1266893A (en) 1990-03-20
JPH073936B2 (ja) 1995-01-18
US4807173A (en) 1989-02-21
EP0250048A1 (en) 1987-12-23
EP0250048B1 (en) 1991-09-11
JPS634710A (ja) 1988-01-09

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