DE3772863D1 - Blockadaptives, digitales filter im frequenzgebiet. - Google Patents

Blockadaptives, digitales filter im frequenzgebiet.

Info

Publication number
DE3772863D1
DE3772863D1 DE8787201133T DE3772863T DE3772863D1 DE 3772863 D1 DE3772863 D1 DE 3772863D1 DE 8787201133 T DE8787201133 T DE 8787201133T DE 3772863 T DE3772863 T DE 3772863T DE 3772863 D1 DE3772863 D1 DE 3772863D1
Authority
DE
Germany
Prior art keywords
digital filter
frequency area
block adaptive
adaptive
block
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
DE8787201133T
Other languages
English (en)
Inventor
Petrus Christianus Wilh Sommen
Theodoor Antonius Care Claasen
Gerwen Petrus Josephus Van
Hendrik Jan Kotmans
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE3772863D1 publication Critical patent/DE3772863D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00Adaptive networks
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00Adaptive networks
    • H03H21/0012Digital adaptive filters
    • H03H21/0025Particular filtering methods
    • H03H21/0027Particular filtering methods filtering in the frequency domain
DE8787201133T 1986-06-20 1987-06-16 Blockadaptives, digitales filter im frequenzgebiet. Expired - Lifetime DE3772863D1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE3772863D1 true DE3772863D1 (de) 1991-10-17

Family

ID=19848198

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787201133T Expired - Lifetime DE3772863D1 (de) 1986-06-20 1987-06-16 Blockadaptives, digitales filter im frequenzgebiet.

Country Status (7)

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

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CA1332187C (en) * 1986-10-30 1994-09-27 Fumio Amano 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.
DK0649578T3 (da) * 1992-07-07 2003-09-15 Lake Technology Ltd Digitalt filter med høj præcision og effektivitet
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
US6047206A (en) * 1996-07-17 2000-04-04 Cambridge Heart, Inc. Generation of localized cardiac measures
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
WO2000014650A1 (en) * 1998-09-03 2000-03-16 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
US20040213354A1 (en) 2003-04-28 2004-10-28 Jones William W. Mixed domain cancellation
US7002897B2 (en) 2003-04-28 2006-02-21 Solarflare Communications, Inc. Multiple channel interference cancellation
WO2004098088A2 (en) * 2003-04-28 2004-11-11 Solarflare Communications, Inc. Multiple channel interference cancellation
US8363535B2 (en) 2003-04-28 2013-01-29 Marvell International Ltd. Frequency domain echo and next 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
CN103155591B (zh) 2010-10-14 2015-09-09 杜比实验室特许公司 使用自适应频域滤波和动态快速卷积的自动均衡方法及装置
WO2012150942A1 (en) * 2011-05-05 2012-11-08 Nuance Communications, Inc. 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
EP0250048A1 (de) 1987-12-23
JPS634710A (ja) 1988-01-09
JPH073936B2 (ja) 1995-01-18
CA1266893A (en) 1990-03-20
EP0250048B1 (de) 1991-09-11
NL8601604A (nl) 1988-01-18
AU7446687A (en) 1987-12-24
US4807173A (en) 1989-02-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8339 Ceased/non-payment of the annual fee