DE69410322T2 - Adaptives Subbandfilter mit geringer Verzögerung - Google Patents

Adaptives Subbandfilter mit geringer Verzögerung

Info

Publication number
DE69410322T2
DE69410322T2 DE69410322T DE69410322T DE69410322T2 DE 69410322 T2 DE69410322 T2 DE 69410322T2 DE 69410322 T DE69410322 T DE 69410322T DE 69410322 T DE69410322 T DE 69410322T DE 69410322 T2 DE69410322 T2 DE 69410322T2
Authority
DE
Germany
Prior art keywords
low delay
subband filter
adaptive subband
adaptive
filter
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
DE69410322T
Other languages
English (en)
Other versions
DE69410322D1 (de
Inventor
Dennis B Morgan
James Chi Huu Thi
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.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Publication of DE69410322D1 publication Critical patent/DE69410322D1/de
Application granted granted Critical
Publication of DE69410322T2 publication Critical patent/DE69410322T2/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
    • 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

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Noise Elimination (AREA)
  • Complex Calculations (AREA)
  • Feedback Control In General (AREA)
DE69410322T 1993-03-12 1994-03-02 Adaptives Subbandfilter mit geringer Verzögerung Expired - Lifetime DE69410322T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/030,931 US5329587A (en) 1993-03-12 1993-03-12 Low-delay subband adaptive filter

Publications (2)

Publication Number Publication Date
DE69410322D1 DE69410322D1 (de) 1998-06-25
DE69410322T2 true DE69410322T2 (de) 1998-10-01

Family

ID=21856756

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69410322T Expired - Lifetime DE69410322T2 (de) 1993-03-12 1994-03-02 Adaptives Subbandfilter mit geringer Verzögerung

Country Status (5)

Country Link
US (1) US5329587A (de)
EP (1) EP0615340B1 (de)
JP (1) JP3177562B2 (de)
CA (1) CA2118879C (de)
DE (1) DE69410322T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19947682B4 (de) * 1998-10-07 2005-11-10 Zarlink Semiconductor Inc., City Of Ottawa Nullverzögerungs-Struktur zur Subband-Echokompensation, Echokompensation und Verfahren zur Echokompensation

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JPH06318885A (ja) * 1993-03-11 1994-11-15 Nec Corp 帯域分割適応フィルタによる未知システム同定の方法及び装置
US5644596A (en) * 1994-02-01 1997-07-01 Qualcomm Incorporated Method and apparatus for frequency selective adaptive filtering
FR2726392B1 (fr) * 1994-10-28 1997-01-10 Alcatel Mobile Comm France Procede et dispositif de suppression de bruit dans un signal de parole, et systeme avec annulation d'echo correspondant
US5745396A (en) * 1995-04-28 1998-04-28 Lucent Technologies Inc. Pipelined adaptive IIR filter
FR2733866B1 (fr) * 1995-05-05 1997-07-18 France Telecom Procede de filtrage adaptatif, par critere d'optimisation pondere d'un signal numerique decompose en sous-bandes de frequences et dispositif correspondant
JP3199155B2 (ja) * 1995-10-18 2001-08-13 日本電信電話株式会社 反響消去装置
US5737433A (en) * 1996-01-16 1998-04-07 Gardner; William A. Sound environment control apparatus
KR970066881A (ko) * 1996-03-23 1997-10-13 구자홍 서브밴드 필터의 필터링방법
US5933495A (en) * 1997-02-07 1999-08-03 Texas Instruments Incorporated Subband acoustic noise suppression
JP3236242B2 (ja) * 1997-05-12 2001-12-10 沖電気工業株式会社 エコーキャンセラ装置
US6765931B1 (en) * 1999-04-13 2004-07-20 Broadcom Corporation Gateway with voice
US6882711B1 (en) 1999-09-20 2005-04-19 Broadcom Corporation Packet based network exchange with rate synchronization
US7423983B1 (en) 1999-09-20 2008-09-09 Broadcom Corporation Voice and data exchange over a packet based network
US6549587B1 (en) 1999-09-20 2003-04-15 Broadcom Corporation Voice and data exchange over a packet based network with timing recovery
DE19925046A1 (de) * 1999-06-01 2001-05-03 Alcatel Sa Verfahren und Vorrichtung zur Unterdrückung von Rauschen und Echos
US7161931B1 (en) 1999-09-20 2007-01-09 Broadcom Corporation Voice and data exchange over a packet based network
US7924752B2 (en) 1999-09-20 2011-04-12 Broadcom Corporation Voice and data exchange over a packet based network with AGC
US6757367B1 (en) 1999-09-20 2004-06-29 Broadcom Corporation Packet based network exchange with rate synchronization
US7920697B2 (en) * 1999-12-09 2011-04-05 Broadcom Corp. Interaction between echo canceller and packet voice processing
AU2094201A (en) * 1999-12-13 2001-06-18 Broadcom Corporation Voice gateway with downstream voice synchronization
DE10043064B4 (de) * 2000-09-01 2004-07-08 Dietmar Dr. Ruwisch Verfahren und Vorrichtung zur Elimination von Lautsprecherinterferenzen aus Mikrofonsignalen
US6661858B1 (en) 2000-09-12 2003-12-09 Beaudin Andre DC restoration circuit for a radio receiver
GB2374689B (en) * 2001-04-20 2005-11-23 Eldama Systems Ip Ltd Communications system
GB0116493D0 (en) * 2001-07-06 2001-08-29 Koninkl Philips Electronics Nv Receiver having an adaptive filter and method of optimising the filter
CA2354808A1 (en) * 2001-08-07 2003-02-07 King Tam Sub-band adaptive signal processing in an oversampled filterbank
US6970896B2 (en) 2001-08-08 2005-11-29 Octasic Inc. Method and apparatus for generating a set of filter coefficients
US6965640B2 (en) * 2001-08-08 2005-11-15 Octasic Inc. Method and apparatus for generating a set of filter coefficients providing adaptive noise reduction
US6957240B2 (en) * 2001-08-08 2005-10-18 Octasic Inc. Method and apparatus for providing an error characterization estimate of an impulse response derived using least squares
US6999509B2 (en) * 2001-08-08 2006-02-14 Octasic Inc. Method and apparatus for generating a set of filter coefficients for a time updated adaptive filter
CA2399159A1 (en) * 2002-08-16 2004-02-16 Dspfactory Ltd. Convergence improvement for oversampled subband adaptive filters
WO2004098088A2 (en) * 2003-04-28 2004-11-11 Solarflare Communications, Inc. Multiple channel interference cancellation
US7149591B2 (en) * 2003-10-01 2006-12-12 Cleveland State University Multi-resolution controller
DE10362073A1 (de) * 2003-11-06 2005-11-24 Herbert Buchner Vorrichtung und Verfahren zum Verarbeiten eines Eingangssignals
CA2481629A1 (en) * 2004-09-15 2006-03-15 Dspfactory Ltd. Method and system for active noise cancellation
US7555040B2 (en) * 2004-11-05 2009-06-30 Interdigital Technology Corporation Method and apparatus for generating equalizer filter tap coefficients
WO2007036443A1 (de) * 2005-09-27 2007-04-05 Anocsys Ag Verfahren zur aktiven geräuschverminderung und eine vorrichtung zur durchführung des verfahrens
US8155304B2 (en) * 2007-04-10 2012-04-10 Microsoft Corporation Filter bank optimization for acoustic echo cancellation
US8259928B2 (en) * 2007-04-23 2012-09-04 Microsoft Corporation Method and apparatus for reducing timestamp noise in audio echo cancellation
GB0725111D0 (en) * 2007-12-21 2008-01-30 Wolfson Microelectronics Plc Lower rate emulation
DK2541973T3 (da) 2011-06-27 2014-07-14 Oticon As Tilbagekoblingsstyring i en lytteanordning
US20130259253A1 (en) * 2012-03-29 2013-10-03 Rogerio Guedes Alves Controllers for active noise control systems
EP4120699A1 (de) 2013-09-17 2023-01-18 Wilus Institute of Standards and Technology Inc. Verfahren und vorrichtung zur verarbeitung von multimediasignalen
KR101804744B1 (ko) 2013-10-22 2017-12-06 연세대학교 산학협력단 오디오 신호 처리 방법 및 장치
KR101627661B1 (ko) 2013-12-23 2016-06-07 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법, 이를 위한 파라메터화 장치 및 오디오 신호 처리 장치
KR102149216B1 (ko) 2014-03-19 2020-08-28 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법 및 장치
KR101856540B1 (ko) 2014-04-02 2018-05-11 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법 및 장치
US9837065B2 (en) * 2014-12-08 2017-12-05 Ford Global Technologies, Llc Variable bandwidth delayless subband algorithm for broadband active noise control system
US10322680B2 (en) * 2016-02-05 2019-06-18 Honda Motor Co., Ltd. Active vibration and noise control device and active vibration and noise control circuit
CN108768346B (zh) * 2018-05-30 2022-04-29 重庆交通大学 车辆主动减振降噪系统及方法
US10917074B2 (en) * 2019-03-29 2021-02-09 Bose Corporation Subband adaptive filter for systems with partially acausal transfer functions
EP3764349B1 (de) 2019-07-11 2023-05-24 Faurecia Creo AB Rauschsteuerungsverfahren und -system
EP4054210A1 (de) 2021-03-05 2022-09-07 Oticon A/s Hörgerät mit einem verzögerungsfreien adaptiven filter

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NL8601604A (nl) * 1986-06-20 1988-01-18 Philips Nv Frequentie-domein blok-adaptief digitaal filter.
WO1988003341A1 (en) * 1986-10-30 1988-05-05 Fujitsu Limited Echo canceller with short processing delay and decreased multiplication number
NL8701633A (nl) * 1987-07-10 1989-02-01 Philips Nv Digitale echocompensator.
FR2628918B1 (fr) * 1988-03-15 1990-08-10 France Etat Dispositif annuleur d'echo a filtrage en sous-bandes de frequence
US5001701A (en) * 1989-08-07 1991-03-19 At&T Bell Laboratories Subband echo canceler including real time allocation among the subbands
US4977591A (en) * 1989-11-17 1990-12-11 Nynex Corporation Dual mode LMS nonlinear data echo canceller
GB2240452A (en) * 1990-01-10 1991-07-31 Motorola Inc Echo canceller has plurality of sub-band channels each with its own adaptive filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19947682B4 (de) * 1998-10-07 2005-11-10 Zarlink Semiconductor Inc., City Of Ottawa Nullverzögerungs-Struktur zur Subband-Echokompensation, Echokompensation und Verfahren zur Echokompensation

Also Published As

Publication number Publication date
JPH06326559A (ja) 1994-11-25
CA2118879A1 (en) 1994-09-13
EP0615340A1 (de) 1994-09-14
EP0615340B1 (de) 1998-05-20
CA2118879C (en) 1997-09-23
US5329587A (en) 1994-07-12
DE69410322D1 (de) 1998-06-25
JP3177562B2 (ja) 2001-06-18

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