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DE69424932D1 - Indirekt abgetastete signalverarbeitung in aktiver periodischer geräuschunterdrückung - Google Patents

Indirekt abgetastete signalverarbeitung in aktiver periodischer geräuschunterdrückung

Info

Publication number
DE69424932D1
DE69424932D1 DE69424932T DE69424932T DE69424932D1 DE 69424932 D1 DE69424932 D1 DE 69424932D1 DE 69424932 T DE69424932 T DE 69424932T DE 69424932 T DE69424932 T DE 69424932T DE 69424932 D1 DE69424932 D1 DE 69424932D1
Authority
DE
Germany
Prior art keywords
signal processing
noise reduction
periodic noise
scanned signal
active periodic
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
DE69424932T
Other languages
English (en)
Other versions
DE69424932T2 (de
Inventor
M Kuo
Ji Minjiang
Kathryn Christensen
A Herold
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.)
Caterpillar Inc
Original Assignee
Caterpillar 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 Caterpillar Inc filed Critical Caterpillar Inc
Application granted granted Critical
Publication of DE69424932D1 publication Critical patent/DE69424932D1/de
Publication of DE69424932T2 publication Critical patent/DE69424932T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17821—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
    • G10K11/17823—Reference signals, e.g. ambient acoustic environment
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17855—Methods, e.g. algorithms; Devices for improving speed or power requirements
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17883—General system configurations using both a reference signal and an error signal the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/121—Rotating machines, e.g. engines, turbines, motors; Periodic or quasi-periodic signals in general
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3028—Filtering, e.g. Kalman filters or special analogue or digital filters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3032—Harmonics or sub-harmonics
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3045—Multiple acoustic inputs, single acoustic output

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
DE69424932T 1993-11-29 1994-10-27 Indirekt abgetastete signalverarbeitung in aktiver periodischer geräuschunterdrückung Expired - Lifetime DE69424932T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/158,328 US5502770A (en) 1993-11-29 1993-11-29 Indirectly sensed signal processing in active periodic acoustic noise cancellation
PCT/US1994/012399 WO1995014988A1 (en) 1993-11-29 1994-10-27 Indirectly sensed signal processing in active periodic acoustic noise cancellation

Publications (2)

Publication Number Publication Date
DE69424932D1 true DE69424932D1 (de) 2000-07-20
DE69424932T2 DE69424932T2 (de) 2001-02-01

Family

ID=22567623

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69424932T Expired - Lifetime DE69424932T2 (de) 1993-11-29 1994-10-27 Indirekt abgetastete signalverarbeitung in aktiver periodischer geräuschunterdrückung

Country Status (5)

Country Link
US (1) US5502770A (de)
EP (1) EP0681727B1 (de)
JP (1) JPH08506433A (de)
DE (1) DE69424932T2 (de)
WO (1) WO1995014988A1 (de)

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FR2732807B1 (fr) * 1995-04-04 1997-05-16 Technofirst Procede et dispositif personnels d'attenuation acoustique active, siege equipe du dispositif correspondant, et espace a attenuation acoustique active obtenu
GB9920883D0 (en) 1999-09-03 1999-11-10 Titon Hardware Ventilation assemblies
US6622647B2 (en) 2001-06-26 2003-09-23 Depoy Martin L. Active noise cancellation for a torpedo seeker head
US7050516B2 (en) * 2003-03-20 2006-05-23 Broadcom Corporation System and method for periodic noise avoidance in data transmission systems
US7387498B2 (en) * 2003-12-04 2008-06-17 York International Corporation System and method for noise attenuation of screw compressors
US8270625B2 (en) * 2006-12-06 2012-09-18 Brigham Young University Secondary path modeling for active noise control
US7854596B2 (en) * 2007-01-24 2010-12-21 Johnson Controls Technology Company System and method of operation of multiple screw compressors with continuously variable speed to provide noise cancellation
EP2051543B1 (de) * 2007-09-27 2011-07-27 Harman Becker Automotive Systems GmbH Automatische Bassregelung
US8365637B2 (en) * 2007-10-23 2013-02-05 Caterpillar Inc. Drop box for powertrain
US8325934B2 (en) * 2007-12-07 2012-12-04 Board Of Trustees Of Northern Illinois University Electronic pillow for abating snoring/environmental noises, hands-free communications, and non-invasive monitoring and recording
US9247346B2 (en) 2007-12-07 2016-01-26 Northern Illinois Research Foundation Apparatus, system and method for noise cancellation and communication for incubators and related devices
JP2013506075A (ja) * 2009-09-29 2013-02-21 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 音響冷却システムのためのノイズ低減
US20130182865A1 (en) * 2011-12-30 2013-07-18 Agco Corporation Acoustic fault detection of mechanical systems with active noise cancellation
US9118987B2 (en) * 2013-03-12 2015-08-25 Bose Corporation Motor vehicle active noise reduction
JP6384784B2 (ja) * 2014-08-05 2018-09-05 パナソニックＩｐマネジメント株式会社 信号処理装置、プログラム、レンジフード装置

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* Cited by examiner, † Cited by third party
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GB1577322A (en) * 1976-05-13 1980-10-22 Bearcroft R Active attenuation of recurring vibrations
US4122303A (en) * 1976-12-10 1978-10-24 Sound Attenuators Limited Improvements in and relating to active sound attenuation
US4423289A (en) * 1979-06-28 1983-12-27 National Research Development Corporation Signal processing systems
DE3066842D1 (en) * 1979-08-16 1984-04-12 Sound Attenuators Ltd A method of reducing the adaption time in the cancellation of repetitive vibration
AU542511B2 (en) * 1979-11-21 1985-02-21 Chaplin Patents Holding Co. Ltd Improved method and appartus for cancelling vibration
DE3106029A1 (de) * 1981-02-19 1982-09-09 Volkswagenwerk Ag, 3180 Wolfsburg "verfahren und anordnung zur verringerung des geraeuschpegels im kopfbereich von kraftfahrzeuginsassen"
US4480333A (en) * 1981-04-15 1984-10-30 National Research Development Corporation Method and apparatus for active sound control
ZA824145B (en) * 1981-06-12 1983-04-27 Sound Attenuators Ltd Method and apparatus for reducing repetitive noise entering the ear
ZA825676B (en) * 1981-08-11 1983-06-29 Sound Attenuators Ltd Method and apparatus for low frequency active attennuation
AU550818B2 (en) * 1981-10-21 1986-04-10 Chaplin Patents Holding Co. Ltd Improved method and apparatus for cancelling vibrations
ZA828700B (en) * 1981-11-26 1983-09-28 Sound Attenuators Ltd Method of and apparatus for cancelling vibrations from a source of repetitive vibrations
JPH0646058B2 (ja) * 1982-04-19 1994-06-15 チャプリン パテンツ ホ−ルディング カンパニ− インコ−ポレ−テッド 振動源から支持構造物への振動伝達を減衰させるための装置
JPS599699A (ja) * 1982-07-07 1984-01-19 日産自動車株式会社 自動車の車室内音場制御装置
GB8317086D0 (en) * 1983-06-23 1983-07-27 Swinbanks M A Attenuation of sound waves
GB8404494D0 (en) * 1984-02-21 1984-03-28 Swinbanks M A Attenuation of sound waves
GB8405914D0 (en) * 1984-03-07 1984-04-11 Swinbanks M A Reducing noise by cancellation
GB2160742B (en) * 1984-06-21 1988-02-03 Nat Res Dev Damping for directional sound cancellation
US5097923A (en) * 1988-02-19 1992-03-24 Noise Cancellation Technologies, Inc. Active sound attenation system for engine exhaust systems and the like
US4862506A (en) * 1988-02-24 1989-08-29 Noise Cancellation Technologies, Inc. Monitoring, testing and operator controlling of active noise and vibration cancellation systems
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US4987598A (en) * 1990-05-03 1991-01-22 Nelson Industries Active acoustic attenuation system with overall modeling
US5146505A (en) * 1990-10-04 1992-09-08 General Motors Corporation Method for actively attenuating engine generated noise
US5221185A (en) * 1991-08-05 1993-06-22 General Electric Company Method and apparatus for synchronizing rotating machinery to reduce noise
US5219037A (en) * 1992-01-21 1993-06-15 General Motors Corporation Component mount assembly providing active control of vehicle vibration
GB2265277B (en) * 1992-03-17 1996-07-24 Fuji Heavy Ind Ltd Noise reduction system for automobile compartment
US5222148A (en) * 1992-04-29 1993-06-22 General Motors Corporation Active noise control system for attenuating engine generated noise

Also Published As

Publication number Publication date
JPH08506433A (ja) 1996-07-09
EP0681727B1 (de) 2000-06-14
EP0681727A1 (de) 1995-11-15
US5502770A (en) 1996-03-26
WO1995014988A1 (en) 1995-06-01
DE69424932T2 (de) 2001-02-01

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Legal Events

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8364 No opposition during term of opposition