DE69223147T2 - Lärmdämpfsystem - Google Patents

Lärmdämpfsystem

Info

Publication number
DE69223147T2
DE69223147T2 DE69223147T DE69223147T DE69223147T2 DE 69223147 T2 DE69223147 T2 DE 69223147T2 DE 69223147 T DE69223147 T DE 69223147T DE 69223147 T DE69223147 T DE 69223147T DE 69223147 T2 DE69223147 T2 DE 69223147T2
Authority
DE
Germany
Prior art keywords
noise reduction
reduction system
noise
reduction
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 - Fee Related
Application number
DE69223147T
Other languages
English (en)
Other versions
DE69223147D1 (de
Inventor
Owen Jones
Michael Trinder
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.)
Noise Cancellation Technologies Inc
Original Assignee
Noise Cancellation Technologies 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 Noise Cancellation Technologies Inc filed Critical Noise Cancellation Technologies Inc
Publication of DE69223147D1 publication Critical patent/DE69223147D1/de
Application granted granted Critical
Publication of DE69223147T2 publication Critical patent/DE69223147T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • 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
    • G10K11/17825—Error signals
    • 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
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • 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
    • 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
    • G10K2210/321—Physical
    • G10K2210/3211—Active mounts for vibrating structures with means to actively suppress the vibration, e.g. for vehicles
    • 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
    • G10K2210/321—Physical
    • G10K2210/3212—Actuator details, e.g. composition or microstructure

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Transplanting Machines (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
DE69223147T 1991-07-30 1992-07-28 Lärmdämpfsystem Expired - Fee Related DE69223147T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919116433A GB9116433D0 (en) 1991-07-30 1991-07-30 Noise reduction system
PCT/GB1992/001399 WO1993003479A1 (en) 1991-07-30 1992-07-28 Noise reduction system

Publications (2)

Publication Number Publication Date
DE69223147D1 DE69223147D1 (de) 1997-12-18
DE69223147T2 true DE69223147T2 (de) 1998-04-09

Family

ID=10699227

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69223147T Expired - Fee Related DE69223147T2 (de) 1991-07-30 1992-07-28 Lärmdämpfsystem

Country Status (9)

Country Link
US (1) US5638454A (de)
EP (1) EP0596971B1 (de)
JP (1) JPH06511568A (de)
KR (1) KR100231938B1 (de)
AU (1) AU665565B2 (de)
CA (1) CA2114529C (de)
DE (1) DE69223147T2 (de)
GB (1) GB9116433D0 (de)
WO (1) WO1993003479A1 (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6850252B1 (en) 1999-10-05 2005-02-01 Steven M. Hoffberg Intelligent electronic appliance system and method
US5732143A (en) 1992-10-29 1998-03-24 Andrea Electronics Corp. Noise cancellation apparatus
WO1994023420A1 (en) * 1993-04-07 1994-10-13 Noise Cancellation Technologies, Inc. Hybrid analog/digital vibration control system
EP0705472B1 (de) * 1993-06-23 2000-05-10 Noise Cancellation Technologies, Inc. Aktive lärmunterdrückungsanordnung mit variabler verstärkung und verbesserter restlärmmessung
US6057014A (en) * 1995-07-26 2000-05-02 E. I. Du Pont De Nemours And Company Laminates of composition for improving adhesion of elastomers to polymer compositions
JP3384478B2 (ja) * 1996-01-22 2003-03-10 富士ゼロックス株式会社 画像形成装置における騒音マスキング装置および騒音マスキング方法
EP0904035A4 (de) * 1996-06-05 1999-09-29 Cooper Tire & Rubber Co Aktiven rückkopplungskontrolleanordnung zur schmalbandstörungsunterdrückung in einem breiten spektralbereich
JP2939940B2 (ja) 1996-07-09 1999-08-25 日本電気株式会社 ファン音消音装置
WO1999005998A1 (en) 1997-07-29 1999-02-11 Telex Communications, Inc. Active noise cancellation aircraft headset system
JP4000217B2 (ja) * 1998-05-15 2007-10-31 株式会社オーディオテクニカ マイクロホン
US6766288B1 (en) 1998-10-29 2004-07-20 Paul Reed Smith Guitars Fast find fundamental method
US7003120B1 (en) 1998-10-29 2006-02-21 Paul Reed Smith Guitars, Inc. Method of modifying harmonic content of a complex waveform
US6363345B1 (en) 1999-02-18 2002-03-26 Andrea Electronics Corporation System, method and apparatus for cancelling noise
US7024006B1 (en) * 1999-06-24 2006-04-04 Stephen R. Schwartz Complementary-pair equalizer
US20060072768A1 (en) * 1999-06-24 2006-04-06 Schwartz Stephen R Complementary-pair equalizer
US6594367B1 (en) 1999-10-25 2003-07-15 Andrea Electronics Corporation Super directional beamforming design and implementation
CA2396260C (en) * 2000-01-07 2007-09-11 Lewis Athanas Mechanical-to-acoustical transformer and multi-media flat film speaker
DE10062349A1 (de) * 2000-12-14 2002-06-20 Daimler Chrysler Ag Verfahren und Anordnung zur Steuerung und/oder Regelung einer Last eines Fahrzeugs
US6424282B1 (en) 2001-03-09 2002-07-23 Sony Corporation Method and apparatus for noise compensation in digital to analog converters
US6520678B2 (en) 2001-03-27 2003-02-18 Spicer Driveshaft, Inc. Vehicle center bearing assembly including piezo-based device for vibration damping
US6896095B2 (en) 2002-03-26 2005-05-24 Ford Motor Company Fan shroud with built in noise reduction
US7394878B2 (en) * 2004-06-28 2008-07-01 X-Cyte, Inc. Digital frequency determining apparatus and methods using matched filters
JP5064384B2 (ja) * 2005-05-31 2012-10-31 エモ・ラブズ・インコーポレーテッド 環境状態に感応するダイアフラム膜及び支持構造
GB2456501B (en) * 2007-11-13 2009-12-23 Wolfson Microelectronics Plc Ambient noise-reduction system
WO2009067669A1 (en) * 2007-11-21 2009-05-28 Emo Labs, Inc.. Wireless loudspeaker
US8189851B2 (en) 2009-03-06 2012-05-29 Emo Labs, Inc. Optically clear diaphragm for an acoustic transducer and method for making same
WO2011020100A1 (en) * 2009-08-14 2011-02-17 Emo Labs, Inc System to generate electrical signals for a loudspeaker
FR2955387B1 (fr) * 2010-01-21 2012-03-09 Commissariat Energie Atomique Mesure d'un mouvement cyclique d'une piece ferromagnetique
WO2014143927A2 (en) 2013-03-15 2014-09-18 Emo Labs, Inc. Acoustic transducers
USD733678S1 (en) 2013-12-27 2015-07-07 Emo Labs, Inc. Audio speaker
USD741835S1 (en) 2013-12-27 2015-10-27 Emo Labs, Inc. Speaker
USD748072S1 (en) 2014-03-14 2016-01-26 Emo Labs, Inc. Sound bar audio speaker
EP3157000B1 (de) * 2015-10-16 2020-11-25 Harman Becker Automotive Systems GmbH Skalierbare rausch- und vibrations-erfassung
US11335312B2 (en) 2016-11-08 2022-05-17 Andersen Corporation Active noise cancellation systems and methods
US10319360B1 (en) * 2018-03-06 2019-06-11 GM Global Technology Operations LLC Active masking of tonal noise using motor-based acoustic generator to improve sound quality
US10916234B2 (en) 2018-05-04 2021-02-09 Andersen Corporation Multiband frequency targeting for noise attenuation
DE102018219644A1 (de) * 2018-11-16 2020-05-20 Zf Friedrichshafen Ag Aktive Reduktion von Schallemissionen an einem Kraftfahrzeug
IT201900005116A1 (it) * 2019-04-04 2020-10-04 Lavorosostenibile Srl Dispositivo di attenuazione attiva e controllo del rumore

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2776020A (en) * 1955-02-09 1957-01-01 Gen Electric Noise reducing system for transformers
US4334730A (en) * 1979-11-26 1982-06-15 Bunker Ramo Corporation Insulated from ground bulkhead adapter
JPS57203434A (en) * 1981-06-08 1982-12-13 Tokyo Shibaura Electric Co Ultrasonic diagnostic apparatus
ZA825676B (en) * 1981-08-11 1983-06-29 Sound Attenuators Ltd Method and apparatus for low frequency active attennuation
EP0091926B1 (de) * 1981-10-21 1987-08-26 Sound Attenuators Limited Verfahren und gerät zur schwingungsunterdrückung
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
US4689821A (en) * 1985-09-23 1987-08-25 Lockheed Corporation Active noise control system
US5170433A (en) * 1986-10-07 1992-12-08 Adaptive Control Limited Active vibration control
DE3819178A1 (de) * 1987-06-04 1988-12-22 Ricoh Kk Spracherkennungsverfahren und -einrichtung
NL8802917A (nl) * 1988-11-28 1990-06-18 Philips Nv Direktmengende am-synchroonontvanger.
US5293578A (en) * 1989-07-19 1994-03-08 Fujitso Ten Limited Noise reducing device
GB8929358D0 (en) * 1989-12-30 1990-02-28 2020 Science Limited Active vibration reducing system
US5224170A (en) * 1991-04-15 1993-06-29 Hewlett-Packard Company Time domain compensation for transducer mismatch

Also Published As

Publication number Publication date
US5638454A (en) 1997-06-10
AU665565B2 (en) 1996-01-11
EP0596971B1 (de) 1997-11-12
JPH06511568A (ja) 1994-12-22
EP0596971A1 (de) 1994-05-18
DE69223147D1 (de) 1997-12-18
WO1993003479A1 (en) 1993-02-18
AU2369592A (en) 1993-03-02
KR100231938B1 (ko) 1999-12-01
CA2114529A1 (en) 1993-02-18
GB9116433D0 (en) 1991-09-11
CA2114529C (en) 2002-09-03

Similar Documents

Publication Publication Date Title
DE69223147T2 (de) Lärmdämpfsystem
DE69130452D1 (de) Rauschunterdrückungssystem
DE69319783T2 (de) Geräuschminderungssystem
DE69313480T2 (de) Rauschverminderungseinrichtung
DE69420027D1 (de) Rauschverminderung
DE69219717T2 (de) Möbelsystem
DE69224973D1 (de) Verbindungssystem
DE69230767D1 (de) Geräuschverminderungsmikrophonapparat
DE3856280D1 (de) Lärmunterdrückungssystem
DE69118014T2 (de) Rauschverminderungsanordnungen
DE69417216D1 (de) Rauschreduktion
DE69328987T2 (de) Rauschreduktionsvorrichtung
DE69233473D1 (de) Rauschunterdrückungsschaltung
FI920642A0 (fi) Aktiivinen melunvaimennusjärjestelmä
DE69210169D1 (de) Aktives Lärmunterdrückungssystem
DE69316938T2 (de) Rauschverminderungsvorrichtung
DE69219273D1 (de) Aktives Lärmunterdrückungssystem
DE69124087T2 (de) Rauschverminderungsgerät
DE69228951T2 (de) Geräuschunterdrückungssystem
DE69615129D1 (de) Rauschdämfersystem
KR930016253U (ko) 노이즈 감쇄용 아이씨의 핀 구조
ATE178775T1 (de) Geräuschunterdrückungssystem
KR950009296U (ko) 소음 저감용 브레이크장치
FI921209A (fi) Ziegler-katalysatorsystem
DK41692D0 (da) Inventarsystem

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee