CA2049332C - Active sound and/or vibration control - Google Patents

Active sound and/or vibration control Download PDF

Info

Publication number
CA2049332C
CA2049332C CA002049332A CA2049332A CA2049332C CA 2049332 C CA2049332 C CA 2049332C CA 002049332 A CA002049332 A CA 002049332A CA 2049332 A CA2049332 A CA 2049332A CA 2049332 C CA2049332 C CA 2049332C
Authority
CA
Canada
Prior art keywords
vibration
source
sound
sensors
output
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
CA002049332A
Other languages
English (en)
French (fr)
Other versions
CA2049332A1 (en
Inventor
Graham Paul Eatwell
Christopher Mark Dorling
William Richard Hodson
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 CA2049332A1 publication Critical patent/CA2049332A1/en
Application granted granted Critical
Publication of CA2049332C publication Critical patent/CA2049332C/en
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
    • G10K11/1787—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
    • 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
    • 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
    • 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
    • G10K2210/3024—Expert systems, e.g. artificial intelligence
    • 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
    • G10K2210/3025—Determination of spectrum characteristics, e.g. FFT
    • 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
    • G10K2210/3042—Parallel processing
    • 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
    • G10K2210/3046—Multiple acoustic inputs, multiple acoustic outputs
    • 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
    • G10K2210/3051—Sampling, e.g. variable rate, synchronous, decimated or interpolated

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Vibration Prevention Devices (AREA)
  • Cosmetics (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
CA002049332A 1989-04-25 1990-04-20 Active sound and/or vibration control Expired - Fee Related CA2049332C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8909433.8 1989-04-25
GB8909433A GB2230920B (en) 1989-04-25 1989-04-25 Active sound and/or vibration control
PCT/GB1990/000617 WO1990013108A1 (en) 1989-04-25 1990-04-20 Active sound and/or vibration control

Publications (2)

Publication Number Publication Date
CA2049332A1 CA2049332A1 (en) 1990-10-26
CA2049332C true CA2049332C (en) 2000-08-01

Family

ID=10655687

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002049332A Expired - Fee Related CA2049332C (en) 1989-04-25 1990-04-20 Active sound and/or vibration control

Country Status (8)

Country Link
EP (1) EP0470153B1 (de)
JP (1) JPH04505221A (de)
AU (1) AU635266B2 (de)
CA (1) CA2049332C (de)
DE (1) DE69025604T2 (de)
ES (1) ES2084028T3 (de)
GB (1) GB2230920B (de)
WO (1) WO1990013108A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5485523A (en) * 1992-03-17 1996-01-16 Fuji Jukogyo Kabushiki Kaisha Active noise reduction system for automobile compartment
FR2692709B1 (fr) * 1992-06-18 1994-09-16 Renault Dispositif de contrôle actif du bruit dans l'habitacle d'un véhicule automobile.
EP0609846B1 (de) * 1993-02-02 2000-03-22 Honda Giken Kogyo Kabushiki Kaisha Schwingungs/Lärmverminderungsvorrichtung
US5660255A (en) * 1994-04-04 1997-08-26 Applied Power, Inc. Stiff actuator active vibration isolation system
DE19944985B4 (de) * 1999-09-20 2005-04-28 Siemens Ag Messverfahren zur Strommessung mit Rauschunterdrückung
US8302456B2 (en) 2006-02-23 2012-11-06 Asylum Research Corporation Active damping of high speed scanning probe microscope components

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717027A (en) * 1980-07-03 1982-01-28 Hitachi Ltd Vibration reducing device of electric machinery
JPS58153313A (ja) * 1982-03-08 1983-09-12 Hitachi Ltd 低騒音静止誘導電器
GB2122052B (en) * 1982-06-09 1986-01-29 Plessey Co Plc Reducing noise or vibration
GB8525800D0 (en) * 1985-10-18 1985-11-20 Contranoise Ltd Transfer function generation
EP0285632B1 (de) * 1986-10-07 1993-06-09 Adaptive Control Limited Aktive vibrationskontrolle
JPH01159406A (ja) * 1987-12-15 1989-06-22 Mitsui Eng & Shipbuild Co Ltd プロペラ音の能動消音方法及び装置
GB2222053B (en) * 1988-08-17 1993-03-31 Topexpress Ltd Signal processing means for sensing a periodic signal in the presence of another interfering periodic noise

Also Published As

Publication number Publication date
AU5545690A (en) 1990-11-16
DE69025604T2 (de) 1996-10-24
WO1990013108A1 (en) 1990-11-01
EP0470153B1 (de) 1996-02-28
EP0470153A1 (de) 1992-02-12
CA2049332A1 (en) 1990-10-26
DE69025604D1 (de) 1996-04-04
AU635266B2 (en) 1993-03-18
JPH04505221A (ja) 1992-09-10
GB2230920B (en) 1993-12-22
ES2084028T3 (es) 1996-05-01
GB8909433D0 (en) 1989-06-14
GB2230920A (en) 1990-10-31

Similar Documents

Publication Publication Date Title
US5365594A (en) Active sound and/or vibration control
US4490841A (en) Method and apparatus for cancelling vibrations
AU628401B2 (en) Selective active cancellation system for repetitive phenomena
US5359662A (en) Active noise control system
EP0034592B1 (de) Verfahren zum verringern der anpassungszeit beim aufheben sich wiederholender vibrationen
GB2271909A (en) Adaptive vibration control system
US5245552A (en) Method and apparatus for actively reducing multiple-source repetitive vibrations
EP0660958B1 (de) Datenabtastungsfilter mit niedriger verzoegerung
CA2049332C (en) Active sound and/or vibration control
US5638022A (en) Control system for periodic disturbances
GB1485803A (en) Method and apparatus for the analysis and synthesis of speech
US5652770A (en) Sampled-data filter with low delay
JP3646809B2 (ja) 時間領域適応制御システム
EP0731936A1 (de) Adaptives regelungssystem zur regelung von sich wiederholenden phänomenen
EP0694234B1 (de) System zur reduktion von periodischen störungen
EP0697149A1 (de) Aktive geräusch- oder vibrationsunterdrückung
Bölcskei et al. Diagonalizing the Gabor frame operator
CA2138553C (en) Control system for periodic disturbances
Wong et al. Estimation of pseudo-periodic signals
CA2095038C (en) Active vibration control system with multiple inputs
Cooper Precision digital Doppler companding
JPH06209232A (ja) 同期式フィルタ装置
CA2154027A1 (en) Apparatus for cancelling vibration
Leong et al. Digital Signal Processing for the Auditory Scientist: A Tutorial Introduction

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed