GB2230920B - Active sound and/or vibration control - Google Patents

Active sound and/or vibration control

Info

Publication number
GB2230920B
GB2230920B GB8909433A GB8909433A GB2230920B GB 2230920 B GB2230920 B GB 2230920B GB 8909433 A GB8909433 A GB 8909433A GB 8909433 A GB8909433 A GB 8909433A GB 2230920 B GB2230920 B GB 2230920B
Authority
GB
United Kingdom
Prior art keywords
vibration control
active sound
sound
active
vibration
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
GB8909433A
Other versions
GB2230920A (en
GB8909433D0 (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.)
Topexpress Ltd
Active Noise and Vibration Technologies Inc
Original Assignee
Topexpress Ltd
Active Noise and Vibration 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 Topexpress Ltd, Active Noise and Vibration Technologies Inc filed Critical Topexpress Ltd
Priority to GB8909433A priority Critical patent/GB2230920B/en
Publication of GB8909433D0 publication Critical patent/GB8909433D0/en
Priority to DE69025604T priority patent/DE69025604T2/en
Priority to JP2506649A priority patent/JPH04505221A/en
Priority to CA002049332A priority patent/CA2049332C/en
Priority to ES90907216T priority patent/ES2084028T3/en
Priority to AU55456/90A priority patent/AU635266B2/en
Priority to EP90907216A priority patent/EP0470153B1/en
Priority to PCT/GB1990/000617 priority patent/WO1990013108A1/en
Publication of GB2230920A publication Critical patent/GB2230920A/en
Application granted granted Critical
Publication of GB2230920B publication Critical patent/GB2230920B/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)
GB8909433A 1989-04-25 1989-04-25 Active sound and/or vibration control Expired - Fee Related GB2230920B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB8909433A GB2230920B (en) 1989-04-25 1989-04-25 Active sound and/or vibration control
ES90907216T ES2084028T3 (en) 1989-04-25 1990-04-20 ACTIVE CONTROL OF SOUNDS AND / OR VIBRATIONS.
JP2506649A JPH04505221A (en) 1989-04-25 1990-04-20 Active sound/vibration cancellation device
CA002049332A CA2049332C (en) 1989-04-25 1990-04-20 Active sound and/or vibration control
DE69025604T DE69025604T2 (en) 1989-04-25 1990-04-20 ACTIVE SOUND AND / OR VIBRATION CONTROL
AU55456/90A AU635266B2 (en) 1989-04-25 1990-04-20 Active sound and/or vibration control
EP90907216A EP0470153B1 (en) 1989-04-25 1990-04-20 Active sound and/or vibration control
PCT/GB1990/000617 WO1990013108A1 (en) 1989-04-25 1990-04-20 Active sound and/or vibration control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8909433A GB2230920B (en) 1989-04-25 1989-04-25 Active sound and/or vibration control

Publications (3)

Publication Number Publication Date
GB8909433D0 GB8909433D0 (en) 1989-06-14
GB2230920A GB2230920A (en) 1990-10-31
GB2230920B true GB2230920B (en) 1993-12-22

Family

ID=10655687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8909433A Expired - Fee Related GB2230920B (en) 1989-04-25 1989-04-25 Active sound and/or vibration control

Country Status (8)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8302456B2 (en) 2006-02-23 2012-11-06 Asylum Research Corporation Active damping of high speed scanning probe microscope components

Families Citing this family (5)

* 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 (en) * 1992-06-18 1994-09-16 Renault Active noise control device in the passenger compartment of a motor vehicle.
EP0609846B1 (en) * 1993-02-02 2000-03-22 Honda Giken Kogyo Kabushiki Kaisha Vibration/noise control system
US5660255A (en) * 1994-04-04 1997-08-26 Applied Power, Inc. Stiff actuator active vibration isolation system
DE19944985B4 (en) * 1999-09-20 2005-04-28 Siemens Ag Measurement method for current measurement with noise suppression

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043565A1 (en) * 1980-07-03 1982-01-13 Hitachi, Ltd. Vibration/noise reduction device for electrical apparatus
GB2122052A (en) * 1982-06-09 1984-01-04 Plessey Co Plc Reducing noise or vibration
WO1990002447A1 (en) * 1988-08-17 1990-03-08 Topexpress Limited Signal processing means for sensing a periodic signal in the presence of another interfering periodic noise

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58153313A (en) * 1982-03-08 1983-09-12 Hitachi Ltd Low noise stationary induction apparatus
GB8525800D0 (en) * 1985-10-18 1985-11-20 Contranoise Ltd Transfer function generation
JP2890196B2 (en) * 1986-10-07 1999-05-10 アダプティブ コントロール リミテッド Active vibration control device or related improvements
JPH01159406A (en) * 1987-12-15 1989-06-22 Mitsui Eng & Shipbuild Co Ltd Method for active muffling of propeller noise and device therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043565A1 (en) * 1980-07-03 1982-01-13 Hitachi, Ltd. Vibration/noise reduction device for electrical apparatus
GB2122052A (en) * 1982-06-09 1984-01-04 Plessey Co Plc Reducing noise or vibration
WO1990002447A1 (en) * 1988-08-17 1990-03-08 Topexpress Limited Signal processing means for sensing a periodic signal in the presence of another interfering periodic noise

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8302456B2 (en) 2006-02-23 2012-11-06 Asylum Research Corporation Active damping of high speed scanning probe microscope components
US8763475B2 (en) 2006-02-23 2014-07-01 Oxford Instruments Asylum Research Corporation Active damping of high speed scanning probe microscope components

Also Published As

Publication number Publication date
DE69025604T2 (en) 1996-10-24
DE69025604D1 (en) 1996-04-04
WO1990013108A1 (en) 1990-11-01
AU635266B2 (en) 1993-03-18
CA2049332A1 (en) 1990-10-26
GB2230920A (en) 1990-10-31
GB8909433D0 (en) 1989-06-14
EP0470153B1 (en) 1996-02-28
CA2049332C (en) 2000-08-01
ES2084028T3 (en) 1996-05-01
EP0470153A1 (en) 1992-02-12
JPH04505221A (en) 1992-09-10
AU5545690A (en) 1990-11-16

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20080425