FI920642A0 - Aktiivinen melunvaimennusjärjestelmä - Google Patents

Aktiivinen melunvaimennusjärjestelmä

Info

Publication number
FI920642A0
FI920642A0 FI920642A FI920642A FI920642A0 FI 920642 A0 FI920642 A0 FI 920642A0 FI 920642 A FI920642 A FI 920642A FI 920642 A FI920642 A FI 920642A FI 920642 A0 FI920642 A0 FI 920642A0
Authority
FI
Finland
Prior art keywords
noise reduction
reduction system
active noise
active
reduction
Prior art date
Application number
FI920642A
Other languages
English (en)
Swedish (sv)
Other versions
FI94564C (fi
FI920642A (fi
FI94564B (fi
Inventor
Juha Kuusama
Original Assignee
Nokia Deutschland Gmbh
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 Nokia Deutschland Gmbh filed Critical Nokia Deutschland Gmbh
Priority to FI920642A priority Critical patent/FI94564C/fi
Publication of FI920642A0 publication Critical patent/FI920642A0/fi
Priority to EP93101872A priority patent/EP0555786B1/en
Priority to DE69312520T priority patent/DE69312520T2/de
Priority to US08/014,785 priority patent/US5440641A/en
Priority to JP02577993A priority patent/JP3449493B2/ja
Publication of FI920642A publication Critical patent/FI920642A/fi
Application granted granted Critical
Publication of FI94564B publication Critical patent/FI94564B/fi
Publication of FI94564C publication Critical patent/FI94564C/fi

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
    • G10K11/1781—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
    • G10K11/17813—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 acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms
    • G10K11/17817—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 acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms between the output signals and the error signals, i.e. secondary path
    • 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
    • G10K11/1787—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
    • 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
    • G10K2210/3019—Cross-terms between multiple in's and out's
    • 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
    • G10K2210/3023—Estimation of noise, e.g. on error signals
    • G10K2210/30232—Transfer functions, e.g. impulse response
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Filters That Use Time-Delay Elements (AREA)
FI920642A 1992-02-14 1992-02-14 Aktiivinen melunvaimennusjärjestelmä FI94564C (fi)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI920642A FI94564C (fi) 1992-02-14 1992-02-14 Aktiivinen melunvaimennusjärjestelmä
EP93101872A EP0555786B1 (en) 1992-02-14 1993-02-06 Active noise cancellation system
DE69312520T DE69312520T2 (de) 1992-02-14 1993-02-06 Aktives Lärmunterdruckungsanordnung
US08/014,785 US5440641A (en) 1992-02-14 1993-02-08 Active noise cancellation system
JP02577993A JP3449493B2 (ja) 1992-02-14 1993-02-15 能動雑音消去システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI920642A FI94564C (fi) 1992-02-14 1992-02-14 Aktiivinen melunvaimennusjärjestelmä
FI920642 1992-02-14

Publications (4)

Publication Number Publication Date
FI920642A0 true FI920642A0 (fi) 1992-02-14
FI920642A FI920642A (fi) 1993-08-15
FI94564B FI94564B (fi) 1995-06-15
FI94564C FI94564C (fi) 1995-09-25

Family

ID=8534630

Family Applications (1)

Application Number Title Priority Date Filing Date
FI920642A FI94564C (fi) 1992-02-14 1992-02-14 Aktiivinen melunvaimennusjärjestelmä

Country Status (5)

Country Link
US (1) US5440641A (fi)
EP (1) EP0555786B1 (fi)
JP (1) JP3449493B2 (fi)
DE (1) DE69312520T2 (fi)
FI (1) FI94564C (fi)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5623402A (en) * 1994-02-10 1997-04-22 Schenck Pegasus Corporation Multi-channel inverse control using adaptive finite impulse response filters
JPH07243906A (ja) * 1994-03-08 1995-09-19 Bridgestone Corp 音源・振動源の寄与診断方法およびその装置
US6324290B1 (en) 1994-03-08 2001-11-27 Bridgestone Corporation Method and apparatus for diagnosing sound source and sound vibration source
JPH0844375A (ja) * 1994-07-29 1996-02-16 Matsushita Electric Ind Co Ltd 騒音消去装置及び騒音消去方法
US5633795A (en) * 1995-01-06 1997-05-27 Digisonix, Inc. Adaptive tonal control system with constrained output and adaptation
JP3751359B2 (ja) * 1996-03-21 2006-03-01 本田技研工業株式会社 振動騒音制御装置
US6115589A (en) * 1997-04-29 2000-09-05 Motorola, Inc. Speech-operated noise attenuation device (SONAD) control system method and apparatus
US6094601A (en) * 1997-10-01 2000-07-25 Digisonix, Inc. Adaptive control system with efficiently constrained adaptation
US6072880A (en) * 1998-02-27 2000-06-06 Tenneco Automotive Inc. Modular active silencer with port dish
ES2143952B1 (es) * 1998-05-20 2000-12-01 Univ Madrid Politecnica Atenuador activo de ruido acustico mediante algoritmo adaptativo genetico.
US20100234722A1 (en) 2009-03-13 2010-09-16 Milan Trcka Interactive mri system
US8553898B2 (en) * 2009-11-30 2013-10-08 Emmet Raftery Method and system for reducing acoustical reverberations in an at least partially enclosed space
US10041435B2 (en) 2014-12-16 2018-08-07 Fca Us Llc Direct injection fuel system with controlled accumulator energy storage and delivery

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8404494D0 (en) * 1984-02-21 1984-03-28 Swinbanks M A Attenuation of sound waves
US4677676A (en) * 1986-02-11 1987-06-30 Nelson Industries, Inc. Active attenuation system with on-line modeling of speaker, error path and feedback pack
US4987598A (en) * 1990-05-03 1991-01-22 Nelson Industries Active acoustic attenuation system with overall modeling
US5216721A (en) * 1991-04-25 1993-06-01 Nelson Industries, Inc. Multi-channel active acoustic attenuation system
GB9201761D0 (en) * 1992-01-28 1992-03-11 Active Noise & Vibration Tech Active cancellation

Also Published As

Publication number Publication date
US5440641A (en) 1995-08-08
DE69312520T2 (de) 1998-01-15
FI94564C (fi) 1995-09-25
FI920642A (fi) 1993-08-15
JPH05289680A (ja) 1993-11-05
FI94564B (fi) 1995-06-15
JP3449493B2 (ja) 2003-09-22
EP0555786A2 (en) 1993-08-18
DE69312520D1 (de) 1997-09-04
EP0555786A3 (en) 1994-06-08
EP0555786B1 (en) 1997-07-30

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Legal Events

Date Code Title Description
BB Publication of examined application
MA Patent expired