FI920642A0 - Aktiivinen melunvaimennusjärjestelmä - Google Patents
Aktiivinen melunvaimennusjärjestelmäInfo
- 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
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)
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)
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)
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 |
-
1992
- 1992-02-14 FI FI920642A patent/FI94564C/fi not_active IP Right Cessation
-
1993
- 1993-02-06 DE DE69312520T patent/DE69312520T2/de not_active Expired - Lifetime
- 1993-02-06 EP EP93101872A patent/EP0555786B1/en not_active Expired - Lifetime
- 1993-02-08 US US08/014,785 patent/US5440641A/en not_active Expired - Lifetime
- 1993-02-15 JP JP02577993A patent/JP3449493B2/ja not_active Expired - Lifetime
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 |