DE69503659D1 - Breitbandige geräusch- und schwingungsreduzierung - Google Patents
Breitbandige geräusch- und schwingungsreduzierungInfo
- Publication number
- DE69503659D1 DE69503659D1 DE69503659T DE69503659T DE69503659D1 DE 69503659 D1 DE69503659 D1 DE 69503659D1 DE 69503659 T DE69503659 T DE 69503659T DE 69503659 T DE69503659 T DE 69503659T DE 69503659 D1 DE69503659 D1 DE 69503659D1
- Authority
- DE
- Germany
- Prior art keywords
- vibration reduction
- broadband noise
- broadband
- noise
- 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
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
- G10K11/17821—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
- G10K11/17823—Reference signals, e.g. ambient acoustic environment
-
- 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
- G10K11/1785—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
- G10K11/1785—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
- G10K11/1787—General system configurations
- G10K11/17879—General system configurations using both a reference signal and an error signal
- G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
-
- 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
-
- 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
- G10K2210/103—Three dimensional
-
- 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
- G10K2210/124—Traffic
-
- 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
- G10K2210/321—Physical
- G10K2210/3217—Collocated sensor and cancelling actuator, e.g. "virtual earth" designs
-
- 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
- G10K2210/50—Miscellaneous
- G10K2210/512—Wide band, e.g. non-recurring signals
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/347,523 US5526292A (en) | 1994-11-30 | 1994-11-30 | Broadband noise and vibration reduction |
PCT/US1995/014848 WO1996017339A1 (en) | 1994-11-30 | 1995-11-14 | Broadband noise and vibration reduction |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69503659D1 true DE69503659D1 (de) | 1998-08-27 |
DE69503659T2 DE69503659T2 (de) | 1999-02-11 |
Family
ID=23364068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69503659T Expired - Fee Related DE69503659T2 (de) | 1994-11-30 | 1995-11-14 | Breitbandige geräusch- und schwingungsreduzierung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5526292A (de) |
EP (1) | EP0795168B1 (de) |
DE (1) | DE69503659T2 (de) |
WO (1) | WO1996017339A1 (de) |
Families Citing this family (61)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3572486B2 (ja) * | 1994-03-25 | 2004-10-06 | 本田技研工業株式会社 | 振動騒音制御装置 |
US5754662A (en) * | 1994-11-30 | 1998-05-19 | Lord Corporation | Frequency-focused actuators for active vibrational energy control systems |
US6343127B1 (en) | 1995-09-25 | 2002-01-29 | Lord Corporation | Active noise control system for closed spaces such as aircraft cabin |
US5762295A (en) * | 1996-02-23 | 1998-06-09 | Lord Corporation | Dynamically optimized engine suspension system |
US5713438A (en) * | 1996-03-25 | 1998-02-03 | Lord Corporation | Method and apparatus for non-model based decentralized adaptive feedforward active vibration control |
US6002987A (en) * | 1996-03-26 | 1999-12-14 | Nikon Corporation | Methods to control the environment and exposure apparatus |
US5831401A (en) * | 1996-03-27 | 1998-11-03 | Bbn Corp | Impedance controller |
US5802184A (en) * | 1996-08-15 | 1998-09-01 | Lord Corporation | Active noise and vibration control system |
US5961067A (en) | 1996-09-10 | 1999-10-05 | Allison Engine Company | Method for reducing turboprop noise |
US5845236A (en) * | 1996-10-16 | 1998-12-01 | Lord Corporation | Hybrid active-passive noise and vibration control system for aircraft |
US5832095A (en) * | 1996-10-18 | 1998-11-03 | Carrier Corporation | Noise canceling system |
US6009985A (en) * | 1997-02-10 | 2000-01-04 | Lord Corporation | Efficient multi-directional active vibration absorber assembly |
US5957440A (en) * | 1997-04-08 | 1999-09-28 | Lord Corporation | Active fluid mounting |
US6138947A (en) * | 1997-08-22 | 2000-10-31 | Sikorsky Aircraft Corporation | Active noise control system for a defined volume |
FR2769396B1 (fr) | 1997-10-02 | 2000-11-10 | Eurocopter France | Dispositif pour reduire le bruit de raies a l'interieur d'un aeronef a voilure tournante, notamment un helicoptere |
FR2770825B1 (fr) * | 1997-11-13 | 1999-12-31 | Eurocopter France | Dispositif pour reduire les vibrations dans la cabine d'un aeronef a voilure tournante, notamment un helicoptere |
US6105900A (en) * | 1997-12-23 | 2000-08-22 | Sikorsky Aircraft Corporation | Active noise control system for a helicopter gearbox mount |
US6059274A (en) * | 1998-05-04 | 2000-05-09 | Gte Internetworking Incorporated | Vibration reduction system using impedance regulated active mounts and method for reducing vibration |
US6229898B1 (en) | 1998-12-23 | 2001-05-08 | Sikorsky Aircraft Corporation | Active vibration control system using on-line system identification with enhanced noise reduction |
US6694285B1 (en) | 1999-03-13 | 2004-02-17 | Textron System Corporation | Method and apparatus for monitoring rotating machinery |
US6546814B1 (en) | 1999-03-13 | 2003-04-15 | Textron Systems Corporation | Method and apparatus for estimating torque in rotating machinery |
US6529073B1 (en) | 1999-05-06 | 2003-03-04 | Lord Corporation | Active control system and amplifiers including damping loops and power supplies with over-voltage protection pre-regulators |
US6195442B1 (en) | 1999-08-27 | 2001-02-27 | The United States Of America As Represented By The Secretary Of The Air Force | Passive vibroacoustic attenuator for structural acoustic control |
ATE296440T1 (de) * | 1999-11-03 | 2005-06-15 | Rune Brincker | Verfahren zur schwingungsanalyse |
US6832973B1 (en) | 2000-07-21 | 2004-12-21 | William A. Welsh | System for active noise reduction |
US6634862B2 (en) | 2000-09-15 | 2003-10-21 | General Dynamics Advanced Information Systems, Inc. | Hydraulic actuator |
US6644590B2 (en) | 2000-09-15 | 2003-11-11 | General Dynamics Advanced Information Systems, Inc. | Active system and method for vibration and noise reduction |
US6467723B1 (en) | 2000-10-10 | 2002-10-22 | Lord Corporation | Active vibration control system for helicopter with improved actustor placement |
US7305094B2 (en) * | 2001-01-12 | 2007-12-04 | University Of Dayton | System and method for actively damping boom noise in a vibro-acoustic enclosure |
WO2002084418A2 (en) * | 2001-02-27 | 2002-10-24 | Sikorsky Aircraft Corporation | System for computationally efficient adaptation of active control of sound or vibration |
US6772074B2 (en) * | 2001-02-27 | 2004-08-03 | Sikorsky Aircraft Corporation | Adaptation performance improvements for active control of sound or vibration |
US7107127B2 (en) * | 2001-02-27 | 2006-09-12 | Sikorsky Aircraft Corporation | Computationally efficient means for optimal control with control constraints |
US6402089B1 (en) | 2001-03-02 | 2002-06-11 | General Dynamics Advanced Technology Services, Inc. | System for control of active system for vibration and noise reduction |
US6695294B2 (en) | 2001-07-20 | 2004-02-24 | Lord Corporation | Controlled equilibrium device with displacement dependent spring rates and integral damping |
US6807862B2 (en) * | 2002-02-21 | 2004-10-26 | Sekos, Inc. | Device and method for determining and detecting the onset of structural collapse |
AU2002244172A1 (en) * | 2002-02-27 | 2003-09-09 | Sikorsky Aircraft Corporation | Computationally efficient means for optimal control with control constraints |
GB2396512B (en) * | 2002-12-19 | 2006-08-02 | Ultra Electronics Ltd | Noise attenuation system for vehicles |
US7027953B2 (en) * | 2002-12-30 | 2006-04-11 | Rsl Electronics Ltd. | Method and system for diagnostics and prognostics of a mechanical system |
WO2004107806A1 (en) * | 2003-06-02 | 2004-12-09 | Feonic Plc | Audio system |
US6813895B2 (en) * | 2003-09-05 | 2004-11-09 | Carrier Corporation | Supercritical pressure regulation of vapor compression system by regulation of adaptive control |
US20050238179A1 (en) * | 2004-04-23 | 2005-10-27 | Wolfgang Erdmann | Active noise reduction in the proximity of a passenger seat |
EP1766261B1 (de) * | 2004-06-10 | 2012-02-08 | Lord Corporation | Verfahren und system zur steuerung von helikopterschwingungen |
WO2006135405A2 (en) | 2004-08-30 | 2006-12-21 | Lord Corporation | Helicopter vibration control system and rotary force generator for canceling vibrations |
US7722322B2 (en) * | 2004-08-30 | 2010-05-25 | Lord Corporation | Computer system and program product for controlling vibrations |
US8267652B2 (en) * | 2004-08-30 | 2012-09-18 | Lord Corporation | Helicopter hub mounted vibration control and circular force generation systems for canceling vibrations |
US8162606B2 (en) | 2004-08-30 | 2012-04-24 | Lord Corporation | Helicopter hub mounted vibration control and circular force generation systems for canceling vibrations |
FR2899011B1 (fr) * | 2006-03-24 | 2008-07-18 | Eurocopter France | Procede et dispositif de traitement du bruit a bord d'un aeronef |
EP2051543B1 (de) * | 2007-09-27 | 2011-07-27 | Harman Becker Automotive Systems GmbH | Automatische Bassregelung |
EP2209713B1 (de) | 2007-10-25 | 2013-09-25 | Lord Corporation | Verteilte aktive virbationssteuerungssysteme und drehflügler mit unterdrückten vibrationen |
EP2119627B1 (de) * | 2007-12-14 | 2017-02-08 | Panasonic Corporation | Rauschverringerungsvorrichtung |
US8262344B2 (en) * | 2008-04-02 | 2012-09-11 | Hamilton Sundstrand Corporation | Thermal management system for a gas turbine engine |
US8800736B2 (en) * | 2008-05-30 | 2014-08-12 | Design, Imaging & Control, Inc. | Adjustable tuned mass damper systems |
JP2010023534A (ja) * | 2008-07-15 | 2010-02-04 | Panasonic Corp | 騒音低減装置 |
JP2012502365A (ja) * | 2008-09-06 | 2012-01-26 | ロード コーポレーション | デジタル処理リンクを有する運動制御システム |
US9482644B2 (en) * | 2013-09-17 | 2016-11-01 | Ata Engineering, Inc. | Methods and apparatus for high-resolution continuous scan imaging using vold-kalman filtering |
US9779720B2 (en) * | 2015-04-08 | 2017-10-03 | Ford Global Technologies, Llc | Control system having active noise and vibration centralized control through digital network |
EP3288827A1 (de) | 2015-04-29 | 2018-03-07 | Bombardier Inc. | Schalldämpfer für ein flugzeug |
US11335312B2 (en) | 2016-11-08 | 2022-05-17 | Andersen Corporation | Active noise cancellation systems and methods |
CN110998712B (zh) * | 2017-08-01 | 2023-09-26 | 哈曼贝克自动系统股份有限公司 | 主动道路噪声控制 |
CN112384973A (zh) | 2018-05-04 | 2021-02-19 | 安德森公司 | 针对噪声衰减的多频带频率 |
US10942041B2 (en) * | 2018-07-27 | 2021-03-09 | Aurora Flight Sciences Corporation | Chemosensing autonomy system for a vehicle |
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US3936606A (en) * | 1971-12-07 | 1976-02-03 | Wanke Ronald L | Acoustic abatement method and apparatus |
US4044203A (en) * | 1972-11-24 | 1977-08-23 | National Research Development Corporation | Active control of sound waves |
US4111035A (en) * | 1977-11-07 | 1978-09-05 | General Motors Corporation | Engine knock signal generating apparatus with noise channel inhibiting feedback |
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 |
GB2126837B (en) * | 1982-08-19 | 1986-07-23 | British Aerospace | Noise suppression |
GB2160742B (en) * | 1984-06-21 | 1988-02-03 | Nat Res Dev | Damping for directional sound cancellation |
US4819182A (en) * | 1985-06-21 | 1989-04-04 | Westland Plc | Method and apparatus for reducing vibration of a helicopter fuselage |
US4689821A (en) * | 1985-09-23 | 1987-08-25 | Lockheed Corporation | Active noise control system |
US4715559A (en) * | 1986-05-15 | 1987-12-29 | Fuller Christopher R | Apparatus and method for global noise reduction |
US5170433A (en) * | 1986-10-07 | 1992-12-08 | Adaptive Control Limited | Active vibration control |
US4795123A (en) * | 1987-05-14 | 1989-01-03 | The United States Of America As Represented By The Secretary Of The Air Force | Wideband electromagnetic damping of vibrating structures |
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US5195046A (en) * | 1989-01-10 | 1993-03-16 | Gerardi Joseph J | Method and apparatus for structural integrity monitoring |
JPH0778680B2 (ja) * | 1989-07-24 | 1995-08-23 | 日産自動車株式会社 | 車室内騒音の低減装置 |
JP2748626B2 (ja) * | 1989-12-29 | 1998-05-13 | 日産自動車株式会社 | 能動型騒音制御装置 |
US5010576A (en) * | 1990-01-22 | 1991-04-23 | Westinghouse Electric Corp. | Active acoustic attenuation system for reducing tonal noise in rotating equipment |
US5133017A (en) * | 1990-04-09 | 1992-07-21 | Active Noise And Vibration Technologies, Inc. | Noise suppression system |
US5272286A (en) * | 1990-04-09 | 1993-12-21 | Active Noise And Vibration Technologies, Inc. | Single cavity automobile muffler |
US5229556A (en) * | 1990-04-25 | 1993-07-20 | Ford Motor Company | Internal ported band pass enclosure for sound cancellation |
US5060271A (en) * | 1990-05-04 | 1991-10-22 | Ford Motor Company | Active muffler with dynamic tuning |
JPH0834647B2 (ja) * | 1990-06-11 | 1996-03-29 | 松下電器産業株式会社 | 消音装置 |
US5251262A (en) * | 1990-06-29 | 1993-10-05 | Kabushiki Kaisha Toshiba | Adaptive active noise cancellation apparatus |
US5146505A (en) * | 1990-10-04 | 1992-09-08 | General Motors Corporation | Method for actively attenuating engine generated noise |
US5245552A (en) * | 1990-10-31 | 1993-09-14 | The Boeing Company | Method and apparatus for actively reducing multiple-source repetitive vibrations |
US5267320A (en) * | 1991-03-12 | 1993-11-30 | Ricoh Company, Ltd. | Noise controller which noise-controls movable point |
US5224168A (en) * | 1991-05-08 | 1993-06-29 | Sri International | Method and apparatus for the active reduction of compression waves |
FR2680848B1 (fr) * | 1991-08-29 | 1995-03-17 | Aerospatiale Ste Nat Indle | Procede et dispositif pour filtrer les excitations vibratoires transmises entre deux pieces, notamment entre le rotor et le fuselage d'un helicoptere. |
US5174552A (en) * | 1991-10-15 | 1992-12-29 | Lord Corporation | Fluid mount with active vibration control |
US5216722A (en) * | 1991-11-15 | 1993-06-01 | Nelson Industries, Inc. | Multi-channel active attenuation system with error signal inputs |
US5267321A (en) * | 1991-11-19 | 1993-11-30 | Edwin Langberg | Active sound absorber |
EP0778559B1 (de) * | 1992-03-12 | 2001-08-08 | Honda Giken Kogyo Kabushiki Kaisha | Schwingungs- und Geräuschregelungssystem für Kraftfahrzeuge |
US5310137A (en) * | 1992-04-16 | 1994-05-10 | United Technologies Corporation | Helicopter active noise control system |
US5278913A (en) * | 1992-07-28 | 1994-01-11 | Nelson Industries, Inc. | Active acoustic attenuation system with power limiting |
US5315661A (en) * | 1992-08-12 | 1994-05-24 | Noise Cancellation Technologies, Inc. | Active high transmission loss panel |
US5361303A (en) * | 1993-04-01 | 1994-11-01 | Noise Cancellation Technologies, Inc. | Frequency domain adaptive control system |
FR2704084B1 (fr) * | 1993-04-14 | 1995-06-23 | Matra Sep Imagerie Inf | Installation d'insonorisation active pour véhicule de transport collectif. |
US5410607A (en) * | 1993-09-24 | 1995-04-25 | Sri International | Method and apparatus for reducing noise radiated from a complex vibrating surface |
US5418858A (en) * | 1994-07-11 | 1995-05-23 | Cooper Tire & Rubber Company | Method and apparatus for intelligent active and semi-active vibration control |
-
1994
- 1994-11-30 US US08/347,523 patent/US5526292A/en not_active Expired - Fee Related
-
1995
- 1995-11-14 DE DE69503659T patent/DE69503659T2/de not_active Expired - Fee Related
- 1995-11-14 WO PCT/US1995/014848 patent/WO1996017339A1/en active IP Right Grant
- 1995-11-14 EP EP95939970A patent/EP0795168B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0795168B1 (de) | 1998-07-22 |
US5526292A (en) | 1996-06-11 |
EP0795168A1 (de) | 1997-09-17 |
DE69503659T2 (de) | 1999-02-11 |
WO1996017339A1 (en) | 1996-06-06 |
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