ES2122971T3 - Disposicion para la supresion de fenomenos repetitivos con sensores y actuadores multiples. - Google Patents
Disposicion para la supresion de fenomenos repetitivos con sensores y actuadores multiples.Info
- Publication number
- ES2122971T3 ES2122971T3 ES91904830T ES91904830T ES2122971T3 ES 2122971 T3 ES2122971 T3 ES 2122971T3 ES 91904830 T ES91904830 T ES 91904830T ES 91904830 T ES91904830 T ES 91904830T ES 2122971 T3 ES2122971 T3 ES 2122971T3
- Authority
- ES
- Spain
- Prior art keywords
- phenomena
- actuators
- fundamental frequencies
- unwanted
- cancel
- 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 - Lifetime
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
- G10K11/1785—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
- G10K11/1781—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
- G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback
-
- 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
- G10K2210/107—Combustion, e.g. burner noise control of jet engines
-
- 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
- G10K2210/128—Vehicles
- G10K2210/1282—Automobiles
-
- 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
- G10K2210/3032—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
- G10K2210/3045—Multiple acoustic inputs, single acoustic output
-
- 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
- G10K2210/3049—Random noise used, e.g. in model identification
-
- 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
-
- 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
- G10K2210/3222—Manual tuning
Landscapes
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Vehicle Body Suspensions (AREA)
- Retarders (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Fluid-Pressure Circuits (AREA)
- Pinball Game Machines (AREA)
- Power Steering Mechanism (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Feedback Control In General (AREA)
- Vibration Prevention Devices (AREA)
- Fire-Detection Mechanisms (AREA)
- Burglar Alarm Systems (AREA)
Abstract
UN DISPOSITIVO CONTROLADOR DE CANCELACION DE FENOMENOS REPETITIVOS PARA CANCELAR LOS FENOMENOS REPETITIVOS NO DESEADOS CONSTA DE FRECUENCIAS FUNDAMENTALES CONOCIDAS. SE DETERMINAN LAS FRECUENCIAS CONOCIDAS Y SE GENERA UNA SEÑAL DE FRECUENCIA ELECTRICA CONOCIDA CORRESPONDIENTE A LAS FRECUENCIAS FUNDAMENTALES CONOCIDAS DEL FENOMENO DE REPETICION NO DESEADO. SE EMPLEA UNA PLURALIDAD DE SENSORES (S1...SN) EN LOS CUALES CADA SENSOR DETECTA FENOMENOS RESIDUALES Y GENERA UNA SEÑAL ELECTRICA DE FENOMENOS RESIDUALES REPRESENTATIVA DE LOS FENOMENOS RESIDUALES. SE PROPORCIONA UNA PLURALIDAD DE ACTUADORES (A1...AN) PARA CANCELAR LAS SEÑALES DE FENOMENOS EN UNA PLURALIDAD DE LOCALIZACIONES, Y SE UTILIZA UN CONTROLADOR PARA CONTROLAR AUTOMATICAMENTE CADA UNO DE LOS ACTUADORES COMO UNA FUNCION PREDETERMINADA DE LAS FRECUENCIAS FUNDAMENTALES CONOCIDAS DE LOS FENOMENOS REPETITIVOS NO DESEADOS DE LAS SEÑALES DE FENOMENOS RESIDUALES DE LA PLURALIDAD DE SENSORES. EN ESTE DISPOSITIVO, LA PLURALIDAD DE ACTUADORES FUNCIONA PARA CANCELAR SELECTIVAMENTE ARMONICOS DISCRETOS DE LAS FRECUENCIAS FUNDAMENTALES CONOCIDAS MIENTRAS ACOMODA LAS INTERACCIONES ENTRE LOS DIFERENTES SENSORES Y ACTUADORES.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/479,466 US5091953A (en) | 1990-02-13 | 1990-02-13 | Repetitive phenomena cancellation arrangement with multiple sensors and actuators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2122971T3 true ES2122971T3 (es) | 1999-01-01 |
Family
ID=23904131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES91904830T Expired - Lifetime ES2122971T3 (es) | 1990-02-13 | 1991-02-08 | Disposicion para la supresion de fenomenos repetitivos con sensores y actuadores multiples. |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US5091953A (es) |
| EP (1) | EP0515518B1 (es) |
| JP (1) | JPH05506516A (es) |
| AT (1) | ATE170318T1 (es) |
| CA (1) | CA2074951C (es) |
| DE (1) | DE69130058T2 (es) |
| DK (1) | DK0515518T3 (es) |
| ES (1) | ES2122971T3 (es) |
| FI (1) | FI923609A0 (es) |
| HU (1) | HU216924B (es) |
| NO (1) | NO306964B1 (es) |
| WO (1) | WO1991012608A1 (es) |
Families Citing this family (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5224168A (en) * | 1991-05-08 | 1993-06-29 | Sri International | Method and apparatus for the active reduction of compression waves |
| EP0631685A4 (en) * | 1992-03-19 | 1996-01-17 | Noise Cancellation Tech | ELECTRONIC SUPPRESSION OF THE NOISE OF A DIRECT CURRENT MOTOR. |
| US5621656A (en) * | 1992-04-15 | 1997-04-15 | Noise Cancellation Technologies, Inc. | Adaptive resonator vibration control system |
| WO1993021687A1 (en) * | 1992-04-15 | 1993-10-28 | Noise Cancellation Technologies, Inc. | An improved adaptive resonator vibration control system |
| US5347586A (en) * | 1992-04-28 | 1994-09-13 | Westinghouse Electric Corporation | Adaptive system for controlling noise generated by or emanating from a primary noise source |
| WO1993026085A1 (en) * | 1992-06-05 | 1993-12-23 | Noise Cancellation Technologies | Active/passive headset with speech filter |
| WO1993025167A1 (en) * | 1992-06-05 | 1993-12-23 | Noise Cancellation Technologies, Inc. | Active selective headset |
| CA2136950C (en) * | 1992-06-05 | 1999-03-09 | David Claybaugh | Active plus selective headset |
| WO1993025879A1 (en) * | 1992-06-10 | 1993-12-23 | Noise Cancellation Technologies, Inc. | Active acoustical controlled enclosure |
| US5251863A (en) * | 1992-08-12 | 1993-10-12 | Noise Cancellation Technologies, Inc. | Active force cancellation system |
| US5315661A (en) * | 1992-08-12 | 1994-05-24 | Noise Cancellation Technologies, Inc. | Active high transmission loss panel |
| USH1445H (en) * | 1992-09-30 | 1995-06-06 | Culbreath William G | Method and apparatus for active cancellation of noise in a liquid-filled pipe using an adaptive filter |
| CA2145862C (en) * | 1992-10-08 | 1999-03-09 | Christopher R. Fuller | Active acoustic transmission loss box |
| US5692053A (en) * | 1992-10-08 | 1997-11-25 | Noise Cancellation Technologies, Inc. | Active acoustic transmission loss box |
| US5692054A (en) * | 1992-10-08 | 1997-11-25 | Noise Cancellation Technologies, Inc. | Multiple source self noise cancellation |
| WO1994009483A1 (en) * | 1992-10-08 | 1994-04-28 | Noise Cancellation Technologies, Inc. | Multiple source self noise cancellation |
| US5355417A (en) * | 1992-10-21 | 1994-10-11 | The Center For Innovative Technology | Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors |
| GB2271909B (en) * | 1992-10-21 | 1996-05-22 | Lotus Car | Adaptive control system |
| JP2887354B2 (ja) * | 1993-02-09 | 1999-04-26 | ノイズ キャンセレーション テクノロジーズ インコーポレーテッド | 超無騒音真空掃除機 |
| US5502869A (en) * | 1993-02-09 | 1996-04-02 | Noise Cancellation Technologies, Inc. | High volume, high performance, ultra quiet vacuum cleaner |
| US5361303A (en) * | 1993-04-01 | 1994-11-01 | Noise Cancellation Technologies, Inc. | Frequency domain adaptive control system |
| US5416845A (en) * | 1993-04-27 | 1995-05-16 | Noise Cancellation Technologies, Inc. | Single and multiple channel block adaptive methods and apparatus for active sound and vibration control |
| US5473214A (en) * | 1993-05-07 | 1995-12-05 | Noise Cancellation Technologies, Inc. | Low voltage bender piezo-actuators |
| US5414775A (en) * | 1993-05-26 | 1995-05-09 | Noise Cancellation Technologies, Inc. | Noise attenuation system for vibratory feeder bowl |
| US5812682A (en) * | 1993-06-11 | 1998-09-22 | Noise Cancellation Technologies, Inc. | Active vibration control system with multiple inputs |
| EP0713378A4 (en) * | 1993-08-12 | 1997-12-17 | Noise Cancellation Tech | ACTIVE FOAM FOR NOISE AND VIBRATION DAMPING |
| US5519637A (en) * | 1993-08-20 | 1996-05-21 | Mcdonnell Douglas Corporation | Wavenumber-adaptive control of sound radiation from structures using a `virtual` microphone array method |
| JP3031635B2 (ja) * | 1993-09-09 | 2000-04-10 | ノイズ キャンセレーション テクノロジーズ インコーポレーテッド | 静止誘導器用広域消音装置 |
| US5418857A (en) * | 1993-09-28 | 1995-05-23 | Noise Cancellation Technologies, Inc. | Active control system for noise shaping |
| US5815582A (en) * | 1994-12-02 | 1998-09-29 | Noise Cancellation Technologies, Inc. | Active plus selective headset |
| JPH11509008A (ja) * | 1995-07-05 | 1999-08-03 | アルマックス インコーポレイテッド | ダクトのハイオーダーモードのアクティブノイズ制御方法及び装置 |
| US5953428A (en) * | 1996-04-30 | 1999-09-14 | Lucent Technologies Inc. | Feedback method of noise control having multiple inputs and outputs |
| US6031917A (en) * | 1997-06-06 | 2000-02-29 | Mcdonnell Douglas Corporation | Active noise control using blocked mode approach |
| US6594365B1 (en) * | 1998-11-18 | 2003-07-15 | Tenneco Automotive Operating Company Inc. | Acoustic system identification using acoustic masking |
| FR2805433A1 (fr) * | 2000-02-17 | 2001-08-24 | France Telecom | Procede et dispositif de comparaison de signaux pour le controle de transducteurs et systeme de controle de transducteurs |
| JP4077383B2 (ja) * | 2003-09-10 | 2008-04-16 | 松下電器産業株式会社 | 能動型振動騒音制御装置 |
| DE102008038751B3 (de) * | 2008-08-12 | 2010-04-15 | Fresenius Medical Care Deutschland Gmbh | Umkehrosmoseanlage mit einer Vorrichtung zur Geräuschminderung sowie Verfahren zur Geräuschminderung einer Umkehrosmoseanlage |
| WO2011039674A2 (en) * | 2009-09-29 | 2011-04-07 | Koninklijke Philips Electronics N.V. | Noise reduction for an acoustic cooling system |
| JP5773761B2 (ja) * | 2010-12-17 | 2015-09-02 | キヤノン株式会社 | リソグラフィーシステム、及びそれを用いた物品の製造方法 |
| EP2787502B1 (en) * | 2013-04-05 | 2021-03-10 | BlackBerry Limited | Active noise equalization |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2122052B (en) * | 1982-06-09 | 1986-01-29 | Plessey Co Plc | Reducing noise or vibration |
| GB8610744D0 (en) * | 1986-05-01 | 1986-06-04 | Plessey Co Plc | Adaptive disturbance suppression |
| DE3786165T2 (de) * | 1986-10-07 | 1993-10-14 | Adaptive Control Ltd | 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 |
| US4878188A (en) * | 1988-08-30 | 1989-10-31 | Noise Cancellation Tech | Selective active cancellation system for repetitive phenomena |
-
1990
- 1990-02-13 US US07/479,466 patent/US5091953A/en not_active Expired - Lifetime
-
1991
- 1991-02-08 DK DK91904830T patent/DK0515518T3/da active
- 1991-02-08 CA CA002074951A patent/CA2074951C/en not_active Expired - Fee Related
- 1991-02-08 ES ES91904830T patent/ES2122971T3/es not_active Expired - Lifetime
- 1991-02-08 AT AT91904830T patent/ATE170318T1/de not_active IP Right Cessation
- 1991-02-08 EP EP91904830A patent/EP0515518B1/en not_active Expired - Lifetime
- 1991-02-08 DE DE69130058T patent/DE69130058T2/de not_active Expired - Fee Related
- 1991-02-08 JP JP91505555A patent/JPH05506516A/ja active Pending
- 1991-02-08 WO PCT/US1991/000756 patent/WO1991012608A1/en not_active Ceased
- 1991-02-08 HU HU9202624A patent/HU216924B/hu not_active IP Right Cessation
-
1992
- 1992-08-12 FI FI923609A patent/FI923609A0/fi unknown
- 1992-08-12 NO NO923144A patent/NO306964B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FI923609A7 (fi) | 1992-08-12 |
| NO306964B1 (no) | 2000-01-17 |
| JPH05506516A (ja) | 1993-09-22 |
| WO1991012608A1 (en) | 1991-08-22 |
| EP0515518A1 (en) | 1992-12-02 |
| CA2074951A1 (en) | 1991-08-14 |
| NO923144D0 (no) | 1992-08-12 |
| DE69130058D1 (de) | 1998-10-01 |
| HUT61849A (en) | 1993-03-01 |
| NO923144L (no) | 1992-08-12 |
| HU216924B (hu) | 1999-10-28 |
| FI923609A0 (fi) | 1992-08-12 |
| EP0515518B1 (en) | 1998-08-26 |
| EP0515518A4 (en) | 1993-06-30 |
| DK0515518T3 (da) | 1999-05-25 |
| US5091953A (en) | 1992-02-25 |
| CA2074951C (en) | 2000-10-24 |
| DE69130058T2 (de) | 1999-04-08 |
| ATE170318T1 (de) | 1998-09-15 |
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