Graham P. Eatwell

Person

Caldecote, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Piezo speaker for improved passenger cabin audio system
- Patent number 6,215,884
- Issue date Apr 10, 2001
- Noise Cancellation Technologies, Inc.
- Michael J. Parrella
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Piezo speaker for improved passenger cabin audio systems
- Patent number 6,181,797
- Issue date Jan 30, 2001
- Noise Cancellation Technologies, Inc.
- Michael J. Parrella
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Piezo speaker for improved passenger cabin audio systems
- Patent number 5,901,231
- Issue date May 4, 1999
- Noise Cancellation Technologies, Inc.
- Michael J. Parrella
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multimedia personal computer with active noise reduction and piezo...
- Patent number 5,828,768
- Issue date Oct 27, 1998
- Noise Cancellation Technologies, Inc.
- Graham P. Eatwell
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Active vibration control system with multiple inputs
- Patent number 5,812,682
- Issue date Sep 22, 1998
- Noise Cancellation Technologies, Inc.
- Colin F. Ross
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Tracking filter for periodic signals
- Patent number 5,745,581
- Issue date Apr 28, 1998
- Noise Cancellation Technologies, Inc.
- Graham P. Eatwell
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Noise reducing system
- Patent number 5,652,799
- Issue date Jul 29, 1997
- Noise Cancellation Technologies, Inc.
- Colin Fraser Ross
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Sampled-data filter with low delay
- Patent number 5,652,770
- Issue date Jul 29, 1997
- Noise Cancellation Technologies, Inc.
- Graham P. Eatwell
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Control system for periodic disturbances
- Patent number 5,638,022
- Issue date Jun 10, 1997
- Noise Cancellation Technologies, Inc.
- Graham P. Eatwell
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Method and system for on-line system identification
- Patent number 5,553,153
- Issue date Sep 3, 1996
- Noise Cancellation Technologies, Inc.
- Graham P. Eatwell
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Audio reproduction system
- Patent number 5,481,615
- Issue date Jan 2, 1996
- Noise Cancellation Technologies, Inc.
- Graham P. Eatwell
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Adaptive feedforward and feedback control system
- Patent number 5,475,761
- Issue date Dec 12, 1995
- Noise Cancellation Technologies, Inc.
- Graham P. Eatwell
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Control system using harmonic filters
- Patent number 5,469,087
- Issue date Nov 21, 1995
- Noise Cancellation Technologies, Inc.
- Graham P. Eatwell
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Active control of machine performance
- Patent number 5,431,008
- Issue date Jul 11, 1995
- Noise Cancellation Technologies, Inc.
- Colin F. Ross
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Active control system for noise shaping
- Patent number 5,418,857
- Issue date May 23, 1995
- Noise Cancellation Technologies, Inc.
- Graham P. Eatwell
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Active sound and/or vibration control
- Patent number 5,365,594
- Issue date Nov 15, 1994
- Active Noise and Vibration Technologies, Inc.
- Colin F. Ross
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Frequency domain adaptive control system
- Patent number 5,361,303
- Issue date Nov 1, 1994
- Noise Cancellation Technologies, Inc.
- Graham P. Eatwell
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Active high transmission loss panel
- Patent number 5,315,661
- Issue date May 24, 1994
- Noise Cancellation Technologies, Inc.
- William Gossman
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Signal processing system for sensing a periodic signal in the prese...
- Patent number 5,311,446
- Issue date May 10, 1994
- Active Noise and Vibration Technologies, Inc.
- Colin F. Ross
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Active control of unsteady motion phenomena in turbomachinery
- Patent number 5,141,391
- Issue date Aug 25, 1992
- Rolls-Royce, plc
- Elizabeth Acton
- G05 - CONTROLLING REGULATING
Information Patent Grant
Active control of unsteady motion phenomena in turbomachinery
- Patent number 5,082,421
- Issue date Jan 21, 1992
- Rolls-Royce plc
- Elizabeth Acton
- G05 - CONTROLLING REGULATING
Information Patent Grant
Active control of vibration
- Patent number 5,052,529
- Issue date Oct 1, 1991
- Topexpress Limited
- Sean G. C. Sutcliffe
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Active control of unsteady motion phenomena in turbomachinery
- Patent number 5,005,353
- Issue date Apr 9, 1991
- Rolls-Royce plc
- Elizabeth Acton
- G05 - CONTROLLING REGULATING
Information Patent Grant
Active control of unsteady motion phenomena in turbomachinery
- Patent number 4,967,550
- Issue date Nov 6, 1990
- Rolls-Royce plc
- Elizabeth Acton
- G05 - CONTROLLING REGULATING

Graham P. Eatwell

Person

Patents Grantslast 30 patents

Piezo speaker for improved passenger cabin audio system

Piezo speaker for improved passenger cabin audio systems

Piezo speaker for improved passenger cabin audio systems

Multimedia personal computer with active noise reduction and piezo...

Active vibration control system with multiple inputs

Tracking filter for periodic signals

Noise reducing system

Sampled-data filter with low delay

Control system for periodic disturbances

Method and system for on-line system identification

Audio reproduction system

Adaptive feedforward and feedback control system

Control system using harmonic filters

Active control of machine performance

Active control system for noise shaping

Active sound and/or vibration control

Frequency domain adaptive control system

Active high transmission loss panel

Signal processing system for sensing a periodic signal in the prese...

Active control of unsteady motion phenomena in turbomachinery

Active control of unsteady motion phenomena in turbomachinery

Active control of vibration

Active control of unsteady motion phenomena in turbomachinery

Active control of unsteady motion phenomena in turbomachinery