Robert D Curby, 8712518 Green Darner, San Antonio, TX 78253
Robert Curby Phones & Addresses
12518 Green Darner, San Antonio, TX 78253 210-2818478
Mesa, AZ
Scottsdale, AZ
1534 Moorpark Rd, Thousand Oaks, CA 91360
Charlotte, NC
Simi Valley, CA
Mentions for Robert D Curby
Publications & IP owners
Us Patents
Comparator Digital Noise Filter
US Patent:
6337649, Jan 8, 2002
Filed:
Mar 28, 2000
Appl. No.:
09/536565
Inventors:
Jeff Becker - Goleta CA
Robert Curby - Thousand Oaks CA
Tim Richmond - Woodland Hills CA
George H. McCammon - Moorpark CA
Robert Curby - Thousand Oaks CA
Tim Richmond - Woodland Hills CA
George H. McCammon - Moorpark CA
Assignee:
Litton Systems, Inc. - Woodland Hills CA
International Classification:
H03K 51536
US Classification:
341155, 327 34, 327 37
Abstract:
Spurious pulses are eliminated in the output of a comparator performing analog to digital conversion by addition of logic which eliminates pulses having a width less than a selected width from the output of the comparator.
Projectile Guidance With Accelerometers And A Gps Receiver
US Patent:
6573486, Jun 3, 2003
Filed:
Feb 22, 2002
Appl. No.:
10/080760
Inventors:
Joseph A. Ratkovic - Los Angeles CA
Samuel N. Fersht - Studio City CA
Robert D. Curby - Thousand Oaks CA
Allan J. Brockstein - Chatsworth CA
David Y. Hsu - Agoura Hills CA
Samuel N. Fersht - Studio City CA
Robert D. Curby - Thousand Oaks CA
Allan J. Brockstein - Chatsworth CA
David Y. Hsu - Agoura Hills CA
Assignee:
Northrop Grumman Corporation - Woodland Hills CA
International Classification:
F41G 700
US Classification:
244 32, 244 315, 701207, 701213, 701214, 701216, 34235701, 34235706
Abstract:
A projectile guidance system without gyros in which the projectile has an orthogonal body coordinate system. The projectile has a triax of accelerometers providing x, y and z acceleration data measured along the x, y and z axes respectively. A GPS antenna and receiver means provides onboard GPS position and velocity data in earth referenced navigational coordinates. A computer and program means stores and accesses time indexed GPS position and GPS velocity data and transforms x, y and z axis acceleration data from body to navigation coordinates. The program means is responsive to corresponding time indexed acceleration data and to GPS velocity and position data for calculating and outputing an estimated projectile roll, pitch and yaw angle via optimal smoothing techniques with respect to local level for each time index iteration of present position to a flight control system for guiding the projectile to a predetermined location.
Dither Controller For Ring Laser Angular Rotation Sensor
US Patent:
4597667, Jul 1, 1986
Filed:
Dec 9, 1982
Appl. No.:
6/448363
Inventors:
Robert D. Curby - Thousand Oaks CA
George H. McCammon - Simi Valley CA
George H. McCammon - Simi Valley CA
Assignee:
Litton Systems, Inc. - Beverly Hills CA
International Classification:
G01C 1964
US Classification:
356350
Abstract:
Apparatus and method for dithering ring laser angular rotation sensors, including a plurality of such sensors with substantially identical natural dither frequencies and having different sensor axes mounted upon a resilient structure; applying energy to dither such sensors; the energy being connected and disconnected from the dithering of each sensor in response to the amplitude of dither of that particular sensor to minimize lock-in; and frequency or phase modulating the energy applied to dithering to avoid continued uni-directional coning effects.
Path Length Control Method For Ring Laser Gyroscope
US Patent:
4755057, Jul 5, 1988
Filed:
Sep 5, 1986
Appl. No.:
6/904170
Inventors:
Robert D. Curby - Thousand Oaks CA
Rodney W. Benoist - Moor Park CA
Masao Yashimoto - Woodland Hills CA
Rodney W. Benoist - Moor Park CA
Masao Yashimoto - Woodland Hills CA
Assignee:
Litton Systems, Inc. - Beverly Hills CA
International Classification:
G01C 1964
US Classification:
356350
Abstract:
The present invention provides for initializing the particular intensity peak selected to operate about, based upon the initial temperature of the gyroscope in order to maintain a selected integer number of wavelengths as the initial cavity path length from start up to start up. In addition, the present invention provides an optimum available movement of the mirrors due to changing the voltage over the available voltage swing for the anticipated range and direction of temperature changes from the start up temperature, over which the gyroscope is expected to operate.
Pathlength Controller For Ring Laser Gyroscope
US Patent:
4740083, Apr 26, 1988
Filed:
Oct 2, 1984
Appl. No.:
6/656944
Inventors:
Robert D. Curby - Thousand Oaks CA
Rodney W. Benoist - Moor Park CA
Masao Yashimoto - Woodland Hills CA
Rodney W. Benoist - Moor Park CA
Masao Yashimoto - Woodland Hills CA
Assignee:
Litton Systems, Inc. - Beverly Hills CA
International Classification:
G01C 1964
US Classification:
356350
Abstract:
The present invention provides for initializing the particular intensity peak selected to operate about, based upon the initial temperature of the gyroscope in order to maintain a selected integer number of wavelengths as the initial cavity path length from start up to start up. In addition, the present invention provides an optimum available movement of the mirrors due to changing the voltage over the available voltage swing for the anticipated range and direction of temperature changes from the start up temperature, over which the gyroscope is expected to operate.
Dither Controller For Ring Laser Angular Rotation Sensor
US Patent:
4740084, Apr 26, 1988
Filed:
Mar 21, 1986
Appl. No.:
6/842538
Inventors:
Robert D. Curby - Thousand Oaks CA
George H. McCammon - Simi Valley CA
George H. McCammon - Simi Valley CA
Assignee:
Litton Systems, Inc. - Beverly Hills CA
International Classification:
G01C 1964
US Classification:
356350
Abstract:
Apparatus and method for dithering ring laser angular rotation sensors, including a plurality of such sensors with substantially identical natural dither frequencies and having different sensor axes mounted upon a resilient structure; applying energy to dither such sensors; the energy being connected and disconnected from the dithering of each sensor in response to the amplitude of dither of that particular sensor to minimize lock-in; and frequency or phase modulating the energy applied to dithering to avoid continued uni-directional coning effects.
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