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| Number | Title | Issue Date |
| 8242423 | Missile navigation method A missile has a pair of systems to provide acceleration information during flight. The primary system is a microelectromechanical systems (MEMS) inertial measurement unit (IMU) that provides accurate rate sensor output, such as providing pitch and yaw rates, at low ... | 08/14/2012 |
| 8212195 | Projectile with inertial measurement unit failure detection A guided projectile may include a projectile body. An inertial measurement unit may be disposed within the projectile body, the inertial measurement unit including sensors to measure motion parameters relative to first, second, and third mutually orthogonal axes. Ea... | 07/03/2012 |
| 7409292 | Method and system for degimbalization of vehicle navigation data A method and system for degimbalization of sensor outputs is provided. Data output from an embedded GPS inertial navigation system (EGI), which is mounted within a gimbaled system on a vehicle, is processed to provide degimballed navigation data. Generally, motion o... | 08/05/2008 |
| 7341221 | Attitude determination with magnetometers for gun-launched munitions A system and method for performing attitude determination for projectiles comprises a projectile; a plurality of magnetometers arranged orthogonally to one another in the projectile, wherein the plurality of magnetometers are adapted to take first flight vector meas... | 03/11/2008 |
| 7337668 | Accelerometer in closed loop with error detection An accelerometric measurement device with a return loop including accelerometer, a corrector generating a signal for correction of the position of the accelerometer, a closed return loop to apply this correction signal to the accelerometer, a detector to detect an e... | 03/04/2008 |
| 7328104 | Systems and methods for improved inertial navigation A method for producing inertial measurement data is provided. The method comprises receiving raw inertial measurement data from one or more inertial sensors; receiving raw position data based on signals from a global navigation satellite system; processing the raw i... | 02/05/2008 |
| 7305286 | System and method for gyro enhanced vertical flight information A flight instrument and associated method where vertical speed information is combined with gyro information to produce gyro enhanced vertical speed information that is displayed to a pilot. The gyro information may include a pitch rate gyro and may include an azimu... | 12/04/2007 |
| 7286911 | Aircraft pilot assistance system and method A system and method for assisting a pilot to recover the aircraft from a variety of dangerous situations involving one or more of the following: altitude, airspeed, attitude, roll rate, and a partial equipment failure in the control panel. In accordance with the inv... | 10/23/2007 |
| 7257512 | Methods and systems for vibropendulous error compensation of acceleration sensors A method for reducing effects of vibropendulous errors within a sensor device having three orthogonal sensors is described. The method includes calculating compensation terms for each sensor, the compensation terms associated with an angle between a pendulous axis f... | 08/14/2007 |
| 7246775 | System and method of substantially autonomous geosynchronous time-optimal orbit transfer Method of and system for on-board substantially autonomous control for transferring a spacecraft from an initial orbit to a final geosynchronous orbit, by a trajectory that minimizes remaining transfer time and orbit transfer fuel. The spacecraft determines its orbi... | 07/24/2007 |
| 7248967 | Autonomous velocity estimation and navigation Measurement of a spatial velocity vector in order to make determination of a geographical position possible. A spatial velocity meter includes an inertial measurement unit, a direction-sensing module and a velocity processor. The inertial measurement unit registers ... | 07/24/2007 |
| 7241103 | Method and system for adjusting a position of an object According to one embodiment of the present invention, a method for adjusting a position of an object to compensate for tilt includes providing a rotatable base supporting an object and directing the object relative to the base such that the position of the object is... | 07/10/2007 |
| 7239975 | Method and system for automatic stabilization and pointing control of a device The present invention provides a method and system for an innovative design of the automatic stabilization and pointing control of a device based on the MEMS technology, which is small enough and has acceptable accuracy to be integrated into many application systems... | 07/03/2007 |
| 7228739 | Precision flexure plate A precision flexure plate includes a flat disk positioned between two capacitor plates and supported by S-shaped beams. Deflection of the disk due to gravitational loads and resulting capacitance change is used to measure the accelerations in the direction perpendic... | 06/12/2007 |
| 7207517 | Munition with integrity gated go/no-go decision A munition is presented which includes an integrity verification system that measures the integrity of the munition. When an integrity threshold is not met, engagement of the munition with a predetermined target is aborted. Also presented is a methodology for gating... | 04/24/2007 |
| 7180446 | Continuous integration based satellite navigational signal acquisition A method and device to acquire navigational satellite signals combines non-coherent and coherent integrations and can efficiently acquire both strong and weak signals. Successive steps eliminate lower powered and less likely combinations of code offsets and carrier ... | 02/20/2007 |
| 7164989 | Warhead fuzing system A fuzing system and method for arming a fuzing system of a projectile using global positioning system (GPS) information from a GPS satellite system. The system determines when two independent verifications have been met before arming the system. The first verificati... | 01/16/2007 |
| 7124634 | Single plate capacitive acceleration derivative detector A capacitance accelerometer includes a housing, and a plate fixed within the housing. A moveable plate is disposed in substantially parallel relation to the fixed plate and is coupled to the housing along at least an edge. The moveable plate and the fixed plate defi... | 10/24/2006 |
| 7105790 | Process to control the trajectory of a spinning projectile A process to control the trajectory of a spinning projectile. The projectile's accelerations are measured by means of an inertial unit in three axes within a reference linked to the projectile so as to prepare the piloting commands for the projectile's trajectory. T... | 09/12/2006 |
| 7080804 | Hot-start navigation information distribution system A weapons system is disclosed that provides hot-start navigational information to the Global-Positioning-System receivers on missiles prior to flight. The system comprises a Global-Positioning-System receiver that uses a classified red cryptographic key to decode th... | 07/25/2006 |
| 7076342 | Attitude sensing apparatus for determining the attitude of a mobile unit An attitude sensing apparatus for determining the attitude of a mobile unit is provided that can reliably estimate an alignment angle between a GPS antenna coordinate system and an IMU coordinate system with good accuracy regardless of the magnitude of the alignment... | 07/11/2006 |
| 7043343 | Method for testing a missile time-space-position unit for missile A method for testing the performance of a Missile Time-Space-Position Information Unit. The method is utilized for Functional, Acceptance and Qualification test of the Missile Time-Space-Position Information Unit. The method has the capability of testing the Missile... | 05/09/2006 |
| 6955539 | Characterization of motion of dual motor oral hygiene device An oral hygiene device is disclosed having at least two motors to simultaneously vibrate and impart motion upon the head portion of the oral hygiene device, most beneficially at the tip. A first motor is positioned in the handle portion of the device to impart a fir... | 10/18/2005 |
| 6948367 | Dual bridge angular and linear accelerometer An accelerometer includes an inertial platform maintaining an attitude in response to a platform stabilizing controller signal and defining a spin axis and a reference plane. An accelerometer, coupled to the inertial platform a distance from the spin axis, defines a... | 09/27/2005 |
| 6933965 | Panoramic aerial imaging device An imaging device that gives a ground based user immediate access to a detailed aerial photograph of the entire area for a given radius about his present position. The device can be launched into the air, and rotates in a predictable pattern to scan an imager over e... | 08/23/2005 |
| 6928876 | Dual flexure plate angular accelerometer A dual capacitance accelerometer system includes two flexure plates coupled to the housing and defining a respective parallel flex axes. A fixed plate is adjacent to and in substantially parallel relation to the two flexure plates and is also coupled to the housing.... | 08/16/2005 |
| 6895817 | Dual bridge angular accelerometer An accelerometer includes an inertial platform maintaining an attitude in response to a platform stabilizing controller signal and defining a spin axis and a reference plane. An accelerometer, coupled to the inertial platform a distance from the spin axis, defines a... | 05/24/2005 |
| 6725173 | Digital signal processing method and system thereof for precision orientation measurements The present invention provides a digital signal processing method and system thereof for producing precision platform orientation measurements and local Earth's magnetic measurements by measuring threes axes gravity acceleration digital signals by an acceleration pr... | 04/20/2004 |
| 6714866 | Methods and apparatus for installation alignment of equipment A method for installation alignment of an inertial reference unit (IRU) with vehicle axes when the IRU is installed within the vehicle is provided. The vehicle axes include roll, pitch, and yaw axes. The method includes recording vehicle angular position data includ... | 03/30/2004 |
| 6679457 | Reaction wheel system with vernier control rotor A reaction wheel system is provided that includes at least two rotors. The first rotor is the primary rotor that provides the large output torques to the vehicle. The second rotor is a vernier control rotor. The primary rotor and vernier control rotor eac... | 01/20/2004 |
| 6666410 | Load relief system for a launch vehicle A load relief system for a launch vehicle including a wind sensing system responsive to wind speed and direction at selected locations for providing an output of sensed wind speed and wind direction at the selected locations, a plant model responsive to t... | 12/23/2003 |
| 6654685 | Apparatus and method for navigation of an aircraft In accordance with this invention, an apparatus and method for aircraft navigation are provided that utilize a blended architecture consisting of a global positioning system (GPS) and micro-electromechanical sensors (MEMS) for the primary navigation syste... | 11/25/2003 |
| 6621059 | Weapon systems A weapon system comprising a mobile platform (1) e.g. an aircraft incorporating a first three-axis attitude reference sub-system (13), and a guidable vehicle (3) launchable from the platform (1) and incorporating a guidance sub-system (15) incorporating g... | 09/16/2003 |
| 6596976 | Method and system for pointing and stabilizing a device A method and system for pointing and stabilizing a device that needs to be pointed and stabilized with a desired direction, are disclosed, wherein current attitude measurement and attitude rate measurement of the device measured by an attitude producer, w... | 07/22/2003 |
| 6573486 | Projectile guidance with accelerometers and a GPS receiver 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... | 06/03/2003 |
| 6496779 | Inertial measurement unit with magnetometer for detecting stationarity A device for measuring a velocity and/or position of a body includes a magnetometer and a measurement unit. The magnetometer is configured to sense a magnetic flux to which the body is exposed. The measurement unit includes a sensor sensing one of an acce... | 12/17/2002 |
| 6380526 | Employing booster trajectory in a payload inertial measurement unit A payload launching method measures the attitude of a booster during a launch with an inertial measurement unit on the payload to compare the actual booster trajectory with a desired trajectory to control the payload at the deployment location, the inerti... | 04/30/2002 |
| 6349652 | Aeroballistic diagnostic system A system which is packaged within a projectile fuze body and obtains data relative to the projectile during a launch. Sensors are provided which obtain in-bore data as well as in-flight data. The in-bore data is recorded at a fast rate during in-bore trav... | 02/26/2002 |
| 6317688 | Method and apparatus for achieving sole means navigation from global navigation satelite systems A sole means global navigation apparatus adapted for use on an aircraft includes a GPS receiver to provide GPS measurement data and an inertial sensor system adapted to provide inertial translational and rotational data which during time periods is indepe... | 11/13/2001 |
| 6314886 | Projectile to be fired from a weapon barrel and stabilized by a guide assembly A projectile to be fired from a weapon barrel includes a projectile body and a plurality of stabilizing wings circumferentially distributed about a rearward portion of the projectile body. A pin pivotally attaches each stabilizing wing to the projectile b... | 11/13/2001 |
