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| Number | Title | Issue Date |
| 7443257 | Mechanical oscillator control electronics A control system for a mechanical oscillator having a sinusoidal drive signal with a frequency that is a fractional multiple of a frequency of a signal of the mechanical oscillator. The drive signal may be in phase and in registration with the signal from the mechan... | 10/28/2008 |
| 7383747 | Apparatus and method for gyroscopic propulsion The present invention is a combination of three interconnected gyroscopic ring-like rotating masses, with each of the three ring-like masses being configured to rotate in various planes, depending on the desired orientation. Regardless of the orientation of the thre... | 06/10/2008 |
| 7278312 | Method for electronic tuning of the read oscillation frequency of a coriolis gyro In a method for electronic tuning of the frequency of the read oscillation to the frequency of the stimulation oscillation in a Coriolis gyro the resonator of the Coriolis gyro has a disturbance force applied to it such that the stimulation oscillation remains essen... | 10/09/2007 |
| 7274439 | Precise, no-contact, position sensing using imaging A contact free optical motion sensor for an inertial reference system. One or more image acquisition systems are adapted to produce a series of overlapping images of a gas bearing supported spherical inertial sensor assembly. A controller coupled to receive the seri... | 09/25/2007 |
| 7225524 | Method for fabricating a gyroscope Method for fabricating a gyroscope including: fabricating a SMS wafer where a first wafer, a metal film, and a second wafer are sequentially stacked; forming a cantilever or a bridge shaped-structure on the relevant portion of the first wafer through the photolithog... | 06/05/2007 |
| 7181987 | Precessional device and method A precessional device having independent control of the output torque generated by the device and the oscillation race of the device is disclosed. The device comprises a rotor supported by an axle wherein the ends of the axle are supported by a circular race. The ci... | 02/27/2007 |
| 7159479 | Active damper for stabilized mirrors An active damping method for a stabilized mirror, and a corresponding active damper apparatus, comprising providing a tachometer measuring speed of a motor driving the mirror, employing compensation electronics receiving input from said tachometer and the motor, and... | 01/09/2007 |
| 7152495 | System and method for adaptive cancellation of disturbances A disturbance-cancellation system and method is provided that facilitates the adaptive cancellation of periodic disturbances. The disturbance-cancellation system and method includes a pair of control moment gyroscopes (CMGs) arranged together as a scissored pair. Th... | 12/26/2006 |
| 7124656 | Gimbal mechanism Provided is a gimbal mechanism comprising a support stand, an outer frame and an inner frame. The support stand includes a spaced pair of L-shaped legs comprising a first member having at least one first slot formed therethrough. The outer frame is nested within the... | 10/24/2006 |
| 7121159 | Apparatus and method for gyroscopic propulsion The present invention is a combination of three interconnected gyroscopic ring-like rotating masses, with each of the three ring-like masses being configured to rotate in various planes, depending on the desired orientation. Regardless of the orientation of the thre... | 10/17/2006 |
| 7051608 | Gyroscopic actuator The gyroscopic actuator is a new device based on a mechanism designed to make us of the conservation of the kinetic momentum, so that it supplies a torque (momentum) to the platform where it is located. Thus it can orientate this platform in pitching, rolling or yaw... | 05/30/2006 |
| 7014150 | Method and system for optimizing torque in a CMG array A momentum-control system for a spacecraft is disclosed. The momentum-control system comprises an attitude-control system. The attitude-control system receives data concerning a desired spacecraft maneuver and determines a torque command to complete the desired spac... | 03/21/2006 |
| 7009321 | Compact two-axis wide gap torquer motor A novel design concept for a torquer motor is useful for stabilizing apparatuses in a vibrating structure. According to one aspect, a novel design for a coil pair is provided. A first coil in the pair is box shaped with a hollow interior portion and windings provide... | 03/07/2006 |
| 6982538 | Methods and apparatus for generating a sinusoidal motor drive signal for a MEMS gyroscope An apparatus is described which reduces a time delay and a resultant phase shift in a gyroscope motor drive signal. The motor drive signal originates from a numerically controlled oscillator whose output is sampled at a predetermined rate. The apparatus includes a f... | 01/03/2006 |
| 6946812 | Method and apparatus for providing force feedback using multiple grounded actuators An apparatus and method for interfacing the motion of a user-manipulable object with a computer system includes a user object physically contacted or grasped by a user. A 3-D spatial mechanism is coupled to the user object, such as a stylus or a medical instrument, ... | 09/20/2005 |
| 6907800 | Shaftless gyrostabilizer for aerial platforms Gyrostabilizer methods and apparatus having simultaneously counter-revolving masses that do not require physical shafts or axles. The stabilizer can have dual counter-revolving concentric rings, or tracks filled with weights such as spherical balls, that are propell... | 06/21/2005 |
| 6789437 | Apparatus for precision slewing of flatform-mounted devices An apparatus and a method for controlling the path of oscillatory travel of a device within a two-axis system. A device, such as a camera, is held in a two axis gimbal system having motors for driving the azimuth and pitch axes. A two degree-of-freedom gyroscope is ... | 09/14/2004 |
| 6742381 | Apparatus and method for evaluating damping performance of vibration-damping devices A damping performance evaluation apparatus for damping devices including: a support member detachably supporting a damping device in a state enabling the device to exhibit a damping effect thereof; a hammer member for applying oscillation force to the device caused ... | 06/01/2004 |
| 6354163 | Mitigating gimbal induced disturbances in CMG arrays In a CMG array used to change the attitude of a satellite, noise in the motion of the inner gimbal as it is moved is detected and the speed of the CMG rotors is changed to reduce the noise.... | 03/12/2002 |
| 5875676 | Non colocated rate sensing for control moment gyroscopes A feedback system for use in controlling control moment gyroscopes that are used in positioning a spacecraft where the relative rate of rotation is determined from the difference between the rotation rate of the gimbals of the CMGs and the rotation rate o... | 03/02/1999 |
| 5699256 | Offset-drift correcting device for gyro-sensor An offset-drift correcting device is designed for a gyro-sensor mounted on an object and outputting a signal representing an angular speed of the object. The device includes a first section for detecting whether or not the object is rotating. A second sec... | 12/16/1997 |
| 5437420 | High torque double gimbal control moment gyro A system and related method is provided for rapidly repointing spacecraft through the application of a high torque, of a gyroscope in which braking means (20, 22) provided on a gimbal (16, 18) is actuated simultaneously with the actuation of the torque mo... | 08/01/1995 |
| 5138883 | Analog torque rebalance loop for a tuned rotor gyroscope A rebalance loop for controlling a dry tuned rotor gyroscope having a rotor moveable about two orthogonal axes, a first pickoff associated with one of the axes for producing an electrical error signal when a rate is applied to one of the axes, a second pi... | 08/18/1992 |
| 4986139 | Gyroscope control systems A gyroscope system includes a gyroscope (1), angle pick-offs (5) and a control circuit (6,7). The angle pick-offs (5) sense the tilt of the gyroscope's rotor and generate a signal which is received by the control circuit (6,7). The control circuit generat... | 01/22/1991 |
| 4803413 | Magnetic isolating and pointing gimbal apparatus A magnetic isolation and pointing gimbal apparatus provides support functions and multidegree of freedom pointing capability and simultaneous six degree of freedom bi-directional disturbance isolation. This is accomplished by integrating the support, isol... | 02/07/1989 |
| 4751444 | DC motor system with AC auxiliary system A direct current (DC) powered gyroscope (41) utilizes an alternating current (AC) subsystem in which electrolytic switches (49, 50) control torquer motors (45, 46). The alternating current is obtained from commutation circuitry (21-23) in the gyroscope sp... | 06/14/1988 |
| 4553439 | Apparatus for demodulating gyroscope position information A synchronous demodulator is configured so as to extract gyroscope position nformation in a polar coordinate format and then resolve it into position information in a more useful cartesian coordinate format. The technique involves integration of a gyroscop... | 11/19/1985 |
| 4491029 | Position gyroscope The present positional gyroscope is used for stabilizing and steering a fng body, especially a secondary flying body ejected from a primary or carrier flying body which is rotating or rolling about its longitudinal or roll axis. Such gyroscopes are suppo... | 01/01/1985 |
| 4466299 | Gyro bearing assembly A gyro assembly including a rotor, stator, hysteresis motor and conical hydrodynamic bearings for supporting the rotor relative to the stator.... | 08/21/1984 |
| 4441375 | Gyroscopic instrument The present invention is directed to a gyroscopic instrument comprising concentric containers, the inner container enclosing a rotating electric gyro rotor, magnetic fluid enclosed between the inner and outer concentric containers, and magnetic flux produ... | 04/10/1984 |
| 4285248 | Two-degree-of-freedom gyroscope A two-degree-of-freedom gyroscope wherein a rotor is attached to and axially restrained by a taut wire fixed within the rotor drive shaft. Lateral or radial restraint for the rotor is provided by magnetic repulsion.... | 08/25/1981 |
| 4277039 | Method and system for inducing and controlling nutation of a gyroscope A method and system for inducing and controlling nutation of a gyroscope momentum wheel (or member) so that such controlled nutation can be used for purposes such as target searching, acquisition and tracking, particularly in a guided missile system. A nu... | 07/07/1981 |
| 4275605 | Acceleration sensitive gyroscope stabilized platform An inertial measuring unit which precesses about the direction of apparent acceleration as a consequence of the introduction of a mass unbalance to each of the gyroscopes in the inertial measuring unit. The mass unbalances and the rotational moments of in... | 06/30/1981 |
| 4274291 | Gyro wheel speed compensation A device for compensating for gyro wheel frequency inaccuracies wherein a reference oscillator feeds a square wave signal to a first and second counter. The second counter also has an input of plus or minus the spin axis angular rate. The first counter sc... | 06/23/1981 |
| 4214482 | Inertial instrument Disclosed is apparatus and method for accurately determining the direction of true north or the change in drift of other gyroscopes. The apparatus comprises a single degree of freedom gyroscope driven by a permanent magnet electric motor. The gyroscope ro... | 07/29/1980 |
| 4189946 | Three axis gyro In a gyroscope including a rotor spinning about a spin axis, the rotor gimballed about two mutually perpendicular axes and including cross coupled closed loops operative on the two mutually perpendicular axes so as to be able to detect rates about said tw... | 02/26/1980 |
| 4189947 | Nutation damper for two-axis gyroscope An electrical circuit interposed between the pickoffs and torquers of a two-axis gyroscope. The circuit output controls the torquers. When the pickoff signals vary at the nutation frequency, the angular accelerations produced by the torquers damp the nuta... | 02/26/1980 |
| 4155521 | Cannon launched platform A gyro seeker which is capable of use in a cannon launched missile. The gyro seeker is enclosed in a housing mounted in the nose section of the missile. The platform of the gyro seeker supports an optical assembly, a detector, a gyro assembly, and a cryos... | 05/22/1979 |
| 4125799 | Gyro caging loop system A system for providing a stable caging loop for two-degree-of-freedom dry tuned gyros used in a strap-down inertial navigation system. The system provides satisfactory noise rejection and good navigation accuracy using cross axis torquing only with extrem... | 11/14/1978 |
| 4111562 | Hydraulic gimbal system for beam projection lamps A gimbal system is disclosed in which low static friction hydraulic motors drive two concentric movable rings in orthogonal planes. For each ring, the drive shaft of the motor is part of one supporting axle. The other supporting axle is coupled to a shaft... | 09/05/1978 |
