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| Number | Title | Issue Date |
| 8099876 | Azimuth determination system and method therefor An azimuth determination system has a platform. A plurality of gimbals is attached to the platform to allow the platform to rotate about multiple axes. A pair of gryos is attached to the platform. A leveling device is attached to the platform to indicate when the pl... | 01/24/2012 |
| 7412775 | Gyroscope north seeker system and method A sensor system and method for determining a relative direction to true north is provided. The system comprises at least one angular rate sensor, such as a MEMS sensor, which has an input axis and a rotation axis. The sensor comprises a motor drive structure, a moto... | 08/19/2008 |
| 7269532 | Device and method for measuring orientation of a solid with measurement correction means The present invention relates to a device for detecting the orientation of a solid including a sensor of angular position, capable of being affixed to the solid and of supplying at least a measuring datum representative of the orientation of the solid. The device al... | 09/11/2007 |
| 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 |
| 7223063 | 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... | 05/29/2007 |
| 7194813 | Gyrocompass A gyrocompass has a gyrosphere which incorporates a rotor and floats in a liquid tank filled with an electrolyte, and a plurality of electrodes which are disposed in the gyrosphere and the liquid tank, and are respectively opposed through the electrolyte, wherein at... | 03/27/2007 |
| 7114263 | Gyrocompass A gyrocompass has a liquid tank containing a supporting liquid therein, a gyrosphere floating in the liquid tank by the supporting liquid and whose central portion is rotatably supported by a center pin provided in an upper portion of the liquid tank, a gyro rotor i... | 10/03/2006 |
| 7107154 | Wellbore evaluation system and method A wellbore evaluation system evaluates mechanical wear and corrosion to components of a well system including a production tubing string positionable in a well and a sucker rod string movable within the production tubing string. A deviation sensor determines a devia... | 09/12/2006 |
| 7102258 | Manual electric generating device The present invention discloses a manual electric generating device, which comprises an upper casing, a lower casing; a rotor, a fixed stand, a hollow cylinder, a coil for generating power supply; and a printed circuit board for processing and outputting the power s... | 09/05/2006 |
| 7065888 | Gyroscopic system for boresighting equipment A gyroscopic system for translating parallel and non-parallel lines between a reference line and a device to be aligned with respect to the reference line is provided. The system includes a first inertial sensor configured to be substantially stationary, the first i... | 06/27/2006 |
| 7057503 | Vehicle rollover detection system A roll angular velocity sensor and a lateral velocity sensor are operatively coupled to a processor, which generates a signal for controlling a safety restraint system responsive to measures of roll angular velocity and lateral velocity. In one embodiment, the proce... | 06/06/2006 |
| 7013571 | Laser level A light detector which includes a housing having front and rear walls, a light receiving section disposed on the front wall, and displays disposed on the front and rear walls for showing the location of received light relative on the light receiving section. Also di... | 03/21/2006 |
| 7012677 | Optoelectronic angle measuring instrument and method for its production An optoelectronic angle measuring instrument, and method for its production, which optoelectronically detects the angle of rotation of an input shaft by means of a dimensional standard connected to the shaft. Light from a light source is parallel-collimated by a col... | 03/14/2006 |
| 7003386 | Device and method for determining the position of a working part The invention relates to a device and to a method for determining the position for a working part of a tool on a working machine with a position-determining apparatus (2, 4, 5, 6; 2, 4a, 4b, 5, 6′; 31, 33, 49, 50, 51, 1′,53). At least one de... | 02/21/2006 |
| 6915584 | Compass with electromagnetic half-shell transformer energy transmission and optoelectronic data signal transmission The invention concerns a compass having an electro magnetic half-shell transformer energy transmission and opto electronic data transmission. To avoid a slipring connection during the transfer of supply voltage at least one winding on the primary half-shell is conne... | 07/12/2005 |
| 6892118 | Pictographic mode awareness display for aircraft A device, method and computer program for generating and displaying graphical displays symbolic of current and available operational modes of instrument systems, such as navigation and autopilot systems. Accordingly, the method of the invention includes receiving a ... | 05/10/2005 |
| 6842991 | Gyro aided magnetic compass An improved method, system, and device for a compass combining an electronic magnetic compass and an angular velocity sensing gyroscope. One aspect of the invention integrates an angular velocity output signal from an angular velocity sensor or rate gyroscope to det... | 01/18/2005 |
| 6816064 | Escape apparatus detecting an emergency situation and providing illumination A survival device for use in an emergency situation includes a battery, a lamp, and a detection circuit for detecting an occurrence of the emergency situation and for switching the lamp to be powered by the battery when such an occurrence is detected. In one form, t... | 11/09/2004 |
| 6631563 | Survey apparatus and methods for directional wellbore surveying Wellbore survey methods and apparatus for wireline and measurement-while-drilling operations are disclosed which include a gyroscope, wherein the gyroscope has a spin axis, aligned with the instrument axis, and further having two sensitive axis orthogonal... | 10/14/2003 |
| 6615501 | Angle detection device with a data transmission path on an n.360° bearing assembly of a gyro compass An angle detection device with a data transmission path on an n.multidot.360° bearing assembly with at least one scanning disk (21) arranged on one of two components at right angles to the axis of rotation, and with electro-optical illumination and detec... | 09/09/2003 |
| 6594911 | Long-term navigation method and device Using an inertial master box mounted on a carrier for measuring its movements with respect to a geographic frame of reference of fixed directions along three axes Xg, Yg, Zg, a measuring method provides for continuously measuring an orientation of a frame... | 07/22/2003 |
| 6453570 | Electrically driven floating gyrocompass A gyrocompass having a capsule, mounted to float in an air-tight fashion, for at least one electrically driven gyro. The capsule is produced from two mutually adapted shells which are sealed with respect to one another and consist of a high-strength, corr... | 09/24/2002 |
| 6354011 | Orientation measuring device An orientation measuring device with a plurality of precision tooled grooves, indentations or the like. Two precision tooled adaptor bodies, preferably of cylindrical shape, are removably mountable in the indentations, where appropriate, for a given measu... | 03/12/2002 |
| 6131297 | Gyro compass To provide a gyro compass for the use of a high speed ship, in a gyro compass of the type having north-seeking means which is applied to support a gyro sphere or gyro case immersed in a liquid in a tank, a substantially first-order lag filter is provided ... | 10/17/2000 |
| 6047237 | Compass precalibration method A method of installing a compass system includes the steps of mounting the electronic compass in a vehicle, coupling the electronic compass to a power source of the vehicle, downloading precalibration data into the electronic compass after the electronic ... | 04/04/2000 |
| 5982487 | Inertial sensor arrangement with a heat insulated rigid sensor block An inertial sensor arrangement comprises a fiber gyro which responds to the horizontal component of the angular rate of the earth. A fiber coil of the fiber gyro is arranged at a positioning frame which is supported for rotation about a vertical axis rela... | 11/09/1999 |
| 5974675 | Navigation unit A navigation unit having a gyro sensor mounted thereon. The unit includes a mounting mechanism for changing the mounting direction of the gyro sensor so that the rotation detecting axis of the gyro sensor may be vertical, i.e. normal to a vehicle. In one ... | 11/02/1999 |
| 5789671 | Azimuth misalignment determination in an inertial navigator A process and algorithms to determine and correct for the error in azimuth alignment and the errors in "North" and "East" Gyro Drift Rates in an inertial navigator which has been aligned via gyrocompassing, or via the "Stored Heading" technique, with the ... | 08/04/1998 |
| 5778543 | Inertial sensor unit An inertial sensor unit for determining north, has a housing and a positioning gimbal rotatably mounted in this housing about a substantially vertical axis. A releasable, cooperating detent mechanism defines three fixed angular detent positions of the pos... | 07/14/1998 |
| 5771596 | Container for liquids including a level control and a gyro compass A first liquid container has therein a level control including a float valve, a storage tank or second container and a third container having therein a liquid which is maintained at a fixed liquid level. The third container is connected to the liquid in t... | 06/30/1998 |
| 5566461 | Method of determining the direction of north In a ribbon suspended meridian gyroscope in which the gyroscope restoring moment is compensated by a compensating moment, which compensating moment is measured, a North reference angle is determined from a number of different measurements taken in various... | 10/22/1996 |
| 5416976 | Gyro compass A gyro compass having a gyro case housing therein a gyro and supported with freedom of three axes, functions for outputting a signal corresponding to an inclined angle of the gyro spin axis relative to the horizontal plane, and a function for applying a t... | 05/23/1995 |
| 5375336 | Gyro-compass A support base of an angular velocity sensor is supported rotatably at one end, and the support base is vibrated by a piezoelectric element. By this vibration, a known rotational angular velocity is applied to the angular velocity sensor. For example, a d... | 12/27/1994 |
| 5369889 | Single gyro northfinder Disclosed is a northfinding apparatus having a single rotation rate sensor secured to a platform. The output of the rotation rate sensor is corrected for tilt and tilt rate of the platform. Measurements of the tilt and tilt rate and the rotation rate are ... | 12/06/1994 |
| 5349757 | Tape-suspended meridian gyro A tape-suspended meridian gyro has an outer housing, an intermediate housing movably mounted in the outer housing and a gyro having substantially horizontal spin axis. The gyro is suspended by means of a tape within the intermediate housing. A pick-off de... | 09/27/1994 |
| 5272815 | Gyro compass A gyro compass having a gyro case housing therein a gyro and supported with freedom of three axes, functions for outputting a signal corresponding to an inclined angle of the gyro spin axis relative to the horizontal plane and a function for applying a to... | 12/28/1993 |
| 5247748 | Gyro compass A gyro compass having a gyro case housing therein a gyro whose spin axis is held substantially in the horizontal plane, a supporting device for supporting the gyro case with freedom of three axes and means for applying a torque proportional to an inclined... | 09/28/1993 |
| 5187870 | Gyro compass A gyro compass according to the present invention includes an inclinometer for detecting inclination of the spin axis of a rotor with respect to the earth's surface, a horizontal axis torque applying device for exerting a torque about the horizontal axis ... | 02/23/1993 |
| 5166882 | System for calibrating a gyro navigator The present invention relates to a system for calibrating translation equons of a gyro navigator of a submarine. A value of velocity and a value of position of the submarine are produced by using values of acceleration sensed by accelerometers in the nav... | 11/24/1992 |
| 5115570 | Method for eliminating gyro errors In order to eliminate gyro errors of electrically caged, two-axis gyros, which have a pick-off (52,54) and a torquer (46,48) on each input axis, and each pick-off (52,54) arranged on one input axis energizes the torquer (48,46) on the other input axis, a ... | 05/26/1992 |
