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| Number | Title | Issue Date |
| 8155884 | Bearing display apparatus and bearing display method A bearing display apparatus provided with a geomagnetic sensor for detecting earth-magnetism, a display unit, and a control unit for calculating a geographical bearing based on detection values of the geomagnetic sensor and making the display unit display the inform... | 04/10/2012 |
| 7992313 | Sensor chip, detection device and method of manufacturing detection device A detection device includes an X-axis magnetic sensor, a Y-axis magnetic sensor, and a Z-axis magnetic sensor each having a sensing axis for detecting a geomagnetic azimuth and a sensor controlling semiconductor. The magnetic sensors are selected from those fabricat... | 08/09/2011 |
| 7958644 | Orientation sensing in a multi part device A device comprises a first part (1) which has user input means (10) and comprising a three-degrees-of-freedom orientation sensing system (11) for determining a three-degrees-of-freedom orientation (01) of the first part (1) with re... | 06/14/2011 |
| 7937845 | Low cost electronic compass with 2D magnetometer An electronic compass has a 2D magnetometer for determining two of the three components of the earth-magnetic field vector. Values for the magnitude and inclination of the field at the location of the device are given. If at least one of the body axes of the device ... | 05/10/2011 |
| 7926193 | Nanowire magnetic sensor A nanowire magnetic sensor includes an array of magneto-resistive (MR) nanosensors with each MR nanosensor including a set of MR nanowires that are all aligned in the same position for one direction. The substrate can be a flexible substrate bent into a circular con... | 04/19/2011 |
| 7921571 | Device for mechanically locating and reading the setting of an adjustable valve The invention proposes a device for mechanically locating and reading the setting of an adjustable magnetic valve for controlling the flow of a fluid in a predetermined direction to locate the magnetic centre of the valve and to determine the setting of the valve. T... | 04/12/2011 |
| 7891102 | Nanowire magnetic compass and position sensor A nanowire magnetic sensor and position sensor for determining the position of a magnetic object and direction of magnetic field is disclosed herein. The magnetic compass includes a number of magnetic nanosensor printed on a flexible substrate, which covers 360-degr... | 02/22/2011 |
| 7870678 | Hybrid sensor module and sensing method using the same Provided is a hybrid sensor module including first and second sensors that are attached on one surface of a printed circuit board (PCB) so as to detect two-axis signal components parallel to the PCB; a third sensor that is attached on one surface of the PCB such tha... | 01/18/2011 |
| 7832111 | Magnetic sensing device for navigation and detecting inclination A system and device for detecting yaw and changes in pitch angle for use with navigational and positional devices. The system and device include a multi-axis magnetic field sensing device and a controller. Preferably, the magnetic field sensing device is a multi-axi... | 11/16/2010 |
| 7818890 | Magnetic field sensor circuit A magnetic field sensor circuit comprises a first magneto-resistive sensor (Rx) which senses a first magnetic field component in a first direction to supply a first sense signal (Vx). A first flipping coil (FC1) applies a first flipping magnetic field with a ... | 10/26/2010 |
| 7637024 | Magnetic field sensing device for compassing and switching A magnetic field sensing device can be realized by using a magnetic sensor in electronic compassing as well as switching. A magnet can be brought in close proximity to the magnetic sensor within an electronic compass to generate a signal that a portable information ... | 12/29/2009 |
| 7581326 | Optical solid-state heading sensor A heading sensor includes a housing containing an interferometer having a mirror movable in response to fluctuations in a gravitational force applied to the housing. The interferometer, responsive to a light beam, generates an optical signal modulated according to t... | 09/01/2009 |
| 7559148 | Magnetic azimuth detecting device A magnetic azimuth detecting device is easily reduced in size. Three or more magnetic sensors 3 and a control semiconductor 4 controlling these magnetic sensors 3 are attached to and mounted on a surface of a circuit substrate 2, and the ... | 07/14/2009 |
| 7552541 | Pointing device A pointing device includes hall elements that detect inclinations of a magnet in first, second and third directions, and a control unit that determines a pointing direction with output voltages of the hall elements depending on the inclinations of the magnet. ... | 06/30/2009 |
| 7448140 | Emergency responder's orientation method and device A method and device has been developed to enable emergency responders to maintain and communicate their orientation relative to a fire building or other emergency incident area as they work in and around it. The device is a specialized compass enhancement providing ... | 11/11/2008 |
| 7437257 | Geomagnetic sensor and geomagnetic sensor correction method, temperature sensor and temperature sensor correction method, geomagnetism detection device A geomagnetic sensor including a geomagnetism detection unit; a fuse memory for storing prescribed data according to a state of the electrical cut-off or connection; a correction data writing unit for inputting measurement values of said geomagnetism detection unit ... | 10/14/2008 |
| 7428780 | Viewing and display apparatus position determination algorithms Celestial object location devices with sensor arrays of having less that one sensor for each of three orthogonal components of gravity and magnetic field vectors. The accuracy of position sensing is enhanced by estimating “missing” sensor input based on input fr... | 09/30/2008 |
| 7418359 | Magnetic sensor control device A magnetic sensor control device has an input section, a selection section, a calculation section, and a setting section. The input section inputs a plurality of magnetic data each having 3 components sequentially output from a 3-dimensional (3D) magnetic sensor. Th... | 08/26/2008 |
| 7389592 | Lean detector of vehicle A lean detector for a vehicle is capable of reducing the cost of the parts of a lean sensor and enhancing the waterproof property thereof. The lean detector also detects when the leaning of the vehicle body has reached a prescribed angle in the right, left, front or... | 06/24/2008 |
| 7377046 | Inclination sensor and azimuth measuring apparatus using inclination sensor A mobile device or the like having a 3-axis electronic compass is rotated, and the outputs from magnetic sensors disposed in the three axis directions are input to a first arithmetic processing unit (11) so as to obtain the magnetic data X, Y, and Z. By input... | 05/27/2008 |
| 7353614 | Vehicle compass system with continuous automatic calibration The compass system of the present invention utilizes an improved calibration routine in which a processing circuit of the compass recalibrates the compass each time three data points are obtained from a magnetic field sensor that meet predetermined criteria. One suc... | 04/08/2008 |
| 7353613 | Directional sensor system comprising a single axis sensor element positioned at multiple controlled orientations A directional sensor system that incorporates a single axis sensor element that is manipulated to a plurality of orientations. The resulting responses of the sensor element at these locations are combined to obtain a measure of orientation of the system. The system ... | 04/08/2008 |
| 7337549 | Input device for using geomagnetic sensor and a method thereof for generating input signal An input device using a geomagnetic sensor includes a geomagnetic sensor outputting a voltage corresponding to geomagnetism, and a control part calculating an azimuth using the voltage output from the geomagnetic sensor and calculating the rotation angle by comparin... | 03/04/2008 |
| 7333394 | Navigational aid for diver A diver unit computes the direction and distance to a specified target. When the target is obstructed, the diver unit receives navigation assistance data from another diver unit. The navigation assistance data includes direction information that is referenced to a c... | 02/19/2008 |
| 7331114 | Magnetic compass structure A simple self-contained, hand-held instrument for reading an azimuth or bearing in relation to the earth's magnetic field either out in the field or on the water with substantial accuracy. Means are provided that places the far object into the same focal plane (or f... | 02/19/2008 |
| 7331115 | Vehicle compass compensation A compass compensation system is provided for automatically and continuously calibrating an electronic compass for a vehicle, without requiring an initial manual calibration or preset of the vehicle magnetic signature. The system initially adjusts a two axis sensor ... | 02/19/2008 |
| 7329013 | Interior rearview mirror system with compass An interior rearview mirror system for a vehicle includes an interior rearview mirror assembly, a casing having a reflective element, a compass sensor and a control. The compass sensor is disposed within the mirror casing and has a first magnetoresponsive sensing el... | 02/12/2008 |
| 7325320 | Method for estimating the accuracy of azimuthal orientations and portable sighting device In a method according to the invention for estimating the accuracy of azimuthal orientations (a) of a measuring device (1) having an electronic magnetic compass (2), a plurality of determinations of an azimuthal orientation (a, a′, a″, a′″, a... | 02/05/2008 |
| 7324906 | Compass sensor unit and portable electronic device In a compass sensor unit, an azimuth data computing method is carried out by the steps of: inputting a signal from a geomagnetic sensor to measure magnetic field; determining whether to store measurement data of the magnetic field based on a distance from the last s... | 01/29/2008 |
| 7318283 | Inclination sensor An inclination sensor includes: a case having a turning shaft section projected in a lateral direction on a front surface thereof; magnetism detecting means fixed on an upper side of the turning shaft section; a pair of magnets fixed in parallel to a rear surface of... | 01/15/2008 |
| 7302345 | Method and apparatus for generating magnetic field map and method and apparatus for checking pose of mobile body using the magnetic field map Provided is a method of generating a magnetic field map including obtaining magnetic field information, the magnetic field information being information on a magnetic field affecting a mobile body, for each position of the mobile body, and building a magnetic field ... | 11/27/2007 |
| 7291936 | Submersible electrical power generating plant A self-supporting, submersible generating plant for producing electricity from ocean currents, consisting of two counter-rotating, rear-facing turbines with a plurality of rotor blades extending radially outward from two separate horizontal axis that convey the kine... | 11/06/2007 |
| 7278219 | Magnetic compass A magnetic compass includes: a three-axis magnetic sensor for detecting geomagnetic vector as geomagnetic components in directions of three orthogonal axes x, y, and z; a data-plane calculating unit for calculating a data plane on which output data of the three-axis... | 10/09/2007 |
| 7273332 | Method and apparatus for through-hole placement in a building structure A method and apparatus for creating a through-hole in a building structure includes selecting a first location on a first side of the building structure that will define a first opening of the through-hole; disposing a magnet at the first location; selecting a secon... | 09/25/2007 |
| 7268544 | Magnetism detecting device for canceling offset voltage A magnetism detecting device includes a magnetometric sensor, a bias magnetic field generating unit, a voltage applying unit, a detecting unit, and an operating unit. The detecting unit calculates a first output corresponding to a difference between two voltage valu... | 09/11/2007 |
| 7249419 | Portable terminal apparatus with auto caliblation of orientation measurement A portable terminal apparatus is mounted in a casing and has a magnetic sensor that detects a magnetic field around the casing with an offset and outputs magnetic data representing the detected magnetic field, and a tilt sensor that detects a tilt of the casing and ... | 07/31/2007 |
| 7237343 | Orientation data generation method, orientation sensor unit and portable electronic equipment Data are input from a geomagnetic sensor that detects magnetic fields in three axial directions, and magnetic field data are measured on the basis of the input data. The measured magnetic field data are sequentially stored, and a determination is made as to whether ... | 07/03/2007 |
| 7225552 | Method and system to detect an orientation of a moving object Method and system to detect orientations of a moving object using one or more magnetic compasses. The method and system minimize magnetic field interference in a space where an object is moving such that the orientations of the moving object can be precisely detecte... | 06/05/2007 |
| 7222433 | Electromagnetic inclinometer An angle sensor comprising a housing (1) having horizontal and vertical axes, which housing is adapted to receive a magnetic core (5) such that the core remains in substantially the same plane, e.g. by floating on a liquid (4). The core is provi... | 05/29/2007 |
| 7214204 | Vibrating massager with visual communication means A multi-layer vibrating massager having a visual communication means for viewing an indicia disposed therein that does not interfere with the massaging function of the massager during operation is disclosed. The vibrating massager comprises a vibratory component enc... | 05/08/2007 |
