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Geometrical Instruments > Indicator Of Direction Of Force Traversing Natural Media > Magnetic Field Responsive > Error Indicator, Preventor, Or Compensator Error Indicator, Preventor, Or CompensatorError Indicator, Preventor, Or Compensator patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.12/13/07 - 20070283585 - Two-axis geomagnetic sensor and method for manufacturing the same A two-axis geomagnetic sensor is disclosed. The two-axis geomagnetic sensor includes a first geomagnetic sensor part including a first wafer and a first geomagnetic sensor on a surface of the first wafer; and a second geomagnetic sensor part including a second wafer and a second geomagnetic sensor on a surface ... 07/19/07 - 20070163132 - 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 such criterion is that the three data points define corners ... 05/31/07 - 20070119061 - Geomagnetic sensor for computing azimuth and method thereof A geomagnetic sensor for computing an azimuth and a method thereof. The geomagnetic sensor includes a geomagnetic sensor module, including X, Y and Z axis fluxgates orthogonal to one another, for performing normalization for mapping output values of the X, Y and Z axis fluxgates onto a previously set normalization ... 05/10/07 - 20070101596 - System and method for compensating for magnetic disturbance of a compass by a moveable vehicle accessory A vehicle compass system for compensating for magnetic disturbances caused by a moveable vehicle accessory includes a magnetic field sensor and a control circuit coupled to the moveable vehicle accessory and the magnetic field sensor. The magnetic field sensor is positioned at a distance from the moveable vehicle accessory and ... 04/19/07 - 20070084070 - 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 magnetic sensor are present in a sensor coordinate system ... 04/19/07 - 20070084070 - 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 magnetic sensor are present in a sensor coordinate system ... 02/08/07 - 20070028471 - System and method for compensating for motor magnetic disturbance of a compass measurement A method for correcting a vehicle compass measurement for an interfering magnetic field generated by a vehicle accessory, where the interfering magnetic field has an intensity sufficient to cause a compass measurement error, includes monitoring the operation of the vehicle accessory and detecting a characteristic of operation of the vehicle ... 12/28/06 - 20060288597 - 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 such criterion is that the three data points define corners ... 08/24/06 - 20060185182 - 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 sequentially outputs tilt data ... 08/03/06 - 20060168832 - Geomagnetic sensor and geomagnetic sensor correction method, temperature sensor and temperature sensor correction method, geomagnetism detection device The correction coefficients a11-a22 of the magnetic sensors are measured during LSI shipment inspection. The correction data D1-D4 obtained from these correction coefficients a11-a22 are written into the fuse memory 315. The control circuit 308 inputs the detection outputs Sx and Sy of the magnetic sensors 310 and 311 to ... 07/20/06 - 20060156565 - Electronic device, computer program product and method of operating built-in compass There is provided an electronic device having a built-in compass, comprising: a processing unit for controlling functions of the electronic device; an input device for giving control commands; an acceleration sensor for measuring tilt angle of the electronic device. The processing unit is configured to set a horizontal condition required ... 05/04/06 - 20060090358 - Accelerometer augmented precision compass A compass device includes a platform defining an xz-plane and an x-axis. A first accelerometer is coupled to the platform at an angle such that the first accelerometer is sensitive to movement of the first accelerometer in the xz-plane. The first accelerometer includes a first flexure plate generating a first ... 04/13/06 - 20060075646 - 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 such criterion is that the three data points define corners ... 03/16/06 - 20060053644 - Compass orientation compensation A compass system comprises an electronic compass capable of providing a raw compass reading, at least one adjustment factor relating to a position of the electronic compass, and a compensation device selectively providing a compensated compass reading based on the raw compass reading and the adjustment factor. Further, at least ... 02/16/06 - 20060032064 - 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 a plurality of the magnetic field ... 02/09/06 - 20060026849 - Geomagnetic sensor for auto-calibration of magnetic field deviation and method of using the same A geomagnetic sensor for auto-calibration of a deviation and a method of using the geomagnetic sensor. The geomagnetic sensor includes a geomagnetic detector including X-axis and Y-axis fluxgates orthogonal to each other and receiving a drive signal to detect an electromotive force corresponding to a geomagnetism, a signal processor converting ... 02/02/06 - 20060021238 - 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 stored measurement data; calculating an ... 12/29/05 - 20050283988 - Method and apparatus for measuring magnetic offset of geomagnetic sensor and portable electronic apparatus A method is designed for measuring a magnetic offset of a geomagnetic sensor equipped in a portable information terminal apparatus having a storage. The geomagnetic sensor has a magnetic sensitivity to a geomagnetic field and is affected by magnetization to cause the magnetic offset. In the method, an output of ... 12/01/05 - 20050262714 - 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 of the compass in response to a sampling of at least one ... 12/01/05 - 20050262713 - System, method, device and computer code product for improving the readability of an electronic compass A system, method, device and computer code product is disclosed for stabilizing compass heading under tilt error conditions from an uncorrected electronic compass reading. Exemplary embodiments include a stabilizing filter configured to filter out tilt errors incorporated into the uncorrected electronic compass reading and a filter adaptation module configured to ... 10/20/05 - 20050229411 - 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″″) are carried out, in which the measuring device is aligned with ... 10/13/05 - 20050223575 - Electronic compass and method of calibration An electronic compass assembly includes a first collection portion and a second collection portion that each collect magnetic field data. The magnetic field data collected by the second collection portion partially overlaps the magnetic field data collected by the first collection portion. A processor module determines a calibration output based ... 10/13/05 - 20050223574 - Electronic compass and method for tracking vehicle rotation An example method for controlling an electronic compass includes determining compass tracking angles in a coordinate system for magnetic field data points that correspond to magnetic field sensor signals produced as a vehicle rotates relative to a surrounding magnetic field. The magnetic field data points produce an expected curve in ... 10/13/05 - 20050223573 - Compass heading noise immunity A method of controlling an electronic compass assembly includes calibrating magnetic field sensors to produce a calibration product and determining whether a magnetic interference condition exists based upon the calibration product. In one example, the calibration product includes a calibration ellipse. In another example, the method includes determining a first ... 09/01/05 - 20050188556 - Geomagnetic sensor for informing users whether detected azimuth angle is acceptable, and a method thereof A geomagnetic sensor which informs a user that information with respect to a distorted azimuth angle may be detected. The geomagnetic sensor includes a geomagnetism detection module including an X axis fluxgate and a Y axis fluxgate orthogonal to each other and detecting a predetermined amount of electrical signals corresponding ... 08/25/05 - 20050183274 - Geomagnetic sensor for detecting dip angle and method thereof A geomagnetic sensor for detecting a dip angle includes a geomagnetic detection module for outputting an electric signal having a magnitude corresponding to a magnetic field; a memory for storing an azimuth measured in a horizontal plane; an accelerometer module for measuring a tilt at present, and computing a tilt ... 07/28/05 - 20050160609 - Apparatus and method of calibrating azimuth of mobile device Provided are an apparatus and method of calibrating azimuth of a mobile device. The apparatus includes: a magnetic field measuring unit having a plurality of magnetic sensors aligned in a constant angle interval on the mobile device and measuring magnetic field data indicating magnitudes of a magnetic field in different ... 07/21/05 - 20050155240 - Apparatus and method of calibrating azimuth of mobile device Provided are an apparatus and method of calibrating azimuth of a mobile device. The apparatus includes: a motor; a magnetic field measuring unit disposed in the mobile device and measuring magnetic field data indicating magnitudes of a magnetic field in different directions while being rotated by the motor; and a ... 07/14/05 - 20050150122 - 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 comparing the azimuth to a previously measured azimuth, thereby generating the input ... 06/30/05 - 20050138825 - Methods and apparatus for automatic magnetic compensation A method for characterizing distortions in the earth's magnetic field caused by a vehicle having a magnetometer affixed therein is described. The method includes repeatedly measuring the distorted magnetic field utilizing the magnetometer and obtaining a three-dimensional orientation of the vehicle axes with respect to the earth at a time ... 06/16/05 - 20050126023 - Method and apparatus for using magnetic field Provided a method and apparatus for using a magnetic field. The method includes: measuring and storing magnetic field data indicating magnitudes of a magnetic field in different directions at each time by rotating sensors over a space; and checking whether a disturbance of the magnetic field exists, using curve fitting ... ### FreshPatents.com Support |