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Vehicular Impact Signaling Device
An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.
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| Number | Title | Issue Date |
| 8061049 | Magnetometer accuracy and use A parameter related to the Earth's magnetic field can be used to determine accuracy of a magnetometer of a mobile device. In one aspect, a first instance of a parameter related to Earth's magnetic field is determined using data generated by the magnetometer. The mag... | 11/22/2011 |
| 8001696 | Vehicle compass compensation A calibration method for calibrating a compass system suitable for use in a vehicle includes sampling data points of a magnetic field with a magneto-responsive sensor and processing output signals of the sensor via compass circuitry. The compass circuitry includes a... | 08/23/2011 |
| 7987606 | System for testing accuracy of electronic compass A system for testing the accuracy of an electronic compass is disclosed. The system includes a circular track, a compass seat, an electromagnetic element, a driver, a power source, a calculator, and a magnetic shielding chamber. The electromagnetic element is dispos... | 08/02/2011 |
| 7950160 | Mobile electronic apparatus and bearing display method of same A mobile electronic apparatus capable of effectively preventing erroneous recognition of a bearing (azimuth oz compass direction) by a user, as a correct display of the bearing is correct when the reliability of the display of the bearing is lowered by a change of t... | 05/31/2011 |
| 7921572 | Accuracy indications for an electronic compass in a portable device Multiple instances of a geomagnetic field are calculated. Multiple instances of an average magnitude of a subset of the instances of the geomagnetic field are also calculated. When the average magnitude changes by more than a first predetermined threshold, the user ... | 04/12/2011 |
| 7905026 | Compass device and method for a compass device The invention relates to a method for defining a compass direction by means of an electronic compass device. In the method at least two field components of an external magnetic field are measured, from which a set of data points is formed, which correspond to the di... | 03/15/2011 |
| 7891103 | Magnetometer accuracy and use A parameter related to the Earth's magnetic field can be used to determine accuracy of a magnetometer of a mobile device. In one aspect, a first instance of a parameter related to Earth's magnetic field is determined using data generated by the magnetometer. The mag... | 02/22/2011 |
| 7814671 | Mobile bearing calculator and bearing correction method A mobile bearing calculator having a geomagnetic sensor for detecting earth-magnetism and a control unit for calculating a geographical bearing based on detection values of the geomagnetic sensor. The control unit monitors for an event such as a change of operation ... | 10/19/2010 |
| 7743519 | Sensor module, method of correction therefor, and mobile object including the sensor module A sensor module maintaining high detection accuracy. Correction data of a detected magnetic field is updated only in a case that a fluctuation band acquired from an output signal of an acceleration sensor is less than a threshold value and a difference between an az... | 06/29/2010 |
| 7568290 | 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 ... | 08/04/2009 |
| 7523559 | 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 p... | 04/28/2009 |
| 7509748 | Magnetic MEMS sensors The disclosure relates to micro-electromechanical systems (MEMS) and magnetic MEMS sensors. The sensors include a substrate having a surface, a first magnetic field detector positioned on the surface, a second magnetic field detector positioned on the surface proxim... | 03/31/2009 |
| 7458166 | Vehicle compass system with continuous automatic calibration The compass system of the present invention utilizes an improved calibration route 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 ... | 12/02/2008 |
| 7451549 | Automatic calibration of a three-axis magnetic compass A magnetic compass apparatus and method to account for magnetic distortion while determining a magnetic heading is disclosed. The method enables a compass module, comprising at least two magnetometers, to characterize its magnetic environment dynamically, while coll... | 11/18/2008 |
| 7437242 | Navigation apparatus A navigation apparatus mounted on a vehicle is equipped with a first gyro sensor and a second gyro sensor arranged in symmetry with respect to a first axis in a travel direction of the vehicle and to a second axis that passes through the center of gravity of the veh... | 10/14/2008 |
| 7436120 | Compensation of magnetic fields For compensation of a magnetic field in an operating region a number of magnetic field sensors (S1, S2) and an arrangement of compensation coils (Hh) surrounding said operating region is used. The magnetic field is measured by at least two sensors (S | 10/14/2008 |
| 7421792 | 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 di... | 09/09/2008 |
| 7400142 | Dynamic magnetic anomaly compensation An array of three-axis magnetometers used for dynamic magnetic anomaly compensation are located at the corners of a parallelopiped, with pairs of magnetometer outputs used to derive a magnetic anomaly gradient vector used to compensate a compass and/or the output of... | 07/15/2008 |
| 7389590 | 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 a... | 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 |
| 7363718 | 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 ... | 04/29/2008 |
| 7358722 | Integrated three-dimensional magnetic sensing device and method to fabricate an integrated three-dimensional magnetic sensing device An integrated three-dimensional magnetic or any field sensing device and a method to fabricate an integrated three-dimensional magnetic sensing device is presented. An integrated three-dimensional magnetic sensing device comprises an apparatus that defines at least ... | 04/15/2008 |
| 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 |
| 7352177 | Three-axis fluxgate-type magnetism detecting device and method A three-axis fluxgate-type circuit having three fluxgate sensors for outputting three analog voltage values respectively. A controller normalizes three digital voltage values corresponding to said three analog voltage values, select a set of linear voltage values fr... | 04/01/2008 |
| 7346995 | 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 po... | 03/25/2008 |
| 7346466 | Geomagnetic sensor and geomagnetic sensor correction method, temperature sensor and temperature sensor correction method, geomagnetism detection device A magnetism detection device includes a geomagnetism detection element for detecting geomagnetism of each transverse axial component and a nonvolatile memory element of a thermal metamorphic type for storing one piece or a plurality of pieces of correction data for ... | 03/18/2008 |
| 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 |
| 7336070 | Bridge circuited magnetic sensor having magneto-resistive element and fixed resistor with the same layer configuration The application provides a magnetic sensor which can suppress an irregularity of a central potential due to a change in a temperature, decrease size of the sensor, and lower the manufacturing cost of the sensor. A magneto-resistive element and fixed resister are pro... | 02/26/2008 |
| 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 |
| 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′″, aâ€... | 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 |
| 7322117 | 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 ... | 01/29/2008 |
| 7323870 | Magnetoresistive sensor element and method of assembling magnetic field sensor elements with on-wafer functional test A method of performing an on-wafer function testis provided for multiple magnetic field sensor elements on a wafer. Each sensor element includes a magnetic-field-sensitive structure and a current conductor structure. The current conductor structure provides a test m... | 01/29/2008 |
| 7317315 | Magnetic azimuth measurement apparatus A magnetic azimuth measurement apparatus without arithmetic means nor any mechanical motion such as rotation, not affecting its mass production ability because of a simple configuration, and making it possible to measure a azimuth in higher precision, is provided. A... | 01/08/2008 |
| 7295943 | Geomagnetic sensor for calibrating azimuth by compensating for an effect of tilting and method thereof A geomagnetic sensor capable of calibrating an accurate azimuth even if the geomagnetic sensor is in a tilting state. The geomagnetic sensor includes a geomagnetism measuring unit, having a drive pulse generating unit for generating a pulse signal and two-axis flux ... | 11/13/2007 |
| 7281339 | Encoder system A structure and associated method to accurately read an encoder tape in an encoder system. The encoder system comprises, a read head, a shoe structure adjacent the read head, and an encoder tape. The encoder tape is adapted to be read by the read head. The shoe stru... | 10/16/2007 |
| 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 |
| 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 |
| 7266446 | Helmet mounted tracking system and method A helmet mounted tracking system for target designation includes an airplane azimuth sensor, a helmet mounted azimuth sensor, an airplane pitch sensor, a helmet mounted pitch sensor, and a processor. The airplane azimuth sensor determines an azimuth heading for an a... | 09/04/2007 |
