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Class Information
Number: 702/92
Name: Data processing: measuring, calibrating, or testing > Calibration or correction system > Direction (e.g., compass)
Description: Subject matter including means to calibrate or correct components or output measurement data of a direction indicating system comprising at least a sensing means (e.g., gyro, geomagnetic field sensor, cross coil type indicator, etc.).
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7613567 |
Method for correcting the outputs of vehicle behavior sensor |
Nov. 3, 2009 |
| 7613581 |
Method, apparatus, and medium for calibrating compass sensor in consideration of magnetic environment and method, apparatus, and medium for measuring azimuth using the compass sensor calibrati |
Nov. 3, 2009 |
| 7606676 |
Compass sensor unit and portable electronic device |
Oct. 20, 2009 |
| 7581326 |
Optical solid-state heading sensor |
Sep. 1, 2009 |
| 7558688 |
Angle calibration of long baseline antennas |
Jul. 7, 2009 |
| 7532991 |
Magnetic data processing device |
May. 12, 2009 |
| 7509223 |
Read-side calibration for data interface |
Mar. 24, 2009 |
| 7493231 |
Process for determining the actual position of a rotation axis of a transportation mechanism |
Feb. 17, 2009 |
| 7474977 |
Compass sensor unit and portable electronic device |
Jan. 6, 2009 |
| 7472032 |
Adaptive multi-axis sensor array |
Dec. 30, 2008 |
| 7467061 |
Information processing method and apparatus for finding position and orientation of targeted object |
Dec. 16, 2008 |
| 7451549 |
Automatic calibration of a three-axis magnetic compass |
Nov. 18, 2008 |
| 7451059 |
True azimuth and north finding method and system |
Nov. 11, 2008 |
| 7433798 |
Solid state orientation sensor with 360 degree measurement capability |
Oct. 7, 2008 |
| 7421792 |
Apparatus and method of calibrating azimuth of mobile device |
Sep. 9, 2008 |
| 7389590 |
Geomagnetic sensor for computing azimuth and method thereof |
Jun. 24, 2008 |
| 7376527 |
Azimuth measuring device |
May. 20, 2008 |
| 7363718 |
Orientation data generation method, orientation sensor unit and portable electronic equipment |
Apr. 29, 2008 |
| 7325320 |
Method for estimating the accuracy of azimuthal orientations and portable sighting device |
Feb. 5, 2008 |
| 7324906 |
Compass sensor unit and portable electronic device |
Jan. 29, 2008 |
| 7305315 |
Method of compensating tilt using two-axis geomagnetic sensor, and acceleration sensor, and apparatus thereof |
Dec. 4, 2007 |
| 7295943 |
Geomagnetic sensor for calibrating azimuth by compensating for an effect of tilting and method thereof |
Nov. 13, 2007 |
| 7275008 |
Calibration of 3D field sensors |
Sep. 25, 2007 |
| 7266470 |
Method for mitigating interference between nearby proximity sensors |
Sep. 4, 2007 |
| 7266452 |
Electronic compass system |
Sep. 4, 2007 |
| 7248983 |
Electronic compass and method of controlling an electronic compass using independent calibration and compass heading modules |
Jul. 24, 2007 |
| 7237343 |
Orientation data generation method, orientation sensor unit and portable electronic equipment |
Jul. 3, 2007 |
| 7225551 |
Electronic compass and method for tracking vehicle rotation |
Jun. 5, 2007 |
| 7210236 |
Method and apparatus for measuring magnetic offset of geomagnetic sensor and portable electronic apparatus |
May. 1, 2007 |
| 7212936 |
Method, system and computer program product for automated discovery and presentation of the direction of flow through components represented in a drawing set |
May. 1, 2007 |
| 7162807 |
Geomagnetic sensor having a dip angle detection function and dip angle detection method therefor |
Jan. 16, 2007 |
| 7149627 |
Electronic compass system |
Dec. 12, 2006 |
| 7143004 |
Solid state orientation sensor with 360 degree measurement capability |
Nov. 28, 2006 |
| 7119533 |
Method, system and device for calibrating a magnetic field sensor |
Oct. 10, 2006 |
| 7069663 |
Apparatus and method of calibrating azimuth of mobile device |
Jul. 4, 2006 |
| 7020336 |
Identification and evaluation of audience exposure to logos in a broadcast event |
Mar. 28, 2006 |
| 6937954 |
Signal processor for use in electronic compass |
Aug. 30, 2005 |
| 6931339 |
Compass and communication system |
Aug. 16, 2005 |
| 6922647 |
Device and method for automatically detecting a calibration termination for a geomagnetic sensor |
Jul. 26, 2005 |
| 6904377 |
Method for measuring force-dependent gyroscope sensitivity |
Jun. 7, 2005 |
| 6868360 |
Small head-mounted compass system with optical display |
Mar. 15, 2005 |
| 6853918 |
Electronic compass |
Feb. 8, 2005 |
| 6768957 |
Electronic azimuth meter, correcting mechanism for electronic azimuth meter, and electronic timepiece having electronic azimuth meter |
Jul. 27, 2004 |
| 6760678 |
Electronic compass |
Jul. 6, 2004 |
| 6725169 |
Methods and apparatus for automatic gain control |
Apr. 20, 2004 |
| 6564158 |
Broadband electromagnetic field component measurement system |
May. 13, 2003 |
| 6523271 |
Method of adjusting drive current of magnetism sensor and electronic azimuth meter |
Feb. 25, 2003 |
| 6449572 |
Method and device for classifying the driving style of a driver in a motor vehicle |
Sep. 10, 2002 |
| 6418376 |
Method and apparatus to maintain compass heading with a moveable sensor mounting |
Jul. 9, 2002 |
| 6408251 |
Calibrating a magnetic compass with an angular rate gyroscope and a global positioning system receiver |
Jun. 18, 2002 |
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