| Patents for G01C 17 - Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (3,922) |
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| 09/24/2009 | US20090239586 Orientation sensing in a multi part device |
| 09/24/2009 | US20090235544 Illuminated level |
| 09/23/2009 | EP2102590A1 A device for and a method of determining the orientation of a plane in space |
| 09/17/2009 | WO2009112764A2 Method for making a magnetic field sensor and magnetic field sensor thus obtained |
| 09/17/2009 | WO2009112088A1 Device, method, and system for displaying data recorded with associated position and direction information |
| 09/17/2009 | CA2715654A1 Method for making a magnetic field sensor and magnetic field sensor thus obtained |
| 09/16/2009 | CN201311293Y Winebottle-shaped compass |
| 09/16/2009 | CN201311292Y Multifunctional compass |
| 09/16/2009 | CN201311291Y Compass with perpetual calendar |
| 09/16/2009 | CN201311290Y Compass device with indicating position |
| 09/16/2009 | CN101533277A Solar tracking device based on geographical parameters and method thereof |
| 09/16/2009 | CN101532837A Device for calibrating aircraft magnetic compasses |
| 09/16/2009 | CN100541125C Orientation data generation method, orientation sensor unit and portable electronic equipment |
| 09/09/2009 | EP2098945A1 Motion-sensing program and electronic compass using the same |
| 09/09/2009 | CN101526360A Electronic device and navigation method thereof |
| 09/09/2009 | CN101526357A Positioning device and method for controlling displacement of map data |
| 09/09/2009 | CN100539430C Signal processor for use in electronic compass |
| 09/09/2009 | CN100538268C Method and apparatus for measuring magnetic offset of geomagnetic sensor and portable electronic apparatus |
| 09/03/2009 | WO2009046463A3 Integrated tilt compensated compass in a single package |
| 09/02/2009 | CN100535593C Azimuth measuring device and azimuth measuring method |
| 09/01/2009 | US7581326 Optical solid-state heading sensor |
| 08/26/2009 | EP2093829A1 Antenna with levelling device and associated method |
| 08/26/2009 | CN201297931Y Simple sun-shadow compass |
| 08/26/2009 | CN100534052C Network message processing using inverse pattern matching |
| 08/26/2009 | CN100533060C Device for implementing rough north-seeking of gyroscope using electronic compass |
| 08/20/2009 | WO2009077976A3 Orientation measurement of an object |
| 08/19/2009 | CN201294556Y 电子指南针手机 Electronic compass phones |
| 08/19/2009 | CN201293644Y Anti-interference device for electronic compass of star control system |
| 08/19/2009 | CN201293643Y Magnetic compass capable of adjusting light |
| 08/19/2009 | CN101510913A System and method for implementing intelligent mobile phone enhancement based on three-dimensional electronic compass |
| 08/18/2009 | US7576743 System and method for approximating an editable surface |
| 08/13/2009 | WO2009098769A1 Navigation device and navigation method, and program for navigation |
| 08/13/2009 | WO2009098768A1 Navigation device and navigation method, and program for navigation |
| 08/05/2009 | EP2084492A2 Method and system for calibrating a touch screen |
| 08/05/2009 | CN201285264Y Oriented angle protractor |
| 08/04/2009 | US7568290 Vehicle compass compensation |
| 07/22/2009 | CN101487707A Portable electronic device with correctable azimuth angle and its correction method |
| 07/22/2009 | CN101487706A Electronic compass based on dynamically extracted valid data computing method |
| 07/22/2009 | CN101487705A Portable electronic device with electronic compass and electronic compass emendation method |
| 07/22/2009 | CN100516774C Magnetic north detecting device and magnetic north detecting method |
| 07/15/2009 | CN201273817Y Sensor equipped with compass |
| 07/15/2009 | CN100513995C Small-sized attitude detection sensor and cellular phone having the same |
| 07/14/2009 | US7559148 Magnetic azimuth detecting device |
| 07/08/2009 | CN201269757Y Injection molding body compass magnetic pointer |
| 07/08/2009 | CN101477181A Magnetometer having a dynamically adjustable bias setting and electronic vehicle compass incorporating the same |
| 07/08/2009 | CN100510625C Directino indicator |
| 07/08/2009 | CN100510624C Magnetism detecting device and electronic azimuth meter using the same |
| 07/08/2009 | CN100510623C Mobile terminal device |
| 07/07/2009 | US7558689 Information processing method and system |
| 07/07/2009 | US7558688 Angle calibration of long baseline antennas |
| 07/07/2009 | US7555840 Omni-directional lens in sundials and solar compasses |
| 07/07/2009 | CA2431722C Electronic compass and compensation of large magnetic errors |
| 07/02/2009 | US20090171608 Magnetic data processing device, magnetic data processing method, and magnetic data processing program |
| 07/02/2009 | US20090171607 Portable electronic device capable of re-calibrating azimuth and method thereof |
| 07/01/2009 | EP2075533A2 Portable electronic device capable of re-calibrating azimuth and method thereof |
| 07/01/2009 | EP2075532A2 Portable electronic device with electronic compass and method for calibrating compass |
| 07/01/2009 | EP2075531A2 Magnetic data processing device, magnetic data processing method, and magnetic data processing program |
| 07/01/2009 | CN201266086Y Gps罗盘 Gps Compass |
| 07/01/2009 | CN101473194A Magnetic field sensor |
| 06/30/2009 | US7552615 Failure detection device for rotation angle detection sensor |
| 06/30/2009 | US7552541 Pointing device |
| 06/25/2009 | WO2009077976A2 Orientation measurement of an object |
| 06/25/2009 | US20090158811 Apparatus and method for inspecting sensor module |
| 06/24/2009 | CN100504423C Low-intensity magnetic field sensor using printed circuit board manufacture technology and its manufacture method |
| 06/24/2009 | CN100504295C Mobile electronic three-dimensional compass |
| 06/23/2009 | US7552025 Position data interpolation method, position detecting sensor and position measuring device |
| 06/17/2009 | CN101458082A Forest digital compass |
| 06/17/2009 | CN100502565C Apparatus and method for determining geographical location relative to a designated geographical location |
| 06/11/2009 | US20090144996 Interior rearview mirror system with compass |
| 06/10/2009 | CN101451839A Magnetic compass digitalization correction method |
| 06/09/2009 | US7543392 Motion estimation method and system for mobile body |
| 06/04/2009 | WO2009068116A1 Controlling operation of a positioning module |
| 05/27/2009 | CN101441080A Device for detecting noise source direction |
| 05/27/2009 | CN100491914C Tool calibrator and tracker system |
| 05/21/2009 | US20090132198 Mobile Electronic Apparatus and Method for Processing Bearing of Mobile Electronic Apparatus |
| 05/20/2009 | CN201242443Y Calibration instrument for airplane magnetic compass |
| 05/20/2009 | CN201242442Y Aeroplane magnetic compass calibration equipment employing split type structure |
| 05/20/2009 | CN101438131A Calibration program and electronic compass |
| 05/20/2009 | CN101435702A Injection moulding body compass magnetic needle and its processing method |
| 05/14/2009 | WO2009061059A1 Method for calibrating terrestrial magnetism sensor and apparatus thereof |
| 05/14/2009 | WO2009060651A1 Vehicle detection method, vehicle detection unit, and vehicle detection device |
| 05/13/2009 | CN101430201A Compass based on polarization bionic principle |
| 05/12/2009 | US7532997 Electromagnetic tracking using a discretized numerical field model |
| 05/12/2009 | US7532991 Magnetic data processing device |
| 05/07/2009 | WO2008087464A3 Apparatus and method for monitoring and controlling detection of stray voltage anomalies |
| 05/07/2009 | US20090115412 Magnetic sensing device and electronic compass using the same |
| 05/06/2009 | CN201233241Y Electron compass and electronic horizontal bubble instrument using the electron compass |
| 05/06/2009 | CN101424532A Heaven and earth compass |
| 04/30/2009 | WO2006092800A3 System and method for scanning an intraoral cavity |
| 04/30/2009 | WO2004065965A3 Inertial north finder |
| 04/29/2009 | EP2053354A1 Laser surveying system |
| 04/29/2009 | EP2052303A2 Heading reference system with remote-mounted sensor |
| 04/29/2009 | CN101421585A Mobile electronic device and method for calibrating terrestrial magnetism sensor |
| 04/28/2009 | US7526403 Mortar ballistic computer and system |
| 04/28/2009 | US7526401 Relative range camera calibration |
| 04/28/2009 | US7523559 Compass heading noise immunity |
| 04/28/2009 | CA2447711C Azimuth meter |
| 04/22/2009 | CN201225034Y Automobile key with compass |
| 04/22/2009 | CN101416478A Electronic device and its control method |
| 04/15/2009 | CN201220606Y Electric southward pointing cart |