| Patents for G01C 17 - Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (3,922) |
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| 06/25/2008 | CN101206118A Method for automatically computing sun direction and automatic calculator thereof |
| 06/24/2008 | US7389590 Geomagnetic sensor for computing azimuth and method thereof |
| 06/18/2008 | CN101201626A Freedom positioning system for robot |
| 06/18/2008 | CN101201260A Multifunctional universal compass |
| 06/12/2008 | WO2008069241A1 Motion-sensing program and electronic compass using the same |
| 06/12/2008 | US20080140332 Vehicle compass compensation |
| 06/11/2008 | EP1929246A1 Calibration of 3d field sensors |
| 06/11/2008 | CN201072341Y Compass |
| 06/05/2008 | US20080129731 System and Method For Approximating an Editable Surface |
| 06/04/2008 | CN201067146Y Suspension tag |
| 06/04/2008 | CN101192342A Express highway all-way monitoring device based on combined navigation |
| 05/28/2008 | CN101187558A North seeking device |
| 05/27/2008 | US7379814 Electronic compass system |
| 05/27/2008 | US7377046 Inclination sensor and azimuth measuring apparatus using inclination sensor |
| 05/22/2008 | US20080120054 Vehicle compass system with continuous automatic calibration |
| 05/22/2008 | US20080116888 Three-axis fluxgate-type magnetism detecting device and method |
| 05/21/2008 | EP1558895B1 Mobile electronic three-dimensional compass |
| 05/21/2008 | CN201062953Y Auxiliary device for rapidly seeking satellite |
| 05/20/2008 | US7376527 Azimuth measuring device |
| 05/14/2008 | CN100387932C Southward pointing cart |
| 05/13/2008 | US7373276 Quantitative evaluation of emulsion stability based on critical electric field measurements |
| 05/13/2008 | US7370508 Rotor position detection in an electrical machine |
| 05/07/2008 | CN201055497Y Safety auxiliary device for visually impaired people walking |
| 05/07/2008 | CN101175280A Method for acquiring objective position direction by handhold equipment |
| 05/07/2008 | CN101174356A Large range battlefield situation intelligent perception system and perception method |
| 05/06/2008 | US7369960 Device and method for detecting an angular position of a rotating object |
| 05/02/2008 | WO2008051628A2 Apparatus and method for monitoring and controlling detection of stray voltage anomalies |
| 04/30/2008 | CN201053872Y Balancing device with direction setting function |
| 04/29/2008 | US7363718 Orientation data generation method, orientation sensor unit and portable electronic equipment |
| 04/24/2008 | WO2008046363A1 Navigation device and method for acquiring orientations |
| 04/23/2008 | EP1628114B1 Small-sized attitude detection sensor and cellular phone having the same |
| 04/23/2008 | CN201050983Y Universe compass |
| 04/22/2008 | US7363185 Fluxgate sensor for calibrating azimuth at slope and calibration method thereof |
| 04/17/2008 | WO2008007261A3 Orientation sensing in a multi part device |
| 04/17/2008 | US20080091372 Compass sensor unit and portable electronic device |
| 04/17/2008 | US20080091360 System and method for measuring surface appearance of a surface |
| 04/16/2008 | CN201048414Y Mobile phone with compass |
| 04/15/2008 | US7359825 Optical measurement instrument and optical measurement method |
| 04/09/2008 | EP1909065A2 A magnetic sensor module, method of correction therefor, and mobile object including the magnetic sensor module |
| 04/08/2008 | US7356439 Motion detection apparatus and method |
| 04/08/2008 | US7353614 Vehicle compass system with continuous automatic calibration |
| 04/01/2008 | US7353135 Positioning and aligning the parts of an assembly |
| 04/01/2008 | US7353129 Altimeter having temperature correction |
| 04/01/2008 | US7352369 System and method for approximating an editable surface |
| 04/01/2008 | US7352177 Three-axis fluxgate-type magnetism detecting device and method |
| 03/27/2008 | CA2657798A1 Grain angle sensor |
| 03/26/2008 | EP1903305A2 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 calibration method, apparatus, and medium |
| 03/26/2008 | CN101149262A Method, apparatus, and medium for calibrating compass sensor, method ,apparatus and medium for measuring azimuth |
| 03/25/2008 | US7349805 Wristop computer and a method in connection with it |
| 03/25/2008 | US7346995 System and method for compensating for magnetic disturbance of a compass by a moveable vehicle accessory |
| 03/20/2008 | US20080071492 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 calibration method, apparatus, and medium |
| 03/20/2008 | US20080068400 Electro-optic vision systems |
| 03/20/2008 | US20080066331 Magnetometer correction system and method |
| 03/19/2008 | CN201039257Y Mobile phone with compass |
| 03/19/2008 | CN101144721A Mobile terminal device and program |
| 03/19/2008 | CN101144718A Orientation indicating method and device |
| 03/18/2008 | US7346466 Geomagnetic sensor and geomagnetic sensor correction method, temperature sensor and temperature sensor correction method, geomagnetism detection device |
| 03/13/2008 | US20080064109 Apparatus for storing computer program comprising sensor for detecting accelerations in at least two-axis directions |
| 03/12/2008 | CN201034605Y Pendant type compass |
| 03/12/2008 | CN201034604Y Housing layout orientator |
| 03/12/2008 | CN201034603Y Southward pointing cart |
| 03/06/2008 | WO2008026330A1 Electronic compass |
| 03/06/2008 | US20080052933 Inclination sensor and azimuth measuring apparatus using inclination sensor |
| 03/06/2008 | US20080052932 Magnetic MEMS sensors |
| 03/06/2008 | US20080052931 Hybrid sensor module and sensing method using the same |
| 03/06/2008 | US20080052930 Pivotal Laser Light Directional Indicator with Attached Compass |
| 03/05/2008 | CN201032449Y Direction indicating equipment |
| 03/04/2008 | US7340362 Azimuth measurement device and azimuth measurement method |
| 03/04/2008 | US7337549 Input device for using geomagnetic sensor and a method thereof for generating input signal |
| 02/28/2008 | US20080051987 Bearing Calculator and Error Correction Method |
| 02/27/2008 | CN100371729C Weak magnetic field sensor using printed circuit board technology and its manufacturing method |
| 02/21/2008 | WO2004076971A3 Electronic compass system |
| 02/21/2008 | US20080046214 Sensor system |
| 02/19/2008 | US7331115 Vehicle compass compensation |
| 02/19/2008 | US7331114 Magnetic compass structure |
| 02/13/2008 | CN201021967Y Car rearview mirror with electronic compass display |
| 02/12/2008 | US7330730 Portable terminal |
| 02/12/2008 | US7328741 System for sensing riser motion |
| 02/07/2008 | WO2008016198A1 3 axis thin film fluxgate |
| 02/06/2008 | CN201016733Y Theodolite compass |
| 02/06/2008 | CN201016720Y Plane table |
| 02/06/2008 | CN101120263A Single package design for 3-axis magnetic sensor |
| 02/06/2008 | CN100367001C Azimuth meter |
| 02/05/2008 | US7325320 Method for estimating the accuracy of azimuthal orientations and portable sighting device |
| 01/31/2008 | WO2008012990A1 Portable electronic device and method of controlling the same |
| 01/29/2008 | US7324906 Compass sensor unit and portable electronic device |
| 01/29/2008 | US7324016 Navigational indicating system for rotary wing aircraft |
| 01/29/2008 | US7322117 System and method for compensating for motor magnetic disturbance of a compass measurement |
| 01/23/2008 | EP1880168A1 Device comprising a sensor arrangement and an estimator |
| 01/23/2008 | EP1880167A1 Device comprising a sensor arrangement and an updater |
| 01/23/2008 | CN201011725Y Mobile phone |
| 01/23/2008 | CN201009590Y Tool ruler for student |
| 01/22/2008 | US7321838 Relative range camera calibration |
| 01/22/2008 | US7321228 Detection of metal disturbance in a magnetic tracking system |
| 01/16/2008 | CN101105398A Device for implementing rough north-seeking of gyroscope using electronic compass |
| 01/15/2008 | US7319438 Stabilization of the effects of jitter on a displayed image |
| 01/15/2008 | US7319383 Distributed motion prediction network |
| 01/09/2008 | EP1876417A1 Inclination sensor and direction finding device using the same |
| 01/09/2008 | EP1875165A1 Method for displaying objects to be positioned on a display of a positioning device, a positioning device and an application |
| 01/08/2008 | US7317315 Magnetic azimuth measurement apparatus |