| Patents for G01C 17 - Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (3,922) |
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| 09/17/2003 | CN2574007Y Multifunctional compass 'Liqiyi' |
| 09/12/2003 | WO2003074969A2 Electronic compass system |
| 09/11/2003 | US20030169038 Weak-magnetic field sensor using printed circuit board manufacturing technique and method of manufacturing the same |
| 09/11/2003 | US20030169037 Weak-magnetic field sensor using printed circuit board manufacturing technique and method of manufacturing the same |
| 09/04/2003 | US20030167122 Electronic compass |
| 09/04/2003 | US20030167121 Electronic compass system |
| 09/03/2003 | EP1340043A2 Electronic compass and compensation of large magnetic errors for operation over all orientations |
| 09/03/2003 | EP1340042A2 Monitoring accuracy of an electronic compass |
| 09/03/2003 | EP0958486B1 Geomagnetic field direction measuring system |
| 08/28/2003 | WO2003071304A2 Motion prediction within an amorphous sensor array |
| 08/21/2003 | US20030158699 Orientation sensor |
| 08/21/2003 | US20030158661 Programmatically computing street intersections using street geometry |
| 08/20/2003 | EP1336078A2 Method and apparatus for orienting a map display in a mobile or portable device |
| 08/19/2003 | US6606799 Electronic azimuth meter and electronic time piece having electronic azimuth meter |
| 08/07/2003 | US20030148772 System and method for generating a directional indicator on a wireless communications device display |
| 07/31/2003 | US20030140510 Interruption of vehicle compass calibration in response to vehicle accessory interference |
| 07/24/2003 | US20030139829 Method and device for incremental position determination |
| 07/17/2003 | US20030134665 Electronic apparatus |
| 07/16/2003 | CN2560921Y Position-measuring device |
| 07/16/2003 | CN1430044A Steering engine automatic operation apparatus |
| 07/10/2003 | WO2003056276A1 Direction sensor and its production method |
| 07/10/2003 | WO2002097463A3 Magnetic field sensor |
| 07/10/2003 | US20030130816 Device for reliable position monitoring |
| 07/03/2003 | WO2002037827A9 Method and apparatus for motion tracking of an articulated rigid body |
| 06/26/2003 | US20030120448 System for three dimensional positioning and tracking |
| 06/26/2003 | US20030115764 Vehicle compass compensation |
| 06/26/2003 | US20030115763 Navigation device |
| 06/25/2003 | CN1112569C Reflective magnetic compass for ship |
| 06/19/2003 | US20030110651 Magnetic compass having illuminatingn device |
| 06/19/2003 | US20030110650 Magnetic compass |
| 06/17/2003 | US6578277 Magnetic compass |
| 06/11/2003 | EP1318381A2 Method and system for interfacing a global positioning system, other navigational equipment and wireless networks with a digital data network |
| 06/11/2003 | CA2364813A1 Magnetic compass having illuminating device |
| 06/10/2003 | US6577976 Method for dynamic autocalibration of a multi-sensor tracking system and apparatus incorporating it therein |
| 06/05/2003 | US20030103002 Portable terminal |
| 06/04/2003 | CN1422051A 电子设备 Electronic equipment |
| 05/30/2003 | WO2003044540A2 Magnetometer having a dynamically adjustable bias setting and electronic vehicle compass incorporating the same |
| 05/30/2003 | CA2465826A1 Magnetometer having a dynamically adjustable bias setting and electronic vehicle compass incorporating the same |
| 05/28/2003 | EP1314961A2 Electronic apparatus |
| 05/22/2003 | US20030094942 Magnetometer having a dynamically adjustable bias setting and electronic vehicle compass incorporating the same |
| 05/20/2003 | US6564384 Combined helmet and compass |
| 05/14/2003 | EP0696357B1 Device for measuring magnetic fields |
| 05/14/2003 | CN1418036A 移动终端 Mobile terminal |
| 05/07/2003 | CN1415937A Lentoid type compass |
| 04/29/2003 | US6556007 Bearing sensor having magneto resistive elements |
| 04/17/2003 | WO2002042717A9 Method and apparatus for orienting a map display in a mobile or portable device |
| 04/16/2003 | CN2545576Y Digital director |
| 04/09/2003 | EP1300687A2 Device for measuring magnetic fields |
| 04/08/2003 | US6543146 Electronic compass and compensation of large magnetic errors for operation over all orientations |
| 04/02/2003 | CN1407416A Electronic apparatus |
| 04/01/2003 | US6539639 Monitoring accuracy of an electronic compass |
| 03/26/2003 | EP1294543A2 Multi-purpose equipment |
| 03/26/2003 | CN1103910C Method for determining correcting parameters |
| 03/25/2003 | US6536123 Three-axis magnetic sensor, an omnidirectional magnetic sensor and an azimuth measuring method using the same |
| 03/20/2003 | US20030052671 Magnetic detection element utilizing magneto-impedance effect, production method of the element, and portable equipment using the element |
| 03/19/2003 | EP1293792A2 Magnetic detection element utilizing magneto-impedance effect, production method of the element, and portable equipment using the element |
| 03/12/2003 | EP1291618A2 Electronic equipment |
| 03/06/2003 | US20030041466 Electronic equipment |
| 02/27/2003 | WO2002042717A3 Method and apparatus for orienting a map display in a mobile or portable device |
| 02/26/2003 | EP1285331A2 A method and apparatus to browse and access downloaded contextual information |
| 02/25/2003 | US6523271 Method of adjusting drive current of magnetism sensor and electronic azimuth meter |
| 02/18/2003 | US6522266 Navigation system, method and software for foot travel |
| 02/13/2003 | DE20214107U1 Combination compass for climbing has whistle and improved sight slit |
| 02/12/2003 | CN1396436A Portable electronic equipment with bearing measurement and its magnetic sensor, bearing measuring method |
| 02/11/2003 | US6516526 Pocket transit |
| 02/05/2003 | EP1281043A1 Electronic compass |
| 02/05/2003 | CN2534557Y Multi-purpose portable compass |
| 02/04/2003 | US6513252 Vehicle compass compensation |
| 01/30/2003 | US20030023380 Method of automatic continuous calibration for an electronic compass |
| 01/23/2003 | WO2003006922A1 Apparatus for determining orientation relative to a magnetic field in a three dimensional space |
| 01/22/2003 | CN1392491A Automatic directing electronic map |
| 01/21/2003 | US6510031 Magnetoresistive sensor with magnetostatic coupling to obtain opposite alignment of magnetic regions |
| 01/16/2003 | US20030013507 Portable electronic apparatus with azimuth measuring function, magnetic sensor suitable for the apparatus, and azimuth measuring method for the apparatus |
| 01/15/2003 | EP1275933A2 Portable electronic apparatus with azimuth measuring function, magnetic sensor suitable for the apparatus, and azimuth measuring method for the apparatus |
| 01/09/2003 | WO2002046695A3 Monitoring accuracy of an electronic compass |
| 12/24/2002 | US6498478 Azimuth measuring method, azimuth measuring apparatus, position measuring method, and position measuring apparatus |
| 12/19/2002 | US20020193943 Automatically orientated electronic map |
| 12/17/2002 | US6493953 Marine compass and package |
| 12/17/2002 | CA2101992C Gun scope compass apparatus |
| 12/12/2002 | US20020188416 Micro azimuth-level detector based on micro electro-mechanical systems and a method for determination of attitude |
| 12/11/2002 | EP1265052A2 Magnetic boat compass |
| 12/10/2002 | US6493651 Method and system for determining magnetic attitude |
| 12/10/2002 | US6493631 Geophysical inertial navigation system |
| 12/05/2002 | WO2002097463A2 Magnetic field sensor |
| 12/05/2002 | US20020181167 Magnetoresistive sensor with magnetostatic coupling of magnetic regions |
| 11/28/2002 | WO2002095330A1 Azimuth meter |
| 11/27/2002 | EP1260825A1 Magnetic field probe |
| 11/20/2002 | EP0918920B1 Method and apparatus for providing a magnetic direction reference |
| 11/14/2002 | WO2002090888A1 Method, device and system to show heading in a cellular network |
| 11/13/2002 | CN1094193C 数字磁罗经系统 Digital Magnetic Compass System |
| 11/07/2002 | US20020163521 Electro-optic vision systems |
| 11/07/2002 | US20020162234 Novelty item |
| 11/05/2002 | US6473979 Electronic talking compass |
| 10/24/2002 | WO2002084218A1 Inclinometer based north finder |
| 10/17/2002 | WO2002046693A3 Electronic compass and compensation of large magnetic errors |
| 10/17/2002 | US20020148104 Head stack assembly installation system for a disc drive |
| 10/15/2002 | US6466889 Method and apparatus for determining absolute position of displacement and angle sensors |
| 10/15/2002 | US6466871 Method for calibrating and verifying the attitude of a compass |
| 10/03/2002 | US20020139169 Automatic integrated mechanical and electrical angular motion detector test system |
| 10/02/2002 | EP1245930A2 Automatic integrated mechanical and electrical angular motion detector test system |