| Patents for G01C 17 - Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (3,922) |
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| 10/02/2002 | CN2514313Y Automatic operating apparatus for steering engine |
| 09/25/2002 | EP1242784A1 Digital compass with multiple sensing and reporting capability |
| 09/25/2002 | EP1163651A4 Rearview mirror assembly with internally mounted compass sensor |
| 09/18/2002 | CN1369689A Declinator with reluctance component |
| 09/06/2002 | WO2001091978B1 Multi-purpose equipment |
| 08/28/2002 | CN2508220Y Needle of directing Mecca |
| 08/21/2002 | CN2506981Y 简易式指北针 Simple style compass |
| 08/21/2002 | CN2506980Y Compass viewing device |
| 08/21/2002 | CN1089433C Process for determining the direction of the earth's magnetic field |
| 08/15/2002 | WO2002037827A3 Method and apparatus for motion tracking of an articulated rigid body |
| 08/15/2002 | US20020111762 Method and system for determining magnetic attitude |
| 08/14/2002 | EP0900361B1 Personal direction finding apparatus |
| 08/13/2002 | US6430825 Magnetic compass pointer with bearing support |
| 08/08/2002 | US20020104224 Right reading magnetic compass |
| 08/07/2002 | CN2504602Y Microcomputerized photoelectric indicating north-stabilized indicator |
| 08/07/2002 | CN1088858C Watch comprising arrangement for indicating predetermined geographic locality |
| 08/06/2002 | US6429652 System and method of providing a resonant micro-compass |
| 08/06/2002 | US6427349 Compensation system for electronic compass |
| 08/01/2002 | US20020103610 Method and apparatus for motion tracking of an articulated rigid body |
| 08/01/2002 | US20020100178 Electronic compass and compensation of large magnetic errors for operation over all orientations |
| 07/25/2002 | US20020095803 Compass ruler measurement device |
| 07/24/2002 | CN1088186C Electronic compass |
| 07/18/2002 | US20020092188 Monitoring accuracy of an electronic compass |
| 07/16/2002 | US6421628 Signal handling device |
| 07/10/2002 | CN2499797Y Sensing device |
| 07/10/2002 | CN2499796Y 透镜式指北针 Lens type compass |
| 07/10/2002 | CN1358269A 光学装置 Optical device |
| 07/09/2002 | US6418376 Method and apparatus to maintain compass heading with a moveable sensor mounting |
| 07/04/2002 | US20020083605 Compensation system for electronic compass |
| 07/04/2002 | US20020083604 Low profile compass with removable protective cover and magnetic bull's eye alignment system |
| 07/02/2002 | US6414696 Graphical user interfaces for computer vision systems |
| 06/18/2002 | US6408251 Calibrating a magnetic compass with an angular rate gyroscope and a global positioning system receiver |
| 06/13/2002 | WO2002046695A2 Monitoring accuracy of an electronic compass |
| 06/13/2002 | WO2002046693A2 Electronic compass and compensation of large magnetic errors |
| 06/13/2002 | CA2431564A1 Monitoring accuracy of an electronic compass |
| 06/06/2002 | US20020066194 Electronic talking compass |
| 06/05/2002 | EP0847518B1 Method of stabilizing the horizon of magnetic compasses |
| 06/04/2002 | US6401047 System using information on a communications bus to eliminate magnetic noise |
| 05/30/2002 | WO2002042717A2 Method and apparatus for orienting a map display in a mobile or portable device |
| 05/30/2002 | WO2001091978A3 Multi-purpose equipment |
| 05/30/2002 | WO2001088477A3 Navigation system, method and software for foot travel |
| 05/30/2002 | CA2436782A1 Method and apparatus for orienting a map display in a mobile or portable device |
| 05/29/2002 | EP0920637A4 Navigation system and method |
| 05/22/2002 | EP1206680A1 Optical device |
| 05/16/2002 | US20020056202 Three-axis magnetic sensor, an omnidirectional magnetic sensor and an azimuth measureing method using the same |
| 05/15/2002 | CN1349109A Three axial magnetic sensor, all direction magnetic sensor, and direction testing method therewith |
| 05/10/2002 | WO2002037827A2 Method and apparatus for motion tracking of an articulated rigid body |
| 05/07/2002 | US6385133 Electronic apparatus with azimuth meter and azimuth measuring method in this electronic apparatus |
| 05/07/2002 | CA2109717C Attitude sensor |
| 05/01/2002 | CN1346967A Magnetic compass |
| 04/17/2002 | CN1083122C Arrangement serving to indicate direction of given geographic location |
| 04/02/2002 | US6366866 Coordinates detecting apparatus for independently correcting coordinates |
| 04/02/2002 | US6366856 Method and apparatus for orienting a map display in a mobile or portable device |
| 03/28/2002 | WO2001088687A3 A method and apparatus to browse and access downloaded contextual information |
| 03/28/2002 | US20020036496 Azimuth measuring method, azimuth measuring apparatus, position measuring method, and position measuring apparatus |
| 03/28/2002 | US20020035791 Vehicle compass system with continuous automatic calibration |
| 03/27/2002 | EP0788573B1 Valves |
| 03/26/2002 | US6363250 Arrangement and a method relating to cellular radio communication systems |
| 03/19/2002 | US6357128 Low profile compass with removable protective cover and magnetic bull's eye alignment system |
| 03/12/2002 | US6356851 Accelerated calibration for electronic compass module |
| 03/06/2002 | CN1080414C Method of stabilizing the horizon of magnetic compasses |
| 03/06/2002 | CN1080413C Process for stabilising direction indicated by magnetic compasses |
| 02/28/2002 | US20020023362 Adjusting method of electronic azimuth meter, adjusting system of electronic azimuth meter, magnetic field generating apparatus, electronic azimuth meter and electronic timepiece having electronic azimuth meter |
| 02/20/2002 | CN1336533A Electric compass and its regulating method and system, magnetic field producing device and electric time piece |
| 02/07/2002 | US20020014016 Method of adjusting drive current of magnetism sensor and electronic azimuth meter |
| 02/06/2002 | EP1178284A2 Method and system for adjusting an electronic azimuth meter |
| 02/06/2002 | CN1334440A Method of adjusting drive current of magnetic sensor and electronic azimuth finder |
| 01/30/2002 | EP1176390A2 Method of adjusting drive current of magnetism sensor and electronic azimuth meter |
| 01/30/2002 | EP0972208A4 Magnetometer with coil and high permeabiliy core |
| 01/17/2002 | DE10031244A1 Position and location determination system for e.g. truck with trailer, has computerized evaluation unit to evaluate measurement values of single differential GPS navigation receiver, compass and bend angle sensor |
| 01/16/2002 | CN1077987C Watch comprising arrangement for detecting direction of terrestrial malgnetic north |
| 01/09/2002 | CN2470912Y Voice compass |
| 01/02/2002 | CN2468842Y Compass used in vehicle |
| 01/01/2002 | US6336081 Geomagnetic field direction measuring system |
| 12/26/2001 | CN2468011Y Improved geographic compass mechanism |
| 12/19/2001 | EP1164356A1 System and method for estimating sensor errors |
| 12/19/2001 | EP1163651A1 Rearview mirror assembly with internally mounted compass sensor |
| 12/06/2001 | WO2001091978A2 Multi-purpose equipment |
| 12/06/2001 | CA2412098A1 Multi-purpose equipment |
| 12/05/2001 | CN2463790Y Mariner's reflecting magneitc compass |
| 12/05/2001 | CN1325017A Miniature navigation system based on micro electromechanical techn. |
| 11/28/2001 | CN1323979A Calibration mechanism, electron compass having said mechanism and electron clock |
| 11/22/2001 | WO2001088687A2 A method and apparatus to browse and access downloaded contextual information |
| 11/22/2001 | WO2001088477A2 Navigation system, method and software for foot travel |
| 11/22/2001 | US20010043155 Electronic azimuth meter and electronic time piece having electronic azimuth meter |
| 11/22/2001 | US20010042314 Correcting mechanism of electronic azimuth meter, electronic azimuth meter having thereof and electronic time piece with electronic azimuth meter |
| 11/14/2001 | EP1154234A2 Correcting mechanism of electronic azimuth meter, electronic azimuth meter and electronic time piece with electronic azimuth meter |
| 11/14/2001 | EP0830568B1 Inclination-compensating display device for a compass |
| 11/08/2001 | WO2001084079A1 Electronic compass |
| 10/23/2001 | US6307556 Augmented reality vision systems which derive image information from other vision system |
| 10/18/2001 | US20010030537 Magnetic field detection device |
| 10/17/2001 | EP1146346A1 Magnetic field detection device |
| 10/17/2001 | CN1317698A Detector for magnetic field |
| 10/16/2001 | US6301794 Vehicle compass system with continuous automatic calibration |
| 09/27/2001 | DE10026390C1 Direction display method defines direction of each geographic location using circle or arc segment divided into number of sections |
| 09/18/2001 | US6292137 Direction indicating compasses |
| 09/12/2001 | CN1312459A Reflecting magnetic compass for ship |
| 09/11/2001 | US6286222 System for eliminating magnetic noise generated by vehicle accessories |
| 09/11/2001 | US6286221 System using magnetic signatures to detect a vehicle event |
| 09/11/2001 | US6286220 Reflective compass device |