| Patents for G01C 17 - Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (3,922) |
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| 12/18/1997 | WO1997047979A1 Miniature pendulum type accelerometer combined with ac driven magnetometer |
| 12/18/1997 | WO1997047978A1 Miniature pendulum type accelerometer combined with ac driven magnetometer |
| 12/16/1997 | US5697162 Arrangement serving to indicate the direction of a given geographic location |
| 12/11/1997 | WO1997046892A2 Magnetoresistance sensor having minimal hysteresis problems |
| 12/11/1997 | DE19621320A1 Anordnung zur Erfassung und Auswertung von Gierbewegungen Arrangement for the collection and analysis of yaw |
| 12/04/1997 | WO1997045703A1 Method for determining the location of a mobile object and device for realising the same |
| 12/04/1997 | WO1997045304A1 Arrangement for detecting and evaluating yawing movements |
| 11/20/1997 | WO1997043599A1 Personal direction finding apparatus |
| 11/18/1997 | US5689445 Electronic compass and attitude sensing system |
| 11/18/1997 | US5689185 Compact device for measuring magnetic fields having magnetoresistors and an auxiliary magnetic field generator |
| 10/29/1997 | CN1163662A Process for stabilising direction indicated by magnetic compasses |
| 10/28/1997 | US5682335 Method and device for simultaneous identification and correction of errors in the measurements of a magnetometer |
| 10/28/1997 | US5682332 Vision imaging devices and methods exploiting position and attitude |
| 09/30/1997 | CA2120195C Method and apparatus for calibrating a vehicle compass system |
| 09/27/1997 | CA2201273A1 The marine nautical calculator |
| 09/24/1997 | CN2263333Y Electromagnetic compass |
| 09/23/1997 | US5669148 Altered light navigation device |
| 09/18/1997 | WO1997034125A1 Process for determining the direction of the earth's magnetic field |
| 09/09/1997 | US5664335 For correcting vehicle generated internal varying magnetic fields |
| 08/27/1997 | EP0791169A1 Process for stabilising the direction indicated by magnetic compasses |
| 08/20/1997 | CN1157408A Double chord four guide idler symmetric spokeless wheel differential mechanism |
| 08/13/1997 | EP0788573A1 Valves |
| 08/12/1997 | US5655308 Illuminating navigation device |
| 08/05/1997 | US5654635 Method and device for simultaneous identification and correction of errors due to magnetic perturbations and to misalignments in the measurements of a magnetometer |
| 07/29/1997 | US5652512 Advanced digital flux gate magnetometer |
| 07/16/1997 | CN2257921Y Liu-Ren type compass |
| 07/15/1997 | US5647134 Compass for mobile satellite antennas |
| 07/08/1997 | US5644851 To compensate for effect of a deviating magnetic field in a vehicle compass |
| 06/10/1997 | US5637813 Pendular sensor with unlimited rotation along its longitudinal axis |
| 06/04/1997 | EP0777127A2 Magnetism detecting device, magnetism sensor, terrestrial-magnetism detecting azimuth sensor, and attitude controlling sensor |
| 06/04/1997 | CN2255608Y Instrument for maijia presenting onself before (a monarch) |
| 06/04/1997 | CN2255607Y Zhangheng southward pointing cart |
| 05/29/1997 | WO1997019321A1 System for determining time or direction for prayer |
| 05/27/1997 | US5632092 For use in a vehicle |
| 05/21/1997 | CN2254545Y Compass for blind person |
| 04/24/1997 | DE19643153A1 Magnetic sensor with magnetic core on which is wound excitation coil |
| 04/16/1997 | CN2252329Y Semi-suspension type miniature magnetic compass |
| 04/09/1997 | CN1147085A Method for correction of magnetic deviation in single course and magnetic value retaining deflector therewith |
| 04/03/1997 | DE19609762C1 Determination of direction of perturbed geomagnetic field by compass |
| 04/01/1997 | US5616860 Azimuth indicator equipped with anemometer capable of indicating blowing direction of wind |
| 03/19/1997 | CN1145481A Watch comprising arrangement for indicating predetermined geographic locality |
| 03/12/1997 | EP0611439B1 Reference pointer for a compass display |
| 03/12/1997 | CN1144923A Arrangement serving to indicate direction of given geographic location |
| 03/06/1997 | WO1997008513A1 Method of stabilizing the horizon of magnetic compasses |
| 02/25/1997 | US5606414 Interferometric ship's heading reference system |
| 02/20/1997 | DE19532122C1 Verfahren zur Horizontstabilisierung von Magnetkompassen A method for stabilizing the horizon of magnetic compasses |
| 02/19/1997 | CN2247796Y Second orientator fo compass |
| 02/13/1997 | WO1997005452A1 Device for finding the inclination and cardinal points of a surface |
| 01/29/1997 | CN2245882Y Watchband |
| 01/21/1997 | US5596553 Digital sundial |
| 01/21/1997 | US5596551 Watch comprising an arrangement for detecting the direction of the terrestrial magnetic north |
| 01/01/1997 | CN2244182Y Antique imitation southward pointing cart |
| 12/31/1996 | US5588444 Human range of motion measurement system |
| 12/19/1996 | WO1996041128A1 Inclination-compensating display device for a compass |
| 12/19/1996 | WO1996041127A1 Tilt-compensating indicator device for a compass |
| 12/19/1996 | CA2223985A1 Inclination-compensating display device for a compass |
| 12/19/1996 | CA2222479A1 Tilt-compensating indicator device for a compass |
| 12/17/1996 | CA2073002C Navigation aid |
| 12/12/1996 | DE19529976A1 Inclination-compensated indicating unit |
| 12/11/1996 | EP0746877A1 Integrated digital magnetic field detectors |
| 12/11/1996 | EP0664878B1 Process for determining a vehicle yaw angle |
| 12/10/1996 | US5583436 Miniature magnetic field sensor with compact magnetization coil |
| 12/10/1996 | US5581899 Process for compensating a magnetic interference field in a vehicle |
| 11/20/1996 | EP0743576A1 Device indicating the direction of a given geographical location |
| 11/19/1996 | US5576687 Vehicle information display |
| 11/05/1996 | US5572217 Compass |
| 10/23/1996 | CN1133978A Watch comprising arrangement for detecting direction of terrestrial magnetic north |
| 10/22/1996 | US5566462 True magnetic compass |
| 10/16/1996 | EP0737866A1 Method and device for simultaneously identifying and correcting measurement errors of a magnetometer |
| 10/15/1996 | US5564194 Geomagnetic direction sensor |
| 10/01/1996 | US5560115 Gimbaled magnetometer with inductive coupling |
| 10/01/1996 | US5560114 Arrangement for compensating for magnetic declination in an optically readable bearing compass |
| 08/14/1996 | CN1128861A Automatic directional device |
| 08/13/1996 | US5546310 Ghebleh bearing indicator |
| 08/07/1996 | CN2232573Y Compound magnetic compass |
| 07/24/1996 | EP0722601A1 Electro-optic vision systems which exploit position and attitude |
| 07/11/1996 | WO1996021139A1 Device for finding geographical targets and its use |
| 07/10/1996 | EP0721155A1 Watch comprising a device indicating a predetermined geographical location |
| 06/26/1996 | EP0718598A1 Correction of the errors of a magnetometer |
| 06/25/1996 | US5528837 Adjustable magnetic compass |
| 06/19/1996 | CN2229651Y Compass |
| 06/12/1996 | EP0676035A4 Compensation system for electronic compass. |
| 05/23/1996 | WO1996015424A1 Process for stabilising the direction indicated by magnetic compasses |
| 05/22/1996 | EP0713162A1 Watch with device for determining the direction of earth magnetic north |
| 05/21/1996 | US5519318 Triaxial magnetic heading sensing apparatus having magnetaresistors and nulling coils |
| 05/14/1996 | US5517430 Real-time digital orientation device |
| 05/09/1996 | WO1996013639A1 Valves |
| 05/09/1996 | CA2203800A1 Valves |
| 04/30/1996 | US5511319 Vehicle compass correction circuit |
| 04/03/1996 | EP0704047A1 Direction indicator for navigation |
| 03/16/1996 | CA2132169A1 True magnetic compass |
| 03/14/1996 | WO1996008041A1 Integrated digital magnetic field detectors |
| 03/07/1996 | WO1996007078A1 Compass device |
| 03/07/1996 | DE4431299A1 Integrierte Digitale Magnetfeld-Detektoren Integrated Digital magnetic field detectors |
| 02/29/1996 | DE4429832A1 Magnetic compass for e.g. installation in motor vehicle |
| 02/28/1996 | EP0376977B1 Frequency difference digital compass and magnetometer |
| 02/14/1996 | EP0696720A1 Pendular sensor having unlimited rotation about its roll axis |
| 02/14/1996 | EP0696357A1 Device for measuring magnetic fields |
| 02/14/1996 | EP0696356A1 Device for measuring magnetic fields |
| 02/08/1996 | DE4439945C1 Direction display stabilisation system for magnetic compass |