| Patents for G01C 17 - Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (3,922) |
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| 04/20/2011 | CN201798133U Ring |
| 04/19/2011 | US7930125 System and method for positioning a coordinate system in relation to a workpiece on a measurement machine |
| 04/19/2011 | US7928862 Display of hover and touchdown symbology on head-up display |
| 04/19/2011 | US7926193 Nanowire magnetic sensor |
| 04/14/2011 | US20110087451 Compass calibration system and method |
| 04/13/2011 | CN201795803U Device for levelly positioning and measuring communication antenna |
| 04/13/2011 | CN201795802U Compass |
| 04/13/2011 | CN102012625A Derivation of 3d information from single camera and movement sensors |
| 04/12/2011 | US7921572 Accuracy indications for an electronic compass in a portable device |
| 04/07/2011 | DE102006010333B4 Lawinenkundlicher Kompaß Lawinenkundlicher Compass |
| 04/06/2011 | EP1643212B1 Azimuth measurement device and azimuth measurement method |
| 04/06/2011 | CN102005105A Marine disaster early-warning device based on time series similarity matching |
| 04/06/2011 | CN101144721B Mobile terminal device and method |
| 04/05/2011 | US7920982 Optical distortion calibration for electro-optical sensors |
| 03/31/2011 | WO2011037118A1 Geomagnetism sensing device |
| 03/31/2011 | WO2011037117A1 Geomagnetism detection device |
| 03/31/2011 | US20110077902 servo control circuit for detecting analytes via nanoparticle-labeled substances with electromagnetic read-write heads |
| 03/31/2011 | US20110077889 System and method of magnetic compass calibration |
| 03/30/2011 | CN101453693B Multi-element information fusion and wireless transmission system based on GIS platform |
| 03/29/2011 | US7916138 Electro-optic vision systems |
| 03/24/2011 | US20110067479 System and method for calibrating a rotary absolute position sensor |
| 03/23/2011 | CN201774573U Compass mobile phone |
| 03/23/2011 | CN201773941U Handheld direction-finding antenna with internal electronic compass |
| 03/23/2011 | CN201773183U Portable radio direction finding device |
| 03/23/2011 | CN201772878U Multi-purpose leveling instrument |
| 03/22/2011 | US7912662 System and method for improving the distortion tolerance of an electromagnetic tracking system |
| 03/22/2011 | US7912640 Mobile map display apparatus, map display system and map display method |
| 03/22/2011 | US7912573 Using metric to evaluate performance impact |
| 03/17/2011 | US20110066392 Systems and methods for calibration of gyroscopes and a magnetic compass |
| 03/17/2011 | US20110065460 Cellular phone having navigation device, correcting value initializing method, and navigation function |
| 03/17/2011 | US20110063167 Using magnetometer with a positioning system |
| 03/16/2011 | EP2295933A1 Systems and methods for calibration of gyroscopes and a magnetic compass |
| 03/16/2011 | CN201764972U Computer digital compass |
| 03/16/2011 | CN201764971U Compass with LED lamp and tape measure |
| 03/16/2011 | CN101986765A Singlechip-based low-power consumption networking positioning instrument |
| 03/16/2011 | CN101487707B Portable electronic device with correctable azimuth angle and its correction method |
| 03/15/2011 | US7908111 Sensor and method for measuring position and speed |
| 03/15/2011 | US7905026 Compass device and method for a compass device |
| 03/09/2011 | CN201757649U Compass with a 3D laser positioning device |
| 03/09/2011 | CN101477181B Magnetometer having a dynamically adjustable bias setting and electronic vehicle compass incorporating the same |
| 03/08/2011 | US7904267 Adaptive resolver compensation controller |
| 03/03/2011 | US20110054834 Determining user compass orientation from a portable device |
| 03/01/2011 | US7895759 Electronic device and method for indicating direction in electronic device |
| 02/24/2011 | US20110045848 Bearing Calculator and Error Correction Method |
| 02/23/2011 | EP2286183A1 Method for operating a display device driven by at least one stepping motor |
| 02/22/2011 | US7895002 Device comprising a sensor arrangement and an updater |
| 02/22/2011 | US7891103 Magnetometer accuracy and use |
| 02/22/2011 | US7891102 Nanowire magnetic compass and position sensor |
| 02/16/2011 | CN201748926U South-pointing chariot |
| 02/16/2011 | CN201748925U Liquid level type geological compass |
| 02/16/2011 | CN201748920U Hanging weight geological compass |
| 02/16/2011 | CN101975573A Electromagnetic induction north seeker |
| 02/16/2011 | CN101149262B Method, apparatus, and medium for calibrating compass sensor, method ,apparatus and medium for measuring azimuth |
| 02/15/2011 | US7890291 Method and device for detecting a substantially invariant rotation axis |
| 02/09/2011 | EP1618351B1 System and method for compensating for magnetic disturbance of a compass by a moveable vehicle accessory |
| 02/09/2011 | CN201740530U House lighting and orientation admeasuring apparatus |
| 02/09/2011 | CN201740529U Compass |
| 02/09/2011 | CN201740528U LED (light-emitting diode) compass |
| 02/09/2011 | CN101971606A Device, method, and system for displaying data recorded with associated position and direction information |
| 02/09/2011 | CN101629823B Correction method for the deviation of magnetic compass |
| 02/09/2011 | CN101487705B Portable electronic device with electronic compass and electronic compass emendation method |
| 02/08/2011 | US7885784 Object-tracking and situation-analysis system |
| 02/08/2011 | US7883477 Human body backbone measuring/displaying system |
| 02/03/2011 | US20110029279 method for position-calibration of a digging assembly for electric mining shovels |
| 02/02/2011 | CN201732859U Antenna for automatically detecting position angles and pitch angles |
| 01/26/2011 | EP2277057A1 System for measuring a magnetic field comprising a three-axis sensor for measuring a magnetic field that is able to move together with a carrier that disrupts the measurements, and associated method |
| 01/26/2011 | CN201726467U Digital camera with digital compass function |
| 01/26/2011 | CN201725032U Hand-held electronic reader with navigation function |
| 01/26/2011 | CN201724677U Simple compass |
| 01/26/2011 | CN101954884A Anti-dazzle vehicle interior mirror system with composite information display |
| 01/25/2011 | US7876438 Apparatus and methods for determining overlay and uses of same |
| 01/20/2011 | US20110015888 Magnetic data processing device, magnetic data processing method, and magnetic data processing program |
| 01/19/2011 | CN101067554B Apparatus and method of compensating for an attitude error of an earth magnetic sensor |
| 01/18/2011 | US7873487 Position detecting device and method |
| 01/18/2011 | US7873241 Method for superimposing optical information in a scanning microscope |
| 01/18/2011 | US7870678 Hybrid sensor module and sensing method using the same |
| 01/13/2011 | US20110010121 Magnetic data processing device, magnetic data processing method, and magnetic data processing program |
| 01/12/2011 | CN201708862U Novel digital camera |
| 01/12/2011 | CN101945258A Video monitoring acquisition equipment and monitoring system |
| 01/11/2011 | US7869970 Probe straightness measuring method |
| 01/11/2011 | US7869969 Defect review apparatus and method of reviewing defects |
| 01/05/2011 | EP2270427A1 Method for compensating disturbances due to a step motor in an electronic compass |
| 01/05/2011 | EP2268999A1 System and method for determining parameters representing orientation of a solid in movement subject to two vector fields |
| 01/05/2011 | CN201692628U Multifunctional rotary gyro with compass and universal time rotary disc |
| 01/05/2011 | CN101933707A Pen-hanging type travel article subassembly |
| 01/04/2011 | US7865323 Calibration program and electronic compass |
| 01/04/2011 | US7861422 Skyline imaging system for solar access determination |
| 12/29/2010 | CN201688852U Road data acquisition system for traffic accidents |
| 12/29/2010 | CN201688845U Novel compass |
| 12/29/2010 | CN101932907A Method for operating a display device driven by at least one stepping motor |
| 12/29/2010 | CN101270986B Balancing device with direction initialization function |
| 12/28/2010 | US7857772 Stride-monitoring device |
| 12/23/2010 | US20100324862 Azimuth processing device, azimuth processing method, azimuth processing program, direction finding device, tilt offset correcting method, azimuth measuring method, compass sensor unit, and portable electronic device |
| 12/22/2010 | EP2265045A1 Electronic entity and chip card for an electronic entity |
| 12/22/2010 | CN1948905B Magnetic sensor control device |
| 12/22/2010 | CN101922933A Electronic device |
| 12/16/2010 | US20100313434 Electronic device and method for indicating direction in electronic device |
| 12/15/2010 | CN201672925U 罗盘 Compass |
| 12/15/2010 | CN1989392B System, method and device for improving the readability of an electronic compass |
| 12/14/2010 | US7853423 Image forming apparatus and method for correcting position displacement |