| Patents for G01C 17 - Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (3,922) |
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| 10/30/2013 | CN203259163U Electronic tester |
| 10/29/2013 | US8571826 Correction of imaging errors in alignment system with several measurement planes located in succession in the beam path |
| 10/23/2013 | CN203249625U Magnetic compass pointing true bearings |
| 10/23/2013 | CN103355865A Key ring card with compass |
| 10/23/2013 | CN102305624B Method for calibrating compass |
| 10/22/2013 | US8566052 Probe shape detection apparatus and probe shape detection method |
| 10/16/2013 | CN103353301A LED compass with foldable degree-adjustable magnifying glass |
| 10/15/2013 | US8560260 Rotation angle positioning device |
| 10/10/2013 | WO2013066891A3 System and method for improving orientation data |
| 10/08/2013 | US8554960 Input device |
| 10/08/2013 | US8554017 Imaging apparatus, data processing method, and program |
| 10/03/2013 | WO2013148585A1 System and method for determining navigational states based on a uniform external magnetic field |
| 10/02/2013 | EP2645059A1 Portable terminal with electronic compass and direction calculation method |
| 10/01/2013 | US8548742 Non-contact measurement systems for wireline and coiled tubing |
| 09/26/2013 | WO2013141752A1 Mobile radio device with a measuring device for measuring the quantity of alcohol in exhaled air |
| 09/25/2013 | EP2642248A1 Electronic device |
| 09/25/2013 | CN203216496U Electronic compass azimuth adjusting device |
| 09/25/2013 | CN103324530A Calling method and device for orientation sensors of handheld mobile equipment |
| 09/25/2013 | CN103322993A Driver for north seeker |
| 09/25/2013 | CN102589755B Direction-finding system of three-way stressometer for testing rock stress |
| 09/18/2013 | EP2639551A1 Methods and devices for determining orientation |
| 09/18/2013 | CN203203597U Magnetic compass deviation device for correcting inland ship by artificial course heading method |
| 09/18/2013 | CN103308039A Digital magnetic compass and calibration compensation method and calibration compensation system thereof |
| 09/18/2013 | CN103307950A Measuring electric wire |
| 09/12/2013 | US20130238280 System and method for north finding |
| 09/11/2013 | CN203190977U Airplane radio compass ground simulating and testing system |
| 09/11/2013 | CN101762793B 磁数据处理装置 Magnetic data processing device |
| 09/10/2013 | US8532434 Image processing method and apparatus for determining orientations based on reliabilities of a plurality of portions into which image has been divided or for determining orientations of portions of image divided by user's input so as to recognize characters for each divided portion of image, image forming apparatus, and storage medium |
| 09/10/2013 | US8531414 Bump suppression |
| 09/10/2013 | US8528381 Downhole instrument calibration during formation survey |
| 09/04/2013 | CN203180083U Wireless measurement and control antenna array device |
| 09/04/2013 | CN203177860U Electronic compass |
| 09/03/2013 | US8527201 Azimuth detecting device and azimuth detecting method |
| 08/29/2013 | DE102012101513A1 Navigational method for building, involves determining current position along traveled path by alignment with possible ways by start position with respect to determined changes in direction and/or velocity |
| 08/28/2013 | CN203154837U Sphere-shaped compass toy |
| 08/28/2013 | CN103267520A Three-axis digital compass |
| 08/22/2013 | US20130218515 Electronic device |
| 08/21/2013 | CN103256925A Multifunctional compass |
| 08/20/2013 | US8515708 Method for position-calibration of a digging assembly for electric mining shovels |
| 08/20/2013 | US8510965 Integral magnetic compass for establishing deviations in real time |
| 08/14/2013 | EP2626667A1 Travel track sensing device |
| 08/14/2013 | CN203132554U Vehicle electronic compass |
| 08/14/2013 | CN203132553U Compact north finder |
| 08/14/2013 | CN103245799A Correcting device and correcting method of multi-axis miniature motion sensor |
| 08/07/2013 | EP2624003A1 Semiconductor integrated circuit, magnetism detection device, electronic compass, and ammeter |
| 08/07/2013 | EP2623995A1 Methods and devices for detecting magnetic interference affecting the operation of a magnetometer |
| 08/07/2013 | CN203116748U Suspended noctilucent compass |
| 08/07/2013 | CN203115517U Portable combined type hard light flashlight |
| 08/07/2013 | CN103234534A Method for testing sensitivity of airplane radio compass receiver |
| 08/07/2013 | CN103234533A True bearing magnetic compass |
| 08/07/2013 | CN103234532A A digital liquid floating compass and a measurement method for attitude angles by using the same |
| 08/06/2013 | US8504296 Method for determining an item of travel direction information for a vehicle, and sensor device for a vehicle |
| 07/31/2013 | EP2620798A1 Head tracking system |
| 07/31/2013 | CN203100736U Compass |
| 07/31/2013 | CN103229020A Portable terminal with electronic compass and direction calculation method |
| 07/24/2013 | CN203083573U Calibration device of magnetic compass |
| 07/24/2013 | CN203083572U Portable geological compass |
| 07/24/2013 | CN203083571U Digital geologic compass with image collection function |
| 07/24/2013 | CN203083570U Digital geologic compass for multi-function measurement |
| 07/24/2013 | CN203083569U Digital radio compass |
| 07/23/2013 | US8494799 Dynamic compass calibration in a portable device |
| 07/23/2013 | CA2465826C Magnetometer having a dynamically adjustable bias setting and electronic vehicle compass incorporating the same |
| 07/17/2013 | CN103210277A Electronic device |
| 07/17/2013 | CN103206983A Multifunctional measuring device |
| 07/17/2013 | CN102313543B Magnetic azimuth measuring system based on giant magneto-resistance sensor, measurement method and perpendicular compensation method |
| 07/16/2013 | US8489355 Method for the determination of long-term offset drifts of acceleration sensors in motor vehicles |
| 07/16/2013 | US8489353 Methods and systems for calibrating vehicle vision systems |
| 07/16/2013 | US8485029 Apparatus and method for landing a rotary wing aircraft |
| 07/11/2013 | WO2012159771A4 Sensor or sensor measuring unit having a mechanical-electrical converter |
| 07/11/2013 | US20130177208 Generating magnetic field map for indoor positioning |
| 07/10/2013 | CN103201593A Noise pattern acquisition device and position detection apparatus provided therewith |
| 07/03/2013 | CN203037257U Direction finding compass |
| 06/27/2013 | US20130160311 Multifunction measuring device |
| 06/27/2013 | DE102011089328A1 Entfernungsmessvorrichtung Distance measuring device |
| 06/26/2013 | EP2607848A2 Thermal imaging camera with compass calibration |
| 06/26/2013 | EP2607842A2 Multifunction measuring device |
| 06/26/2013 | CN203024783U Device for displaying information of compass on vehicle instrument panel and vehicle comprising device |
| 06/26/2013 | CN103177545A Remote controller, mobile equipment and method for controlling mobile equipment by using remote controller |
| 06/26/2013 | CN103175616A Thermal imaging camera with compass calibration |
| 06/26/2013 | CN103175520A Method, device and equipment for correcting electronic compass |
| 06/26/2013 | CN103175519A Astronomical orientation device |
| 06/26/2013 | CN102141402B 电子罗经 Electronic compass |
| 06/19/2013 | CN203011386U Magnetic resistance type electronic compass |
| 06/19/2013 | CN103162677A Digital geological compass and method for measuring geological occurrence |
| 06/19/2013 | CN102102990B Direct-current sine and cosine azimuth indicator |
| 06/18/2013 | US8464433 Human-portable MEMS Azimuth sensing unit and method |
| 06/12/2013 | EP2601479A1 Pnd repositioning detector for better navigation accuracy in a car |
| 06/12/2013 | CN103148845A Satellite combined compass and method for measuring and computing azimuth angle and pitch angle |
| 06/11/2013 | US8463655 Acquisition of items offered for purchase online through a global positioning system |
| 06/11/2013 | US8463569 Method of operating a magnetic compass on a machine |
| 06/05/2013 | EP2600109A2 Method for calibration of a sensor unit and accessory comprising the same |
| 06/05/2013 | CN202974285U Special night vision compass for miners |
| 06/05/2013 | CN202973032U Multifunction field tool |
| 06/05/2013 | CN103134483A Geography true north direction gauge |
| 06/05/2013 | CN102288170B Correction method of electronic compass in underwater vehicle |
| 05/29/2013 | DE102012110468A1 Verfahren und vorrichtung zur navigation innerhalb von gebäuden Method and device for navigation inside buildings |
| 05/29/2013 | CN202956116U Compass applied to mineral exploration |
| 05/28/2013 | US8452443 Method for controlling a plurality of axes in an industrial robot system and an industrial robot system |
| 05/22/2013 | CN202947742U Compass with leveling instrument |
| 05/22/2013 | CN202947741U Hairpin type compass |