| Patents for G01C 17 - Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (3,922) |
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| 04/08/2014 | CA2564156C System and method for approximating an editable surface |
| 04/02/2014 | CN203519010U Observation sighting device for geographical compass |
| 04/02/2014 | CN103697913A Rotary table fixture for testing aircraft course precision |
| 04/02/2014 | CN103697912A Rotary table fixture for testing aircraft course precision |
| 04/02/2014 | CN102356328B Magnetic detection device |
| 04/01/2014 | US8688398 Method and apparatus for robot calibrations with a calibrating device |
| 04/01/2014 | US8688397 Error calculation method for angle detection device |
| 04/01/2014 | US8688396 Targeted data collection for positioning systems |
| 04/01/2014 | US8683707 Magnetically modulated location system |
| 03/27/2014 | US20140082951 Orientation device including means for detecting that the device is lying flat on a support |
| 03/26/2014 | EP2710333A1 Method for remotely determining an absolute azimuth of a target point |
| 03/26/2014 | CN103674000A Real-time electronic compass calibration algorithm |
| 03/25/2014 | US8677640 Magnetometer accuracy and use |
| 03/20/2014 | WO2014018461A3 Sky polarization sensor for absolute orientation determination |
| 03/20/2014 | US20140081592 System and Method for Magnetic Field Data Compression |
| 03/19/2014 | EP2708848A2 System and method for magnetic field data compression |
| 03/18/2014 | US8676528 System and method for calibrating an accelerometer |
| 03/18/2014 | US8676527 Industrial machine |
| 03/13/2014 | US20140074429 Using Clustering Techniques to Improve Magnetometer Bias Estimation |
| 03/12/2014 | CN203479309U Vehicle-mounted compass and automobile |
| 03/12/2014 | CN103635778A Navigation in buildings with rectangular floor plan |
| 03/12/2014 | CN103630125A Electronic compass calibration reminding system based on gyroscope and realization method thereof |
| 03/05/2014 | EP2703779A1 Stabilizing Orientation Values Of An Electronic Device |
| 03/05/2014 | EP2703778A1 Controlling sensor operation in an electronic device |
| 03/05/2014 | CN203464935U Compass |
| 03/05/2014 | CN103620342A Reducing power consumption or error of digital compass |
| 03/05/2014 | CN103618816A Electronic compass system with automatic correction function and implementation method thereof |
| 03/04/2014 | US8666696 Reed testing device for single-reed instrument |
| 03/04/2014 | US8666556 Systems and methods for dynamic feedforward |
| 02/26/2014 | EP2699918A1 Flow valve and method of manufacturing such a valve |
| 02/20/2014 | WO2014028789A1 Dynamic magnetometer calibration |
| 02/20/2014 | WO2014028785A1 Dynamic magnetometer calibration |
| 02/18/2014 | US8652699 Fuel cell system |
| 02/12/2014 | CN103575259A 二维电子罗盘模块 Two-dimensional electronic compass module |
| 02/11/2014 | US8649991 Method, device and system for calibrating positioning device |
| 02/04/2014 | US8643494 Postural state attitude monitoring, caution, and warning systems and methods |
| 02/04/2014 | US8640351 Multifunction measuring device |
| 01/30/2014 | WO2014018461A2 Sky polarization sensor for absolute orientation determination |
| 01/30/2014 | WO2014015755A1 Magnetometer direction angle correction method and magnetometer |
| 01/29/2014 | EP2690399A1 Method for correcting orientation of magnetometer and magnetometer |
| 01/29/2014 | EP2689211A1 Method for updating a value of orientation with respect to north or for improving the initialization of such a value in an apparatus comprising an image sensor |
| 01/29/2014 | CN203414084U High-precision north seeker device |
| 01/28/2014 | USRE44737 Three-dimensional position calibration of audio sensors and actuators on a distributed computing platform |
| 01/28/2014 | US8639470 Digital cumulative spectrum analysis apparatus and method for direction finding and location |
| 01/22/2014 | CN103528575A Three-dimensional AMRMEMS (Anisotropic Magneto Resistive Micro-Electro-Mechanical System) three-axis magnetometer structure and magnetometer |
| 01/22/2014 | CN103528565A Direction display device and direction display system |
| 01/21/2014 | US8635042 Semi-automatic device calibration |
| 01/21/2014 | US8634952 Fan control method and medium storing fan control program |
| 01/16/2014 | DE102013011388A1 Three-dimensional planar magnetic sensor, useful in satellite navigation system, comprises three magnetic sensor, and switching circuit electrically connected with magnetic sensors to provided current or voltage to magnetic sensors |
| 01/15/2014 | CN103513205A Method for correcting magnetic field sensor signal and automobile navigation system |
| 01/08/2014 | EP2682714A2 Direction display device and direction display system |
| 01/08/2014 | CN102510994B Geomagnetism detection device |
| 01/07/2014 | US8626465 Calibrating sensor measurements on mobile devices |
| 01/03/2014 | WO2014004063A1 Methods and apparatus for adjusting heading direction in a navigation system |
| 01/03/2014 | WO2014001470A1 Method for the continuous calibration of a sensor |
| 01/03/2014 | WO2014000053A1 An electronic orientation monitor and an associated method |
| 01/01/2014 | EP2678637A1 Measurement device and method for measuring |
| 01/01/2014 | CN103487042A Balancing device of azimuth circle |
| 01/01/2014 | CN103487002A Observation diopter of azimuth circle |
| 12/26/2013 | US20130345972 Method and system for compensating for soft iron magnetic disturbances in a heading reference system |
| 12/25/2013 | EP2677275A2 Method and system for compensating for soft-iron magnetic disturbances in a heading reference system |
| 12/19/2013 | WO2013188776A1 Determining and correcting error of positional vector-valued sensors using a fixed angle calibration process |
| 12/19/2013 | WO2013187584A1 Clinometer and method for measuring strike and dip angle using same |
| 12/19/2013 | US20130338955 Determining and Correcting Error of Positional Vector-Valued Sensors Using a Fixed Angle Calibration Process |
| 12/18/2013 | CN203349831U Virtual coordinate pointer |
| 12/18/2013 | CN103444279A Outdoor direction identifying method |
| 12/18/2013 | CN102193073B Magnetic data processing device, method, and program |
| 12/17/2013 | US8607613 Method for independent alignment of an inertial unit for an onboard instrument of an aircraft |
| 12/11/2013 | CN203337154U LED compass with magnifying lens capable of being folded and dispatched |
| 12/11/2013 | CN203337153U Triaxial digital compass |
| 12/11/2013 | CN203337152U Multifunctional field geological compass |
| 12/11/2013 | CN103438876A Magnetic heading system based on digital magnetic flux gate |
| 12/05/2013 | US20130325316 System and method for determining orientation relative to earth |
| 12/04/2013 | EP2669628A1 System and method for operating a mobile device having a magnetometer |
| 12/04/2013 | EP2669627A1 System and method for calibrating a magnetometer on a mobile device |
| 12/04/2013 | EP2669626A1 System and method for calibrating a magnetometer on a mobile device |
| 12/04/2013 | EP2669625A1 System and method for evaluating a calibration of a magnetometer on a mobile device |
| 12/04/2013 | CN203323761U High-precision compass circuit of intelligent terminal |
| 12/04/2013 | CN102494679B Superconducting magnetic levitation based north-seeking device |
| 12/03/2013 | US8600691 Gyroscope system magnetic field error compensation |
| 12/03/2013 | US8600523 Control of an operation of a coordinate measuring device |
| 11/28/2013 | WO2013066891A4 System and method for improving orientation data |
| 11/27/2013 | EP2667153A1 System and method for determining a magnetic field using a mobile device |
| 11/27/2013 | CN203310418U Device for intelligently correcting deviation of magnetic compass |
| 11/27/2013 | CN203310417U Digital compass redisplay instrument |
| 11/27/2013 | CN203310416U Steering compass repeater |
| 11/27/2013 | CN203310341U Measuring wire |
| 11/26/2013 | US8594971 Deduced reckoning navigation without a constraint relationship between orientation of a sensor platform and a direction of travel of an object |
| 11/26/2013 | US8594964 Method for compensating a measured value offset |
| 11/20/2013 | CN203298771U Digital geological compass with laser alignment |
| 11/12/2013 | US8583374 Systems and methods for route summarization |
| 11/06/2013 | EP2660561A1 Geomagnetic device |
| 11/05/2013 | USRE44582 Magnetic data processing device |
| 11/05/2013 | US8577637 System and method of magnetic compass calibration |
| 11/05/2013 | US8577636 Azimuth calculation program and electronic compass |
| 10/31/2013 | WO2013160286A1 Method for estimating the position and orientation using an inertial measurement unit fixed to a moving pedestrian |
| 10/31/2013 | US20130289915 Automatic compass system for vehicle |
| 10/30/2013 | EP2657647A1 Method for estimating the position and orientation using an inertial measurement unit fixed to a moving pedestrian |
| 10/30/2013 | EP2656005A1 Enhanced position measurement systems and methods |
| 10/30/2013 | CN203259164U Multifunctional compass |