| Patents for G01C 17 - Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes (3,922) |
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| 08/10/2004 | US6775109 Magnetoresistive sensor with magnetostatic coupling of magnetic regions |
| 08/05/2004 | WO2004065965A2 Inertial north finder |
| 08/05/2004 | US20040153272 Vertical calibration method for a wire cut electric discharge machine |
| 08/05/2004 | DE10330101A1 Sensor für schwache Magnetfelder, für den die Technologie der gedruckten Leiterplatten verwendet wird, und Verfahren zu seiner Herstellung Sensor for weak magnetic fields, for which the technology of printed wiring boards is used, and process for its preparation |
| 08/04/2004 | EP1443305A1 Portable device for indicating specific location and controlling method thereof |
| 07/29/2004 | WO2004063667A1 Attitude angle processor and attitude angle processing method |
| 07/29/2004 | US20040147244 Method, device and system to show heading in a cellular network |
| 07/27/2004 | US6768957 Electronic azimuth meter, correcting mechanism for electronic azimuth meter, and electronic timepiece having electronic azimuth meter |
| 07/22/2004 | WO2004061391A2 Methods and apparatus for automatic magnetic compensation |
| 07/22/2004 | US20040143413 System for measuring the effect of bearing errors in an active device |
| 07/21/2004 | CN1514258A Weak magnetic field sensor using printed circuit board technology and its manufacturing method |
| 07/15/2004 | US20040135576 Magnetic azimuth measurement apparatus |
| 07/08/2004 | US20040133349 Apparatus and method of compensating for an attitude error of an earth magnetic sensor |
| 07/06/2004 | US6760679 Method and apparatus for positional calibration of a thermal analysis instrument |
| 07/06/2004 | US6760678 Electronic compass |
| 07/06/2004 | US6759845 Weak-magnetic field sensor using printed circuit board manufacturing technique and method of manufacturing the same |
| 07/01/2004 | US20040124836 Weak-magnetic field sensor using printed circuit board technology and method of manufacturing the same |
| 07/01/2004 | US20040123475 Vehicle compass system with continuous automatic calibration |
| 07/01/2004 | US20040123474 Methods and apparatus for automatic magnetic compensation |
| 06/30/2004 | CN2622677Y 镭射罗盘 Laser Compass |
| 06/23/2004 | CN1506656A Directino indicator |
| 06/22/2004 | US6753682 Weak-magnetic field sensor using printed circuit board manufacturing technique and method of manufacturing the same |
| 06/17/2004 | WO2003100576A3 Distributed motion prediction network |
| 06/17/2004 | US20040111907 Direction indicating device |
| 06/17/2004 | US20040111906 Azimuth meter |
| 06/16/2004 | CN2620856Y Southward pointing cart |
| 06/16/2004 | CN2620855Y Southward pointing cart capable of indicating running direction |
| 06/10/2004 | US20040111230 Method of detecting a pattern and an apparatus thereof |
| 06/09/2004 | CN2620248Y Automatic liquid-filling exhausting compasses |
| 06/09/2004 | CN1502971A Digital compass |
| 06/03/2004 | US20040107064 Device and method for automatically detecting a calibration termination for a geomagnetic sensor |
| 06/02/2004 | EP1424540A2 Device and method for automatically detecting a calibration termination for a geomagnetic sensor |
| 06/02/2004 | CN2619284Y Telescope with north pointer in visible field |
| 06/02/2004 | CN1501050A Apparatus and method of compensating for the attitude change of an earth magnetic sensor |
| 06/02/2004 | CN1152237C Miniature navigation system based on micro electromechanical technology |
| 06/01/2004 | US6742270 Luminescent indication compass |
| 05/27/2004 | US20040098873 Electronic compass apparatus and method |
| 05/27/2004 | DE10130522B4 Verfahren zur Korrektur der magnetischen Deklination einer Kompasseinheit A method for magnetic declination correction of a compass unit |
| 05/25/2004 | US6739063 Combination compass |
| 05/21/2004 | WO2004042322A1 Mobile electronic three-dimensional compass |
| 05/20/2004 | US20040093750 Fluid instrument bearing |
| 05/13/2004 | US20040090229 IC chip for a compact, low noise magnetic impedance sensor |
| 05/05/2004 | CN1493887A Determination device having magnetic flux gate and its control method |
| 04/29/2004 | US20040080316 Magnetometer having a dynamically adjustable bias setting and electronic vehicle compass incorporating the same |
| 04/01/2004 | US20040061605 Distributed motion prediction network |
| 04/01/2004 | DE20317279U1 Magnetic compass, e.g. for incorporation in a wristwatch has a magnetic body within a housing with markings on the housing, body or rotating scale indicating one to twelve in addition to, or instead of, compass point markings |
| 03/25/2004 | WO2004025777A1 Device and method to adjust the elevation and azimut angles for a satellite communication antenna |
| 03/24/2004 | CN1143190C Electronic instrument with magnetic sensor |
| 03/23/2004 | US6708415 Magnetic compass structure |
| 03/18/2004 | WO2004023074A1 Magnetic marine compass |
| 03/18/2004 | US20040051566 Sensing apparatus having fluxgate and control method thereof |
| 03/18/2004 | US20040049932 Luminescent indication compass |
| 03/18/2004 | US20040049931 Electronic instrument having a magnetic sensor |
| 03/11/2004 | WO2004020951A1 Mobile terminal device |
| 03/11/2004 | US20040045179 Combination compass |
| 03/10/2004 | EP1395844A2 Magnetic field sensor |
| 03/09/2004 | US6701631 Convertible directional azimuth and dip measuring modular compass and method |
| 03/03/2004 | EP1394508A1 Azimuth meter |
| 03/03/2004 | EP1393018A1 Method, device and system to show heading in a cellular network |
| 02/11/2004 | EP1388727A1 Apparatus and method for calculating azimuth angle |
| 02/11/2004 | CN1474934A Method and device for orienting map display in mobile or portable device |
| 02/10/2004 | US6691074 System for three dimensional positioning and tracking |
| 02/05/2004 | WO2004011880A1 Mortar ballistic computer and system |
| 02/05/2004 | WO2004011107A1 Address assisting device for golf and addressing method using the same |
| 02/05/2004 | WO2003074969A3 Electronic compass system |
| 02/05/2004 | US20040024566 Mortar ballistic computer and system |
| 02/05/2004 | US20040020064 Gyro aided magnetic compass |
| 01/29/2004 | US20040016058 Multi-purpose equipment |
| 01/20/2004 | CA2363472C Rearview mirror assembly with internally mounted compass sensor |
| 01/14/2004 | CN2599713Y Vehicular portable remote controller |
| 01/08/2004 | WO2004003476A1 Azimuth measuring device and azimuth measuring method |
| 01/08/2004 | WO2004003475A1 Compass display for a vehicle |
| 01/08/2004 | DE10227541A1 Orientierungshilfe auf Landkarten Guidance on maps |
| 01/07/2004 | EP0696356B1 Device for measuring magnetic fields |
| 01/06/2004 | CA2332264C Apparatus for measuring magnetic declination using gps |
| 01/01/2004 | US20040000062 Compass display for a vehicle |
| 12/31/2003 | CN2596481Y Geomagnetic field displayer |
| 12/24/2003 | WO2003044540A3 Magnetometer having a dynamically adjustable bias setting and electronic vehicle compass incorporating the same |
| 12/23/2003 | US6665944 Magnetic marine compass |
| 12/18/2003 | US20030233211 Motion prediction within an amorphous sensor array |
| 12/16/2003 | US6662459 Electronic azimuth meter and timepiece |
| 12/10/2003 | EP0722601B1 Electro-optic vision systems which exploit position and attitude |
| 12/04/2003 | WO2003100576A2 Distributed motion prediction network |
| 12/04/2003 | WO2003100449A1 Magnetic sensor and direction sensor |
| 11/26/2003 | CN2588327Y Cold light indication compass |
| 11/25/2003 | US6653831 Magnetometer having a dynamically adjustable bias setting and electronic vehicle compass incorporating the same |
| 11/18/2003 | US6651003 Method of automatic continuous calibration for an electric compass |
| 11/18/2003 | US6647633 Low profile compass with removable protective cover and magnetic bull's eye alignment system |
| 11/13/2003 | WO2003093762A1 Improvements relating to navigational instrumentation |
| 11/11/2003 | US6643941 Vehicle compass system with continuous automatic calibration |
| 11/05/2003 | CN2585184Y Digital compass |
| 11/05/2003 | CN2585183Y Four wooden wheels without spoke adjustable southward pointing car |
| 11/05/2003 | CN2585182Y Reproduced yellow emperor's south pointing chariot |
| 11/04/2003 | US6640610 Automatic integrated mechanical and electrical angular motion detector test system |
| 11/04/2003 | US6640454 Electronic instrument having a magnetic sensor |
| 10/30/2003 | US20030204361 Solid state orientation sensor with 360 degree measurement capability |
| 10/02/2003 | WO2003081176A1 Portable terminal |
| 09/25/2003 | DE20311605U1 Compass set for determining diverse qualities of compass directions has compass fixed to evaluation board so compass direction information on compass scale coincides with that on evaluation board |
| 09/24/2003 | CN1444051A Low-intensity magnetic field and its mfg. method using printed circuit board mfg. technology |
| 09/24/2003 | CN1444050A Low-intensity magnetic field and its mfg. method using printed circuit board mfg. technology |