164544 ⎘
Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes; Magnetic compasses; Electromagnetic compasses Electron compasses
Magnetometer and method for finding a magnitude of an ambient magnetic field or of one or more components thereof
#2Spinning hall probe compass
#3INDOOR DIRECTION GUIDING METHOD AND SYSTEM THEREFOR
#4Electronic compass
#5Method and apparatus for indicating direction
#6Offset calculation device and azimuth sensor therewith
#7ELECTRONIC COMPASS DEVICE FOR VEHICLE, PORTABLE ELECTRONIC COMPASS CALIBRATION DEVICE, CONTROL PROGRAM FOR PORTABLE ELECTRONIC COMPASS CALIBRATION DEVICE, AND ELECTRONIC COMPASS CALIBRATION SYSTEM FOR VEHICLE
#8Orientation Determination For A Mobile Device