Patent ID: 7818136
Filing Date: 2010-10-19
Classification: G01C

Abstract:
1. A calibration method of detecting azimuth, which is applied on a portable electronic device that comprises a magnetic detector and a sensor where the magnetic detector is utilized for detecting a first magnetic field and outputting azimuth data, and the sensor has a first status parameter and a second status parameter correspondingly when detecting the portable electronic device being operated in a first using configuration and in a second using configuration, the calibration method comprising steps: the magnetic detector loading a corresponding first default setting according to the first status parameter of the sensor for detecting the first magnetic field and outputting azimuth data; and when the sensor detects the second using configuration of the portable electronic device, the magnetic detector loading a corresponding second default setting according to the second status parameter of the sensor for detecting the first magnetic field and outputting azimuth data; wherein the first using configuration and the second using configuration of the portable electronic device are structural configurations of the portable electronic device.