| 摘要 |
A portable electronic apparatus able to execute processing concerning calibration of a geomagnetism sensor at a suitable timing and a method of calibration of such a geomagnetism sensor are provided. Further, when a key of a key input part (103) is operated in a power-saving mode, the power-saving mode ends, and the processing concerning the calibration of a detection value of a geomagnetism sensor (110) is executed. Due to this, the processing concerning the calibration is executed in a state where a user tries to view a screen of a display part (107), therefore the calibration processing is executed in a state where an angle of housings with respect to the horizontal plane is suitable, and a calculation precision of a bearing can be improved. Further, by executing the processing concerning the calibration during activation of the navigation application (processing concerning the calculation and display of the bearing), useless calibration is not carried out in a state where the calculation and display of the bearing are not carried out, therefore an increase of power consumed can be suppressed. |
