| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect the switching condition of a cover without being dependent on the clock oscillation condition of a control circuit which manages the controlling of: a voltage value which is applied to a switch part; and an electronic device. <P>SOLUTION: A control section determines that a switch part is opened when the potential difference between the power supply side and the load side of the switch part is larger than a predetermined value, and that the switch part is closed when the potential difference is not larger than a predetermined value. Alternatively, when an electronic device is in a standby state of operation, the control section determines that the switch part is opened when the voltage detected by the first detection part is larger than a predetermined value, and determines that the switch part is closed when the voltage detected by the first detection part is not larger than a predetermined value. When the electronic device is in an energy saving state, the control section determines that the switch part is opened when the voltage detected by the second detection part is larger than a predetermined value, and determines that the switch part is closed when the voltage detected by the second detection part is not larger than a predetermined value. <P>COPYRIGHT: (C)2012,JPO&INPIT |
