Patent ID: 7389441
Filing Date: 2008-06-17
Classification: G06F

Abstract:
1. An apparatus for controlling an electronic device, comprising: a power supply circuit for supplying each circuit of the electronic device with electric power provided by a battery removably installed in the electronic device; a first detection circuit for detecting whether voltage of the battery is less than a first threshold-value voltage, or equal to or greater than the first threshold-value voltage; a first power supply control device, which is responsive to detection of a power drop by said first detection circuit indicating that the voltage of the battery is less than the first threshold-value voltage, for controlling said power supply circuit so as to halt supply of electric power to a circuit that was operating when the power drop was detected; and a second power supply control device, which is responsive to halting of supply of electric power by said first power supply control device, for controlling said power supply circuit so as to supply the circuit that was operating when the power drop was detected with electric power that is lower than electric power that was being supplied when the power drop was detected.