Patent ID: 6628572
Filing Date: 2003-09-30
Classification: G04C,G04G,H02J

Abstract:
In a portable electronic device, an electronic device comprising:power generating means for generating electric power by converting first energy into electrical energy; power means for storing electrical energy generated by the power generating means; driven means driven by the electrical energy supplied from the power means; power generation detecting means for detecting whether the power generating means is generating storable electric power that is sufficient to be stored in the power means; stored power voltage detecting means for detecting a stored power voltage of the power means; operating voltage detecting means for detecting whether the stored power voltage of the power means has reduced to an operating voltage of the stored power voltage detecting means or less; and voltage detection control means for prohibiting an operation of the stored power voltage detecting means if the operating voltage detecting means detects that the stored power voltage of the power means has dropped to the operating voltage or less and the power generation detecting means does not detect the generation of storable power.