Patent ID: 6424600
Filing Date: 2002-07-23
Classification: G04G,G06F,H02J,Y02B,Y04S

Abstract:
A portable electronic device comprising power generating means which performs power generation by converting first energy into second energy that is electrical energy,power source means for storing electrical energy resulting from the power generation, driven means for being driven by the electrical energy supplied by the power source means, operation means on which an operator, such as a user, performs a diversity of operations, operational state determining means for determining whether an operational state of the operation means is a predetermined operational command state to shift into a power save mode for reducing a power consumption of the driven means, and operation mode control means for shifting an operation mode into the power save mode in accordance with the determination result provided by the operational state determining means, and wherein the operation means comprises an operation control, and position detector means for detecting the position of the operation control which the operator operates, and wherein the operational state determining means determines that the operation means is in an operational command state to shift into the power save mode if the operation control is moved from a first position to a second position and is then moved back to the first position from the second position within a predetermined duration of time.