ELECTRONIC APPARATUS, DRIVING METHOD FOR ELECTRONIC APPARATUS, IMAGE PICKUP DEVICE AND METHOD AND COMPUTER READABLE STORAGE MEDIUM

摘要

PROBLEM TO BE SOLVED: To quickly run into a state capable of a main operation in a short time, the state capable of photographing when electronic apparatus is a digital still camera for instance, and to prevent a shutter chance from being missed. SOLUTION: A sub system control circuit 52 performs the control of the operation power source of a system control circuit 50, the detection of operation key input, liquid crystal display the delivery of a lens and collapsible barrel control, etc., stops power supply to the system control circuit 50 for power saving if the input of an operation key is not present for more than fixed time, supplies power again if the input of the operation key is present and reactivates the system control circuit 50.