Patent ID: 8069360

Claim:
An information processing apparatus working in pause states, wherein the pause states contain at least both a suspension state and a hibernation state, the apparatus comprising: time counting means for counting time elapsed in the suspension state from a transition to the suspension state; and transitioning means for transitioning to the hibernation state if the elapsed time has exceeded a predetermined period of time, wherein the transitioning means transitions to the hibernation state if an output voltage of a battery in the information processing apparatus is lower than a predetermined threshold value regardless of whether the elapsed time has exceeded the predetermined period of time, and wherein the information processing apparatus is a portable digital still camera, and wherein the digital still camera is configured to return to a camera operating state from the suspension state upon detection of opening of a lens cap of the digital still camera, and wherein the detection of the opening of the lens cap initiates a photographing process execution state in the digital still camera, wherein the digital still camera comprises a host CPU to control a graphic user interface of the digital still camera, a real-time processing CPU to control an image capture process of the digital still camera and an embedded CPU to control power to activate the host CPU and the real-time processing CPU in response to the opening of the lens cap.