Patent ID: 8127168
Filing Date: 2012-02-28
Classification: G06F,Y02D

Abstract:
1. A data processing apparatus comprising: a playback unit operable to play back a content; a first virtual execution unit operable to switch an operation mode thereof between a normal state and a power-saving state, and to judge whether to permit continuation of playback of the content based on a duration of the playback determined by given information; a second virtual execution unit operable to make a change to the given information; and a virtual machine monitor including a memory storing the given information and operable to manage the first virtual execution unit and the second virtual execution unit, wherein, before entering into the power-saving state, the first virtual execution unit notifies the virtual machine monitor of a time to return to the normal state from the power-saving state, and stays in the power-saving state until the time to return, the time to return being earlier than an end of the duration of the playback determined by the given information, and wherein, if the given information has been changed, then the virtual machine monitor notifies, at the time to return, the first virtual execution unit that the given information has been changed.