US Patent 8255725 Information processing apparatus and power-saving control method

According to one embodiment, a power management module in an information processing apparatus is configured to execute a process of setting a power-down signal to a peripheral device in an active state in response to a power-down signal generation command, a process of setting the information processing apparatus in a sleep state in response to a sleep state transition request signal, a process of restoring the information processing apparatus to a working state in response to generation of a predetermined wakeup event, and a process of setting the power-down signal in an inactive state before a predetermined time has passed since the restoration of the information processing apparatus to the working state.