METHOD AND DEVICE FOR MANAGING POWER CONSUMPTION

摘要

PROBLEM TO BE SOLVED: To completely prevent a non-essential power consuming device from consuming power when the device is not used by regulating a control type power plane through a logic means and performing the power-on or power-off of the control type power plane in response to a power-on or power-off signal through a regulating means. SOLUTION: After system initialization or loading of an MPEG decoder device driver, a monitor program 204 is automatically started and the start of a DVD application 202 is detected, a power source regulator 218 maintains power supply to a subsystem power plane (iPlane) 216. Then, power is supplied to an MPEG decoder 210 or the like connected to the iPlane 216. When it is detected that the DVD application 202 is not started, a signal is generated by a control and address recovery logic 220 according to the monitor program 204 and the power source regulator 218 is commanded to remove power from the iPlane 216.