Patent ID: 7552347
Filing Date: 2009-06-23
Classification: G06F,H04N,Y02D

Abstract:
1. A method for adaptively managing power usage of a disk drive in a device, the method comprising the steps of: monitoring current user activity with the device; reducing power to the disk drive after a predetermined period of user inactivity; maintaining a user activity log of past user activity events, wherein the log comprises a plurality of time slots, each time slot associated with a time of day at which one of the past user activity events occurred, and the log comprises a plurality of counters associated with each time slot; using, for each time slot, the associated plurality of counters to track the number of past user activity events that occurred during the time slot; mapping, for each time slot, an indication of future user activity in the user activity log, based on the values of the plurality of counters associated with the time slot; and adjusting the predetermined period of user inactivity based on the indication in the user activity log of future user activity.