Patent ID: 8230244
Filing Date: 2012-07-24
Classification: G06F,Y02D

Abstract:
1. A method for controlling a group of logic included in a hard disk drive system, comprising: obtaining an access instruction associated with accessing a target location in a disk included in the hard disk system; calculating a number of units until the target location is accessed; determining whether there is time for the group of logic to transition from a lower power state to an operational state in which the group of logic is configured to access the target location, in the event the group of logic is put into the lower power state, wherein the determination is based at least in part on (1) the number of units between (a) a current location of a read head associated with the hard disk system and (b) the target location which is different from the current location of the read head and (2) a warm up time associated with the group of logic, wherein: in the event it is determined there is time for each piece of logic in the group to transition, using a processor to put the group of logic into the lower power state.