Patent ID: 7113361

Claim:
A system for retracting a read/write head to a landing position of a disk in a disk drive, said system comprising: an actuator coupled with said read/write head for retracting said read/write head in a first direction toward an outside diameter of said disk and a second direction toward an inside diameter of said disk in response to respective signals; and a control device coupled with said actuator and adapted for determining a retract direction for said read/write head, wherein a first signal indicative of a first direction and a second signal indicative of a second direction are provided to said actuator, said control device further providing said first signal responsive to a power off condition and providing said second signal subsequent to providing said first signal for retracting said read/write head to said landing position, wherein said control device provides said second signal at a predetermined time period following said power off condition, wherein said control device is further adapted for comparing a predetermined reference voltage with a b-emf voltage produced by the disk drive motor of said disk drive system for producing said second signal following said power off condition.