Providing pre-determined servo position correction values...

Details Providing pre-determined servo position correction values... Providing pre-determined servo position correction values...

2007-06-13

2009-02-17

Olson, Jason C (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S077060

Reexamination Certificate

active

07492546

ABSTRACT:
A disk drive comprising a moveable head, a disk, and a servo controller to control track following operations is disclosed. The disk includes a plurality of tracks in which a substantial majority of the tracks include a plurality of servo sectors utilized in track following operations. The servo controller implements a program during power-up to: calculate servo position correction values using a set of servo position correction coefficients that have been pre-selected for the disk drive based upon the class of disk drive in which the set of servo position correction coefficients have been coded into the program; store the servo position correction values in a pre-determined servo position correction look-up table in memory; and utilize the pre-determined servo bursts correction look-up table to track follow on a reserved track of the disk.

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