Method and apparatus for applying adaptive non-linear...

Details Method and apparatus for applying adaptive non-linear... Method and apparatus for applying adaptive non-linear...

2006-01-17

2006-01-17

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

06987638

ABSTRACT:
A method and apparatus for applying adaptive non-linear repeatable runout compensation in a disk drive is provided. In one embodiment, the present invention provides a disk surface having a track written thereon, wherein the track includes repeatable runout. A non-linear converge gain is applied to compensate for the repeatable runout. In one embodiment, the converge gain is based upon an amplitude of a position error signal associated with the repeatable runout at a frequency of rotation of the disk surface (or multiple thereof).

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