Disk drive correcting position error signal based on...

Details Disk drive correcting position error signal based on... Disk drive correcting position error signal based on...

2010-06-23

2011-12-13

Wong, K. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

08077428

ABSTRACT:
A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of servo sectors that define a plurality of servo tracks. A position error signal (PES) is generated in response to the servo sectors, and a head velocity is estimated relative to the servo tracks. A correction value is generated as a function of the head velocity and the PES, and the PES is adjusted using the correction value to generate an adjusted PES. The head is positioned over the disk in response to the adjusted PES.

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U.S. Appl. No. 12/537,974, filed Aug. 7, 2009, 26 pages.

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