Off track write protection using filtered position error signal

Details Off track write protection using filtered position error signal Off track write protection using filtered position error signal

2006-10-17

2008-03-11

Nguyen, Hoa T. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S060000, C360S077020

Reexamination Certificate

active

07342737

ABSTRACT:
Methods of filtering a position error signal (PES) indicative of a position of a transducer of a disk drive include obtaining sample position data for the transducer, eliminating selected data of the sample position data to provide a subset of the sample position data, obtaining a plurality of sets of preliminary filter coefficients based on the subset of the sample position data, obtaining a final set of filter coefficients from the plurality of sets of preliminary filter coefficients, and filtering a position error signal using the final set of filter coefficients. Corresponding disk drives are also disclosed.

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