Third order curve fit for head skew in a hard disk drive

Details Third order curve fit for head skew in a hard disk drive Third order curve fit for head skew in a hard disk drive

2008-07-01

2008-07-01

Nguyen, Hoa T. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07394612

ABSTRACT:
A hard disk drive that utilizes a third order curve fit equation to generate a skew table for a head of a hard disk drive. The skew table is used to compensate for offset between a write element and a read element of the head at different radial positions of a disk. A linear algebraic matrix equation can be used to solve the third order equation using offset values measured at different radial positions of the disk.

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