Self-servo-write method with repeatable runout compensation

Details Self-servo-write method with repeatable runout compensation Self-servo-write method with repeatable runout compensation

2010-11-12

2011-10-25

Wong, K. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

08045287

ABSTRACT:
A system including a self-servo-write, a position measuring module, and a compensation module. The self-servo-write module is configured to position a head of a hard disk drive to write a first set of servo wedges on a magnetic medium of the hard disk drive. The position measuring module is configured to measure a first position of the head when the head writes the first set of servo wedges on the magnetic medium. The compensation module is configured to generate first data to compensate a repeatable error based on the first position of the head measured by the position measuring module. The first data to compensate the repeatable error is written on the magnetic medium along with the first set of servo wedges.

REFERENCES:
patent: 6310742 (2001-10-01), Nazarian et al.
patent: 6977791 (2005-12-01), Zhu et al.
patent: 7119981 (2006-10-01), Hanson et al.
patent: 7602568 (2009-10-01), Katchmart
patent: 7835107 (2010-11-01), Horisaki et al.
“Interactive Learning Control and Repetitive Control in Hard Disk Drive Industry—A Tutorial”; Yang Quan Chen, Kevin L. Moore, Jie Yu and Tao Zhang; Sep. 17, 2006; 14 pages.

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