Servo write method and servo write system for hard-disk drive

Details Servo write method and servo write system for hard-disk drive Servo write method and servo write system for hard-disk drive

2011-06-07

2011-06-07

Wong, K. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

C360S075000

Reexamination Certificate

active

07957087

ABSTRACT:
A servo write method for a hard-disk drive. The method includes generating, with an input of characteristics of a magnetic-recording head and a magnetic-recording disk which are incorporated into the hard-disk drive, a yield prediction model from a correlation between yields of the hard-disk drive, and characteristics of the magnetic-recording head and the magnetic-recording disk of the hard-disk drive in a process. The method also includes predicting a yield which is obtained when each magnetic-recording head is used as a position control head, selecting as the position control head a magnetic-recording head that has a highest predicted yield, and writing a servo signal.

REFERENCES:
patent: 5485322 (1996-01-01), Chainer et al.
patent: 2005/0043978 (2005-02-01), Chainer et al.
patent: 2006260682 (2006-09-01), None

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