Head follow-up control method, head follow-up control device...

Details Head follow-up control method, head follow-up control device... Head follow-up control method, head follow-up control device...

2006-10-10

2006-10-10

Miller, Brian E. (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S053140, C369S053230

Reexamination Certificate

active

07120101

ABSTRACT:
A follow-up control system follows up a head of a storage device to a storage medium. A sine wave signal learning section (82) which learns sine wave signals according to follow-up error signals which are input to a feedback control system (80), and performs time lead compensation corresponding to a delay of the feedback system (80), is provided. Since the time lead compensation is used for the sine wave signal learning model which can learn at high-speed, frequency disturbance of high frequency, for which phase lag must be considered, can be a compensation target, and the present invention contributes to the improvement of follow-up accuracy of the storage device.

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Dote et al.; “Modem Control Series 4 ‘Motion Control’”; pp. 131-139; Corona Ltd.

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