Rotational vibration velocity-based sensor for disk drives

Details Rotational vibration velocity-based sensor for disk drives Rotational vibration velocity-based sensor for disk drives

2005-11-08

2005-11-08

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S077030

Reexamination Certificate

active

06963463

ABSTRACT:
A disk drive (HDD) subject to linear and rotational vibration, includes an independent sensing unit for sensing a rotational velocity component of the HDD rotational vibration in a predetermined frequency range.

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Charlie Hernden, “Vibration Cancellation Using Rotational Accelerometer FeedForward in HDDS”, Data Storage, Nov. 2000, 4 Pages Total.
Jinzenji et al., “Acceleration FeedForward Control Against Rotational Disturbance in Hard Disk Drives” APMRC, Nov. 6-8, 2000, TA6-01-TA6-02, 2 Pages Total.
Jinzenji et al., “Acceleration FeedForward Control Against Rotational Disturbance in Hard Disk Drives”, IEEE 2001, Nov. 22, 2000, 6 Pages Total.

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