Disk storage unit positioning control for applying DC offsets to

Details Disk storage unit positioning control for applying DC offsets to Disk storage unit positioning control for applying DC offsets to

1994-10-28

1998-06-02

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Recorder control of an external device

360 7704, 360 4411, G11B 5596, G11B 700

Patent

active

057609918

ABSTRACT:
A disk storage unit according to the present invention comprises a disk for storing data, a head for at least reading data stored on the disk, a controller for controlling a seek operation in which the head moves from a current track to a target track and a tracking operation in which the head tracks the target track after reaching the target track, based on a tracking error signal, and a device for adding a dc offset to the tracking error signal so that head drive power having a direction opposite that of the seek operation and corresponding to the velocity of the head in the seek operation is generated after the head has reached the target track and the seek operation has been switched to the tracking operation.

REFERENCES:
patent: 4796112 (1989-01-01), Mizukami et al.
patent: 4907109 (1990-03-01), Senio360 77.04

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