Method and apparatus to compensate for servo wedge rotational of

Details Method and apparatus to compensate for servo wedge rotational of Method and apparatus to compensate for servo wedge rotational of

1997-11-18

2000-05-23

Edun, Muhammad

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7702, G11B 5596

Patent

active

060672064

ABSTRACT:
A disk drive controller having a microprocessor and a sampled signal head positioning system measures and stores the relative rotational offsets between heads arranged in a stacked relationship and respective servo wedges on different disk surfaces. The offsets are stored in a table and subsequently applied to a servo wedge detection circuit to ensure that a next sequential wedge is detected after a head switch.

REFERENCES:
patent: 5109502 (1992-04-01), Sasamoto et al.
patent: 5901010 (1999-05-01), Glover et al.
patent: 5909336 (1999-06-01), Schaffner et al.

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