Disk drive employing multiple index marks

Details Disk drive employing multiple index marks Disk drive employing multiple index marks

2006-09-19

2006-09-19

Young, Wayne (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

Reexamination Certificate

active

07110202

ABSTRACT:
A disk drive is disclosed comprising a disk surface having a plurality of concentric, radially spaced tracks, wherein each track comprises a plurality of data sectors and a plurality of servo sectors. At least two different index marks are distributed around the circumference of the disk surface. A servo sector counter is initialized relative to which index mark is detected, wherein the servo sector counter identifies a circumferential location of the servo sectors.

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