Synchronization of symmetric timing based servo bursts

Details Synchronization of symmetric timing based servo bursts Synchronization of symmetric timing based servo bursts

2010-02-24

2011-11-08

Negron, Daniell L (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

C360S051000, C360S077120

Reexamination Certificate

active

08054568

ABSTRACT:
Timing based servo bursts of servo frames, in which the frames are arranged to be symmetric with the same number of servo stripes in each burst of a frame, are synchronized by shifting selected bits. For example, servo frames are arranged with four servo bursts with an equal number of servo stripes in each burst, the servo frames comprising two symmetric sub-frames, each sub-frame comprising two bursts of servo stripes that are parallel to each other within a burst, and the bursts are non-parallel with respect to each other; each servo burst is arranged to comprise at least one reference servo stripe; and each servo burst is arranged to comprise at least one shifted servo stripe, wherein the shift is in the same longitudinal direction with respect to at least one reference servo stripe for each burst of a frame and the opposite longitudinal direction for bursts of sequentially adjacent frames.

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