Data-storage disk having few or no spin-up wedges and method...

Details Data-storage disk having few or no spin-up wedges and method... Data-storage disk having few or no spin-up wedges and method...

2001-11-05

2010-11-23

Mercedes, Dismery E (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S048000, C360S051000, C360S077020, C360S077080

Reexamination Certificate

active

07839594

ABSTRACT:
A data-storage disk includes a disk sector for storing data and a servo wedge located at the beginning of the sector. The servo wedge indentifies the sector in conjunction with both an initial positioning of a read-write head and a data read or write operation. By using a servo wedge to provide both an initial head position on disk spin up and a head position during a read or write operation, one can increase a disk's data-storage capacity by reducing the number of, or altogether eliminating, spin-up wedges.

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