Magnetic disk medium, fixed magnetic disk drive unit, and...

Details Magnetic disk medium, fixed magnetic disk drive unit, and... Magnetic disk medium, fixed magnetic disk drive unit, and...

2005-12-27

2005-12-27

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

C360S135000

Reexamination Certificate

active

06980387

ABSTRACT:
A magnetic disk medium allows embedding ID information that prevents manipulation and yet holds its uniqueness. ID information for uniquely identifying a medium is recorded separately as a master ID information on a preformatted region and as individual medium ID information on a non-preformatted region in a pre-embossed type magnetic disk.

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