Dynamic magnetic information storage or retrieval – Record medium – Disk
Patent
1989-10-20
1991-11-19
Psitos, Aristotelis
Dynamic magnetic information storage or retrieval
Record medium
Disk
360 7703, 369 14, 3692751, G11B 5596, G11B 582
Patent
active
050670395
ABSTRACT:
A flexible magnetic medium having a plurality of optical servo tracks indelibly marked on the medium and a method for stamping the tracks on the medium. The optical servo tracks comprise a plurality of circular concentric regions positioned on a face of a floppy disk with each circular region comprising a plurality of pits. The optical servo tracks are imprinted on the floppy disk by placing a stamper disk bearing a template of the optical servo tracks in a hydraulic press and pressing the stamper disk and floppy disk together, typically under five to nine tons per square inch of pressure.
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Godwin Jimmy D.
Williams Stephen P.
Insite Peripherals, Inc.
Psitos Aristotelis
Robertson David L.
Schatzel Thomas E.
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