In a system for creating, reading and writing on rotatable infor

Details In a system for creating, reading and writing on rotatable infor In a system for creating, reading and writing on rotatable infor

1998-02-13

1999-02-16

Barlow, Jr., John E.

Boots, shoes, and leggings

364707, 360 721, 360 75, 369 54, 369100, G11B 700, G11B 1900

Patent

active

058727230

ABSTRACT:
Advantage is taken of a laser beam and reference track system for recording information on a CD-ROM or similar device. Precise determination of radial and angular position provide accurate indications of drive motor speed and performance, both instantly and over any select period of time so as to give an early indication of motor or bearing wear or failure.

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