The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 1985
Filed:
Mar. 15, 1983
William G Moon, Sunnyvale, CA (US);
Ronald R Moon, Santa Clara, CA (US);
Bruce R Peterson, San Jose, CA (US);
Donald C Westwood, Cupertino, CA (US);
Quantum Corporation, Milpitas, CA (US);
Abstract
An improved rotating disk data storage device is achieved in a combination of an optical encoder to detect data track crossings, a servo sector surface on one of a plurality of rotating data storage disks with the surface being filled with a pattern of alternating bursts which are read for relative amplitude and compared to provide track centerline information. A programmed microprocessor and a rotary actuator for the data transducers combine with the other elements to move the transducers from track to track and keep them on track during data read and write operations.