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:
Jun. 29, 1993
Filed:
Apr. 25, 1991
John W Craig, Anaheim Hills, CA (US);
Kenneth R Burns, Nederland, CO (US);
Storage Technology Corporation, Louisville, CO (US);
Abstract
The data detection circuit includes a sampling detector which measures both the shape and amplitude of the incoming pulse signal. This apparatus determines the amplitude of the read signal at a plurality of points in time and produces a signal indicative of the presence of recorded data if the measured amplitudes match predetermined thresholds. The predetermined thresholds are used in three measurements: determination that the amplitude of the read signal at one point in time exceeds a predetermined threshold; a determination that the amplitude of the read signal at the one point in time concurrently exceeds the amplitude of the read signal at two other points in time both before and after the one point in time. Also included in this apparatus is a clock generation circuit that produces a clock signal based upon the indication of the presence of recorded data so that the indication of the recorded data and the generation of the clock signal occur in a single channel.