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:
Apr. 16, 1991
Filed:
Dec. 21, 1989
Jon S Willoughby, Oxford, PA (US);
Burle Technologies, Inc., Wilmington, DE (US);
Abstract
A digital motion verification circuit for a television system. The circuit synchronizes an actual and a stored signal from an edge motion indicator with the system clock, so that the edge signals are precisely timed and do not have errors from overlapping or mistimed signals. The circuit uses an EXCLUSIVE OR circuit followed by an inverter stage to produce an output when the clock synchronized stored signal and the actual signal have a discrepancy. This EXCLUSIVE OR output signal is applied to the data input of a shift register that produces clock synchronized output signals which, when accumulated to a predetermined number, initiate a motion flag which indicates the presence of several exactly adjacent signals.