Burle Technologies, Inc.

Jon S Willoughby

Erik D Perkins

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.

Clock synchronized digital TV motion detector

A vertical motion detector for a TV system motion detector. The circuit operates by delaying each motion indicator signal by multiple units of the time required for one full horizontal line sweep. If vertical motion occurs, the delayed indicator will output from the delay at the same time another indicator occurs. These signals are fed to multiple AND gates so that several coincident signals are required to produce an alarm. A switching circuit permits selection of the number of vertical motion indicators required for an alarm.

Growing community of inventors

Oxford, PA, United States of America

Jon S Willoughby