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:
Aug. 23, 1983
Filed:
May. 08, 1981
Thomas D Yost, Indianapolis, IN (US);
RCA Corporation, New York, NY (US);
Abstract
A synchronizing pulse separator providing output having reduced dependence upon the average signal amplitude level of the composite video signal input comprises a low pass filter coupled to the source of composite video signals. The low pass filter removes high frequency noise components in the composite video signal to reduce false triggering and mistriggering of the sync separator without significantly altering the contour of the sync pulses. A clipping amplifier reduces the sync pulse amplitude range in which the sync separator may trigger in order to reduce sync mistiming errors. A second low pass filter further removes noise from the amplified signal before the signal is applied to the sync pulse output generator.