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:
Nov. 18, 1986
Filed:
Feb. 19, 1985
Robert A Wargo, Ringoes, NJ (US);
Leopold A Harwood, Bridgewater, NJ (US);
RCA Corporation, Princeton, NJ (US);
Abstract
A peaking circuit for use in a digital video signal processing system includes a digital peak detector which produces a peak magnitude whenever the slope of the video signal changes polarity. The peak magnitudes, and the absences of peaks are summed in an accumulator over a field period. The accumulated peaks are applied to a gain calculating circuit which develops a peaking control signal having three regimes. For low valued accumulated peaks the gain or peaking control signal is constant and relatively large. For high valued accumulated peaks the gain is constant and negative. In between the gain is in inverse porportion to the value of the accumulated peaks.