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:
Oct. 07, 1986
Filed:
Apr. 18, 1985
Leopold A Harwood, Bridgewater, NJ (US);
Kirk A Law, East Windsor, NJ (US);
RCA Corporation, Princeton, NJ (US);
Abstract
Control signal generator is responsive to the output of a pair of correlation indicators. One correlation indicator provides an indication of the presence or absence of correlation between high frequency components derived without difference in delay from the respective luminance and chrominance outputs of a color TV receiver's comb filter system. The other correlation indicator provides an indication of the presence or absence of correlation between high frequency components derived with a difference in delay from the respective comb filter outputs, the delay difference corresponding to a quarter period at the nominal color subcarrier frequency. Control signal is developed in response to a correlation indication by either or both of the indicators. The luminance output of the comb filter is subjected to high frequency component removal during control signal development.