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:
Jun. 10, 1980
Filed:
Mar. 14, 1979
Saiprasad V Naimpally, Indianapolis, IN (US);
Thomas D Yost, Indianapolis, IN (US);
RCA Corporation, New York, NY (US);
Abstract
A combined phase shift and bandpass filter circuit in a color television receiver including color signal demodulators, and an automatic flesh tone correction network which provides a reference signal for the color demodulators, is disclosed. The circuit comprises an integral bandpass filter and phase shift network coupled between the output of the flesh tone correction network and the reference signal inputs of the demodulators. The circuit filters unwanted frequency components of the reference signal from the flesh correction network, and provides phase shifting of the reference signal as appropriate for proper operation of the demodulators. The circuit exhibits good phase stability, does not require alignment from receiver to receiver, and requires a minimum of connecting terminals to the flesh correction network and color demodulators.