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:
Dec. 09, 1986
Filed:
Apr. 02, 1985
Applicant:
Inventor:
James W Ensinger, Roselle, IL (US);
Assignee:
Zenith Electronics Corporation, Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 39 ; 358 / ;
Abstract
A baseband color video signal processor includes a selective transistor clipper for holding luminance components to a maximum level. The base of the transistor is operated at a first voltage below the desired maximum level. A tuned circuit, tuned to the frequency of the chrominance subcarrier, is connected in its emitter-collector path of the transistor for isolating it from chrominance components in the color video signal.