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:
Apr. 21, 1987
Filed:
Sep. 25, 1985
Applicant:
Inventors:
Leopold A Harwood, Somerset County, NJ (US);
Paul D Filliman, Marion County, IN (US);
Ronald T Keen, Marion County, IN (US);
Assignee:
RCA Corporation, Princeton, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358171 ; 358172 ; 358181 ;
Abstract
A television receiver is arranged to selectively display either information from a broadcast television signal, or information from an auxiliary video signal. The black image reference level associated with the broadcast signal information is sampled and used to automatically establish the black image reference level of the auxiliary video signal.