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:
Jan. 11, 1983
Filed:
Jun. 22, 1981
Frank C Liu, Phoenix, AZ (US);
RCA Corporation, New York, NY (US);
Abstract
A video defect compensator is provided which develops a replacement or substitution video signal for use during a defect in the signal normally being displayed. The substitution signal is generated by averaging four picture points in the vicinity of the displayed picture point, two from the television line preceding the line currently being displayed and two from the television line succeeding the line currently being displayed. The four picture points are made available by utilizing a 2H delay line and wherein the line currently displayed is delayed by one TV line. Two signals temporally displayed by one color subcarrier period and delayed from the current signal by 1H are summed. Two signals temporally displaced by one color subcarrier period and preceding the currently displayed signal by 1H are also summed. The two sets of summed signals are then combined and divided by four to produce a replacement signal which is the average of four picture points.