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:
Aug. 19, 1986
Filed:
May. 31, 1984
Leendert J van de Polder, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
The television circuit is suitable for use with a television picture signal originating from a tele-cine converter (1) which operates at a cine film display rate of 24 frames per second and a 60 Hz field frequency. The picture signal has cycles of alternately two and three field periods with the same picture information which, on display, results in flicker phenomena. To reduce flicker on display of the picture signal on a display screen, the picture signal is applied directly and by a delay device (5) producing a time delay of at least two or more whole field periods to a signal combining circuit (6) which is in the form of a matrix circuit and is followed by a change-over circuit (7). The matrix circuit (6) produces signal combinations in the output picture signal which on display result in flicker reduction.