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:
Mar. 19, 1991
Filed:
Aug. 23, 1989
Terence Doyle, Eindhoven, NL;
Martine Looymans, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
In a picture signal processing circuit including an interpolation filter having a median filter (67) having a first input (63), a second input (69) and a third input (63) to which respective signals from picture elements of three positionally consecutive lines from a preceding and a present field of a line and field-sequentially assembled picture signal are applied, it has been found that a better result can be obtained for moving contours in the picture signal by taking a (weighted) average from these signals of the present field, and to take this average instead of or mixed with an output signal (Y') of the median filter (67).