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. 08, 1986
Filed:
Jun. 24, 1983
Applicant:
Inventor:
Paul Sonnenberger, Hamburg, DE;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 37 ; 358166 ;
Abstract
In order to enhance the sharpness of edges, the incoming video signal, for example a color-difference signal, is stored upon the occurrence of an edge until the end of the transition with the value occuring before the edge appeared. The transition interval is determined in that the video signal is differentiated and passed through a threshold device. At the end of the transition interval, a change-over is effected to the new signal value.