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:
Sep. 13, 2005
Filed:
Mar. 01, 2002
Eric Peter Funke, Eindhoven, NL;
Eric Peter Funke, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A video signal enhancement unit () and an image display apparatus containing the unit have a processing unit () for contrast modification of the video signal. The processing unit () receives input data from a contrast counter (), designed to store a contrast count. The contrast count is decreased by a pixel counter () each time the total number of pixels which have video signal levels that are higher than a predetermined video level, exceeds a predefined threshold. The contrast count is increased each time a trigger means () generates a pulse. A contrast comparator () can be coupled to the contrast counter () to limit the contrast count to a maximum contrast value.