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. 20, 2012
Filed:
Dec. 20, 2007
Jun Someya, Tokyo, JP;
Kazuo Kyuma, Tokyo, JP;
Kazuhiko Tsutsumi, Tokyo, JP;
Hiroaki Sugiura, Tokyo, JP;
Hironobu Yasui, Tokyo, JP;
Jun Someya, Tokyo, JP;
Kazuo Kyuma, Tokyo, JP;
Kazuhiko Tsutsumi, Tokyo, JP;
Hiroaki Sugiura, Tokyo, JP;
Hironobu Yasui, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A video display apparatus generates luminance information for individual frames of a video signal from histograms of the luminance component of the video signal, and classifies the content of the video signal on the basis of this information. Color saturation information is also generated from color saturation histograms, and scene changes are detected. Video correction parameters and display control parameters are derived from the content classification and color saturation information. The video signal is corrected according to the video correction parameters, and displayed according to the display control parameters. Display characteristics suitable for the video content are thereby obtained. The parameters are changed when a scene change is detected, so that the viewer is not disturbed by the change in video display characteristics.