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:
Feb. 23, 2010
Filed:
Feb. 16, 2005
Koji Minami, Tokyo, JP;
Chihiro Sakuwa, Tokyo, JP;
Toshihiro Gai, Tokyo, JP;
Masako Asamura, Tokyo, JP;
Koji Minami, Tokyo, JP;
Chihiro Sakuwa, Tokyo, JP;
Toshihiro Gai, Tokyo, JP;
Masako Asamura, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A gray-scale conversion means () converts the gray scale of an input video signal () as necessary, and outputs the video signal with the converted gray scale. A statistical processing means () detects a statistical property of each field or frame of the input video signal; a scene change detection means () detects scene changes in the input video signal. A conversion characteristic determination means () determines the gray-scale conversion characteristic according to outputs of the statistical processing means () and the scene change detection means (). The gray-scale correction increases contrast regardless of image content, and enables faster response to changes in image content.