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:
Jan. 24, 2012
Filed:
Mar. 06, 2006
Hiroaki Shigeta, Tenri, JP;
Taketoshi Nakano, Palatine, IL (US);
Hiroaki Shigeta, Tenri, JP;
Taketoshi Nakano, Palatine, IL (US);
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A threshold table () has stored therein thresholds for classifying gradation values, and the gradation values are classified into a plurality of gradation sections in accordance with the thresholds. A look-up table () has stored therein differential gradation values corresponding to combinations of gradation section values for data concerning the current frame data and gradation section values for data concerning an immediately preceding frame. A frame memory () has stored therein gradation section values for pixels. A control circuit () refers to the look-up table () and the threshold table () to calculate a differential gradation value based on a gradation value indicated by image data (DAT) for the current frame and a gradation section value of previous frame data stored in the frame memory (). A display data calculation circuit () calculates an applied gradation value for the current frame data based on the differential gradation value.