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:
Jul. 12, 2011
Filed:
Dec. 28, 2006
Applicants:
Jeffrey A. Small, Rochester, NY (US);
John S. Childs, Rochester, NY (US);
Jeffrey Lillie, Mendon, NY (US);
Vladimir Misic, Rochester, NY (US);
Inventors:
Jeffrey A. Small, Rochester, NY (US);
John S. Childs, Rochester, NY (US);
Jeffrey Lillie, Mendon, NY (US);
Vladimir Misic, Rochester, NY (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
Stochastic dithering may be used to reduce the size of the frame buffer and the complexity of the D/A Converters (DACs) in the drive circuitry that are used in a video display system. Hardware for stochastic dithering can be simplified when pixel data is presented in raster order. The hardware adds algebraic noise to the image to be dithered, and thresholds the result.