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:
Nov. 26, 2002
Filed:
Jan. 03, 1995
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G09B 3/36 ;
U.S. Cl.
CPC ...
G09B 3/36 ;
Abstract
Brightness of input data ranging from 0 to 20% (brightness close to black) is converted to gradation Y (black) and brightness ranging from 80 to 100% (brightness close to white) is converted to gradation Y (white). Ranges of brightness from 20 to 35%, 35 to 45%, 45 to 50%, 50 to 55%, 55 to 65%, and 65 to 80% are converted to gradations Y to Y respectively. While brightness of the input data is converted to eight gradations which an LCD can display, intervals of brightness assigned to each of gradations are so specified that they are narrower around medium brightness (around 50%) than around the minimum (0%) or maximum (100%) brightness, i.e., the conversion is performed in a nonlinear manner.