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:
Dec. 13, 2011
Filed:
Mar. 16, 2007
Toshihiro Uota, Nara, JP;
Toshihiro Uota, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A correction characteristic storage portion stores coordinates (Xp,Yp) of a break point P and curve approximation range widths Wa and Wb. A basic broken line coefficient calculation portion calculates a coefficient Cfor a straight line OP and a coefficient Cfor a straight line PP'. An auxiliary straight line coefficient calculation portion obtains division points P and Q at which to divide two line segments AP and PB in the proportion in which a curve approximation range is divided by input data X, and calculates a coefficient Cfor an auxiliary straight line PQ. A range determination portion determines whether the input data lies within the curve approximation range. A coefficient selection portion and a primary expression calculation portion perform either correction based on the basic broken line or correction based on the auxiliary straight line according to the determination.