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:
Apr. 24, 2012
Filed:
Aug. 12, 2008
Tomomi Inoue, Tokyo, JP;
Yoshifumi Sakamoto, Shiga-ken, JP;
Koki Shimohashi, Shiga-ken, JP;
Manabu Toyota, Kyoto-Prefecture, JP;
Tomomi Inoue, Tokyo, JP;
Yoshifumi Sakamoto, Shiga-ken, JP;
Koki Shimohashi, Shiga-ken, JP;
Manabu Toyota, Kyoto-Prefecture, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Detect four sets of first touch coordinates (A, B, C, D) on a touch panel. Divide an area delimited by the detected four sets into two areas of triangles (ABD, BCD). For each area of triangle, obtain a first correction factor. Detect a set of second touch coordinates (P, Q) selected within a respective one of the areas of triangles. Convert the detected set of second touch coordinates into a set of first corrected coordinates. Detect a difference between the set of first corrected coordinates and a set of true display coordinates. Where the detected difference is greater than a predetermined threshold value, further divide the area of triangle (BCD) into three areas of triangles (QBD, QBC, QCD). Obtain a second correction factor using the set of second touch coordinates and the sets of first touch coordinates corresponding to the vertices.