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:
Aug. 21, 2012
Filed:
Mar. 13, 2009
Osamu Yoshikawa, Tokyo, JP;
Osamu Yoshikawa, Tokyo, JP;
SMK Corporation, Tokyo, JP;
Abstract
A coordinate inputting device includes an X+ electrode having a plurality of X+ branch patterns extending from one side to the other side in the X direction, an X− electrode having a plurality of X− branch patterns extending from one side to the other side in the X direction, a Y+ electrode having a plurality of Y+ branch patterns extending from one side to another side in the Y direction, and a Y− electrode having a plurality of Y− branch patterns extending from one side to the other side in the Y direction. An X, Y coordinate position of an object is detected from, respectively, the difference between the floating capacitances of the X+ electrode and X− electrode, and the difference between the floating capacitances of Y+ electrode and Y− electrode, which change according to the surface area of the electrodes in proximity to the object to be detected.