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. 08, 2016
Filed:
Oct. 08, 2012
Chun-shen Lin, Hsin-Chu, TW;
Chun-yi LU, Hsin-Chu, TW;
Chi-chieh Liao, Hsin-Chu, TW;
Tzung-min Su, Hsin-Chu, TW;
Ming-tsan Kao, Hsin-Chu, TW;
Chun-Shen Lin, Hsin-Chu, TW;
Chun-Yi Lu, Hsin-Chu, TW;
Chi-Chieh Liao, Hsin-Chu, TW;
Tzung-Min Su, Hsin-Chu, TW;
Ming-Tsan Kao, Hsin-Chu, TW;
PIXART IMAGING INCORPORATION, R.O.C., Hsin-Chu, TW;
Abstract
The present invention discloses an optical touch panel system and a positioning method for positioning an object existing in a touch control area. The system includes: at least one reflective element disposed on a side of the touch control area; at least one light guide module disposed on a side of the touch control area adjacent to or opposite the reflective element and emitting light; an image sensor capturing an image of the object; a plurality of photo detectors arranged on a side of the touch control area adjacent to the image sensor and sensing the object to obtain shade information; and a processor calculating the coordinates of the object according to the image and the shade information.