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:
Oct. 18, 2016
Filed:
Jun. 25, 2014
Ming-tsan Kao, Hsin-Chu, TW;
Chi-chieh Liao, Hsin-Chu, TW;
Chih-hsin Lin, Hsin-Chu, TW;
Tzung-min Su, Hsin-Chu, TW;
Ming-Tsan Kao, Hsin-Chu, TW;
Chi-Chieh Liao, Hsin-Chu, TW;
Chih-Hsin Lin, Hsin-Chu, TW;
Tzung-Min Su, 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 in a touch control area. The system includes: at least two reflective elements respectively disposed on a first side and a second side of the touch control area, wherein the sum of lengths of the first side and the second side is larger than the sum of lengths of the two reflective elements; two lighting elements respectively disposed on a third side and a fourth side of the touch control area; an image sensor forming projected images by capturing an image of the object and at least one mirror image of the object formed by the two reflective elements; and a processor calculating the coordinates of the object according to geometric information of the projected images.