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:
May. 31, 2016
Filed:
Oct. 11, 2013
Pixart Imaging Inc., Hsin-Chu County, TW;
Cheng-Nan Tsai, Hsin-Chu, TW;
Tzung-Min Su, Hsin-Chu, TW;
Chih-Hsin Lin, Hsin-Chu, TW;
Yaun-Yu Peng, Hsin-Chu, TW;
Yu-Chia Lin, Hsin-Chu, TW;
Chuan-Ching Lin, Hsin-Chu, TW;
Teng Wei Hsu, Hsin-Chu, TW;
PIXART IMAGING INC., Hsin-Chu County, TW;
Abstract
There is provided an optical touch system including a touch surface, a plurality of image sensors and a plurality or compensation light sources, wherein each of the image sensors is adjacent to one of the compensation light sources. When one of the image sensors is capturing an image frame, the compensation light source not adjacent to and within a field of view of the image sensor which is capturing the image frame irradiates so as to compensate a brightness distribution of the image frame.