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. 09, 2017
Filed:
Nov. 03, 2011
Chih-hung LU, Hsin-Chu, TW;
Hsin-chia Chen, Hsin-Chu, TW;
En-feng Hsu, Hsin-Chu, TW;
Chi-chieh Liao, Hsin-Chu, TW;
Ren-hau Gu, Hsin-Chu, TW;
Shu-sian Yang, Hsin-Chu, TW;
Yu-hao Huang, Hsin-Chu, TW;
Chih-Hung Lu, Hsin-Chu, TW;
Hsin-Chia Chen, Hsin-Chu, TW;
En-Feng Hsu, Hsin-Chu, TW;
Chi-Chieh Liao, Hsin-Chu, TW;
Ren-Hau Gu, Hsin-Chu, TW;
Shu-Sian Yang, Hsin-Chu, TW;
Yu-Hao Huang, Hsin-Chu, TW;
PixArt Imaging Inc., Hsin-Chu, TW;
Abstract
Optical touch display system includes a light source, a reflector, an image sensor, and a processing device. The light source emits light to at least one object directly and emits light to the at least one object via the reflector at the same time. Then the image sensor receives light reflected from the at least one object directly and light reflected via the reflector simultaneously to form a set of imaging objects which have similar color parameters on an image. Then the processing device produces a set of still image parameters of the image objects such as gravity centers and border boundaries. Based on the still image parameters, the processing device determines the coordinates of the least one object on the optical touch display.