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. 22, 2017
Filed:
Feb. 25, 2014
Wistron Corporation, New Taipei, TW;
Chih-Hsiung Chang, New Taipei, TW;
Yi-Shu Chen, New Taipei, TW;
Wistron Corporation, New Taipei, TW;
Abstract
An optical touch system includes a plurality of touch devices and an electronic device. The electronic device includes a touch display unit configured to generate a plurality of touch points when the plurality of touch devices are contacted thereon, a control unit configured to divide the plurality of touch devices into a plurality of groups according to characteristics of the plurality of touch devices to control or handle operations of the plurality of groups in time division, an optical device configured to obtain images corresponding to touch points generated by touch devices in one of the plurality of groups, and a calculating unit configured to receive the images obtained by the optical device to calculate positions of the touch points corresponding to the images.