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:
Mar. 15, 2016
Filed:
Aug. 18, 2014
Wistron Corporation, New Taipei, TW;
Wistron Corporation, Hsichih, New Taipei, TW;
Abstract
An optical touch system includes a touch screen; a plurality of light sources for periodically emitting light; a light-emitting element for periodically emitting light when the plurality of light sources are not emitting light; a light-reflecting element, for reflecting light emitted by the plurality of light sources; a plurality of lenses, for capturing a first image during a period when the plurality of light sources are emitting light and capturing a second image during a period when the plurality of light sources are not emitting light; and a processing unit. The processing unit includes a control unit for controlling the plurality of light sources and the light-emitting element; and a computation unit for computing a first location in which the light-emitting element is located and a second location in which the light-reflecting element is located on the touch screen according to the first image and the second image.