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:
Jun. 28, 2016
Filed:
Aug. 29, 2014
Pixart Imaging Inc., Hsin-Chu County, TW;
Yu-Chia Lin, Hsin-Chu County, TW;
Yu-Hsiang Huang, Hsin-Chu County, TW;
Pixart Imaging Inc., Hsin-Chu County, TW;
Abstract
An optical touch system including a touch surface, a plurality of image sensors, a calculation unit and an identification unit is provided. The touch surface is for interactive operation with an object. Each of the image sensors is configured to capture an image frame looking across the touch surface. The calculation unit is configured to calculate a coordinate of the object and an operating depth of the object corresponding to each of the image sensors according to the image frame. The identification unit is configured to increase a count value when the coordinate is within an operable range of one of the image sensors and the operating depth corresponding to the image sensor exceeds a depth threshold to accordingly perform hovering identification according to the count value.