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. 10, 2014
Filed:
Aug. 06, 2012
Chun-wei Wang, Taipei, TW;
Chun-Wei Wang, Taipei, TW;
Wistron Corporation, New Taipei, TW;
Abstract
An optical touch display, a calibration apparatus, and a calibration method thereof are disclosed. The calibration method is used for calibrating the optical touch display, and the optical touch display has a plurality of image detecting sensors. The calibration method includes the following steps: generating a plurality of calibration points; generating a plurality of representative calibration points from the plurality of calibration points; obtaining a first image position of each representative calibration point via the plurality of image detecting sensors; constructing a coordinate transformation mechanism for transforming the first image position into a first screen position; calculating a relative position between the representative calibration points and its neighboring calibration points; calculating a second image position of each calibration point based on the relative position; and calculating a second screen position by using the transformation mechanism and the second image position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile