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:
Feb. 12, 2013
Filed:
Dec. 22, 2010
Jau-yu Chen, Taipei Hsien, TW;
Yu-wen Ting, Taipei Hsien, TW;
Jau-Yu Chen, Taipei Hsien, TW;
Yu-Wen Ting, Taipei Hsien, TW;
Lite-On Semiconductor Corp., Taipei Hsien, TW;
Abstract
A coordinate information correction method for an optical touch panel includes: a) determining a set of to-be-corrected included angle values according to output signals received from light detectors, each of the to-be-corrected included angle values representing an included angle between a base line and a connecting line that extends from a respective one of the light detectors to a location of an object in a light curtain region; b) calculating a set of correction values, each of which is a finite order function of a respective one of the to-be-corrected included angle values; c) calculating a set of corrected included angle values from the set of to-be-corrected included angle values and the set of correction values; and d) generating corrected coordinate information associated with the location of the object in the light curtain region from the corrected included angle values.