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. 24, 2015
Filed:
May. 03, 2011
Jau-yu Chen, New Taipei, TW;
Chih-hao Chen, New Taipei, TW;
Jau-Yu Chen, New Taipei, TW;
Chih-Hao Chen, New Taipei, TW;
Lite-On Semiconductor Corp., New Taipei, TW;
Abstract
An optical touch panel and a method of detecting touch point positions on an optical touch panel are provided. The optical touch panel includes a processing unit, and at least three optical detectors divided into at least two detector groups. Each of the optical detectors is configured to output a signal indicating intensities of light detected thereby, and is associated with a detection range. The processing unit is configured to receive the signals from the optical detectors, to determine which of the optical detectors detect touch points within the respective detection range according to the signals received by the processing unit, and to obtain an optimum set of coordinates for at least one of the touch points with respect to an optimum detector group which is one of the detector groups formed by the optical detectors that detect the touch points.