Positioning method for optical touch device and optical touch device

Positioning method for optical touch device and optical touch device

  • CN 102,129,326 B
  • Filed: 01/19/2010
  • Issued: 03/25/2015
  • Est. Priority Date: 01/19/2010
  • Status: Active Grant
First Claim
Patent Images

1. the localization method of an optical touch control apparatus, be applicable to an optical touch control apparatus with a sensing region, to calculate the position being positioned at a shade of this sensing region, this optical touch control apparatus comprises multiple image detecting element, each this image detecting element comprises multiple pixels of direction arrangement along a straight line, it is characterized in that the localization method of this optical touch control apparatus comprises:

  • Those pixels of each this image detecting element are at least divided into one first group and one second group, this detecting visual field of first group and this detecting visual field non-overlapping copies of second group, wherein for each this image detecting element, the dim spot that this shade in this sensing region only causes, when detecting this dim spot that this shade causes for this first group, the position of this dim spot is calculated by one first algorithm, and when detecting this dim spot that this shade causes for this second group, calculate the position of this dim spot by one second algorithm.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×