Optical touch device and method for calculating coordinate of touch point
An optical touch device utilizes a weighting to integrate two coordinates of a touch point sensed by two sets of image sensing units, so as to calculate an output coordinate of the touch point performed on a central touch area. Accordingly, the invention can effectively prevent a touch trajectory from shifting on the central touch area, such that the touch trajectory will be much smoother on the central touch area.
Wistron Corporation
G G
G06F G06F
inventional inventional
Shih-Wen Yu-Yen Ching-An
Chen Chen Cho