Jianq Chyun IP Office
Optical touch system, method of touch detection, method of calibration, and computer program product
An optical touch system including a reflecting unit, at least one light emitting module, at least one image detecting module, and a processing unit is provided. The reflecting unit, the light emitting module, and the image detecting module are disposed beside a base plane. The light emitting module provides a first detecting light and a second detecting light with different intensities by turns. The first detecting light and the second detecting light are transmitted to the reflecting unit. The image detecting module generates a first signal and a second signal. When an object approaches or touches the base plane, at least a portion of the first detecting light and a portion of the second detecting light are obstructed by the object. The processing unit determines a position of the object. Additionally, a method of touch detection, a method of calibration, and a computer program product are also provided.
Wistron Corporation
G G
G06F G06F
inventional inventional
Yu-Yen
Chen