Jianq Chyun IP Office
Optical touch system, method of touch detection and non-transitory computer readable medium recording program instructions
An optical touch system includes a light source module, at least one image detecting module and a processing unit. The light source module provides a detecting light. The detecting light is transmitted in front of the base plane. The image detecting module detects an intensity variation of the detecting light. The image detecting module generates a detecting signal corresponding to the detecting light. When an object approaches or touches the base plane, at least a portion of the detecting light is obstructed by the object. The processing unit determines a position of the object with respect to the base plane according to the detecting signal, and determines that the object approaches or touches the base plane according to an intensity of a portion of the detecting signal corresponding to an obstruction position of the object. A method of touch detection and a computer program product are also provided.
Wistron Corporation
G G
G06F G06F
inventional inventional
Yu-Yen
Chen