Patent ID: 8305363

Claim:
A sensing system, comprising: a frame comprising a first boundary, a second boundary, a third boundary and a fourth boundary, the first boundary facing to the third boundary, the second boundary facing to the fourth boundary, the frame defining a sensing area therein; a light source module configured for providing light to the sensing area; a first image sensor disposed between two neighboring ends of the first boundary and the second boundary, a sensing range of the first image sensor covering the third boundary and the fourth boundary; a second image sensor disposed between two neighboring ends of the second boundary and the third boundary, a sensing range of the second image sensor covering the first boundary and the fourth boundary; a third image sensor disposed between two neighboring ends of the first boundary and the fourth boundary, a sensing range of the third image sensor covering the second boundary and the third boundary; and a mirror component disposed at the fourth boundary, wherein the mirror component is configured for forming a mirror image of a pointer in the sensing area, and the first image sensor and the second image sensor are configured for sensing optical information of the pointer and the mirror image.