Harness, Dickey & Pierce, P.L.C.
Touch screen having a filter for filtering interfering light signals
A touch screen and a multi-channel sampling method thereof are disclosed. The touch screen comprises infrared-emitting diodes, infrared-receiving diodes, a touch detection region, first-stage processing circuits, and a second-stage processing circuit. At least two infrared-receiving diodes receive infrared light emitted from the same infrared light-emitting diode simultaneously, and the at least two infrared-receiving diodes output the received signals to the second-stage processing circuit for processing after the first-stage processing circuits filter out interfering light signals. The touch screen and the multi-channel sampling method thereof according to the present invention can be used to increase the multi-channel sampling rate of the touch screen.
BEIJING IRTOUCH SYSTEMS CO., LTD
G G G G
G06F G06F G06F G06F
inventional inventional inventional inventional
Xinlin Jianjun Xinbin
Ye Liu Liu