| 摘要 |
<p>An infrared touch scanning module is provided to improve the overall scanning speed by alternatively realizing originating signals based on the unit module group concept. So that a transmitting unit and a receiving unit can be alternately adjacent to each other, an infrared unit module is arranged. Driving circuits(301,302) turn on/off the transmitting unit and receiving unit. A sensing unit(304) outputs a discrimination signal and RSSI(Received Signal Strength Indication) of the receiving unit which receives a signal. A control unit(317) divides each infrared unit module into the predetermined number of groups, and controls the transmitting unit so as to sequentially transmit an infrared signal one to one according to each group.</p> |
