| 摘要 |
<p>PURPOSE: A digitizer is provided to generate a coordinate and a switching signal through one tuned frequency. CONSTITUTION: Coil selection units(200,300) offer a coordinate sensing signal of a modulator(400) or a data sensing signal to X-direction loop coils and Y-direction loop coils. A coordinate signal detection circuit(500) detects a coordinates signal. A stylus(800) generates a data signal. A data signal detection circuit(600) detects the data signal from the received signal. An MCU(Micro Controller Unit)(700) respectively generates one or more frequency signals and control signals. The MCU outputs the coordinates signal and a pressure and switching operation to outside.</p> |
