| 摘要 |
PROBLEM TO BE SOLVED: To provide a digitizer capable of calculating a coordinate even for a stylus pen (input means) that does not require a complicated internal component such as a coil and a capacitor.SOLUTION: Disclosed herein is a digitizer, including: input means 110 in which a magnet 115 is embedded; a driving coil 120 in which a current flows to induce lines of magnetic force; a sensing coil 130 in which a voltage is induced by the lines of magnetic force; and a controlling unit supplying the current to the driving coil 120 and measuring the voltage induced in the sensing coil 130. The controlling unit senses the amount of change in the voltage induced in the sensing coil 130 to calculate a coordinate, when the voltage induced in the sensing coil 130 is changed by the magnet 115. |
