| 摘要 |
In the present invention, with a regular input operation, a first detection circuit is activated, distances d between detection electrodes and a pointing device are derived directly from reception levels Vi of first alternating current detection signals which manifest in the detection electrodes, and an input operation position is detected. When a multitouch operation is detected with the first detection circuit, a mutual capacitance second detection circuit is activated and the input operation positions are detected, allowing detection of each of the input operation positions of the multitouch operation without the problem of ghost points occurring. |
