| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a pen input interface device which is short in detection time and is high in detection accuracy by providing each specified coordinate input board, signal impression means, signal detection means and coordinate detection means. SOLUTION: On each row electrode 101, row signals specifying rows are successively impressed. On plural column electrodes 102, each of the block signal specifying a pertinent block for each column electrode 102 within each block and the column signal specifying the column within the block are successively impressed by a block unit. The column electrodes are sectioned and controlled into m blocks for every n. In this case, a signal impressing circuit 107 corresponds to each block A signal detection means 104 is abutted on the coordinate input board 103 on which this signal is impressed, and a line signal, a block signal and a column signal are detected from the row electrode 101 and the column electrode 102 of the abutting location. Based on the detection signal, the coordinate on the coordinate input board 103 on which the signal detection means 104 is abutted is detected by a coordinate detection means 105.</p> |
