| 摘要 |
<p>PURPOSE:To obtain a picture I/0 device which can obtain a hard copy simultaneously by using a tablet where two insulating flat plates having parallel conductors so that conductors may be orthogonal to each other and a form including conductive color emission materials is inserted between them. CONSTITUTION:Tablet 22 is constituted by inserting a form including conductive color emission materials between insulating flat plates having X and Y conductors. The pattern output from control unit 1 is applied to X and Y-direction selection circuit parts 14-19 through function generator 13 to select X and Y conductors. AC signals from frequency selection circuit 40 are applied to the intersection of X and Y conductors, and the form emits a color corresponding to the AC signal frequency. AC signals from discharge circuit 29 are applied to magnetic substance input pen 27 having coil 26, and the position is detected by scanning circuit parts 32-39 and is applied to control unit 1.</p> |
