| 摘要 |
<p>PURPOSE:To detect the coordinates of plural tablets by a pair of a table control circuit and a stylus pen. CONSTITUTION:This system is provided with two tablets 10a and 10b equipped with coordinate detecting planes for detecting coordinates, stylus pen 22 used for instructing an arbitrary position on the coordinate detecting planes of the tablets 10a and 10b, table control circuit 20 to output a tablet scanning signal for scanning the coordinate detecting planes of the tablets 10a and 10b and to calculate the coordinate position on the coordinate detecting planes instructed by the stylus pen 22, decoder 18 to output a tablet select signal for instructing the tablet defined as the object of scanning, and tablet selecting circuit 16 to select either of the tablets corresponding to the tablet scanning signal outputted from the tablet control circuit 20 and the tablet select signal from the decoder 18 and to scan the coordinate detecting plane of that selected tablet.</p> |
