| 摘要 |
<p>PURPOSE:To obtain a coordinate input system having sufficient accuracy and coordinate designating range, by using a tablet being inexpensive and having a small area. CONSTITUTION:When one point of a plane of a tablet 1 is touched with an input pen 2, its coordinate is read by a processor 3. The processor 3 executes various control programs stored in a memory 4. The memory 4 has a program area storing the control program and a work area. A graphic display 5 displys a figure and a character. The tablet 1, the processor 3, the memory 4 and the graphic display 5 are connected to a common bus 6. Thus, the coordinate input system having sufficient accuracy and coordinate designation range is obtained.</p> |
