| 摘要 |
<p>PURPOSE:To attain the designation of an editing block by calculating a square area shown by the maximum/minimum values of the X and Y coordinates of plural detected touch positions and designating it roughly on a transparent touch panel. CONSTITUTION:A transparent touch panel 4A is constructed to provide a touch panel group on a matrix as shown in a circle. A sampling circuit 6 always samples cyclically a switch and a touch coordinates detecting part 7 investigates the turn on/off condition of the switch. At the time of turn-on, (x) and (y) component data of the coordinates are addressed on registers (x) and (y). A CPU 2 calculates the coordinates of two points of a diagonal position in order to specify a minimum square including all plural touch coordinates. The document data of a memory 3 corresponding to the square area is stored into an auxiliary memory 8 as a moving object document.</p> |
