| 摘要 |
<p>PURPOSE:To reset a cursor mark to its original position by accumulating the 2-dimensional coordinate displacement data obtained by a 2-dimensional coordinate displacement data generating means and inputting the accumulated value of displacement with the positive and negative values of a code inverted with each other when the accumulated value of displacement exceeds a fixed level. CONSTITUTION:A coordinate input means 1 is prepared together with a coordi nate displacement data comparison means 3, a coordinate displacement data memory circuit 2, and a code inverted coordinate displacement data input means 4. Thus it is possible to set a cursor mark at its home position without using any special input operation for a graphic processor which performs the graphic processes by reference to the screens and various types of terminal equipments which carry out each job while selecting and pointing the menus displayed on the screens. Therefore, the cursor mark can be reset at a position set before the shift of the mark or at its home position in case the accumulated value of displacement of the 2-dimensional coordinates obtained by the means 1 exceeds a fixed level.</p> |
