| 摘要 |
<p>PURPOSE: To quickly and accurately point out a cursor by the slight movement of a pointing dev-ice by displaying the cursor on a screen in accordance with moving distances of X and Y coordinate directions multiplied by respective magnification values. CONSTITUTION: A cursor controller is composed of an X coordinate counter 1, a Y coordinate counter 2, registers 3, 4, multipliers 5, 6, and a control circuit 7. In order to set up to the counter value of the counter 1 to n times and the counter value of the counter 2 to m times, the circuit 7 sends respective multiplied results nx, my of the multipliers 5, 6 to a screen control part, which points out a cursor on a position of the screen corresponding to these data nx, my. When the rate of the coordinate direction having a longer distance is increased before moving the pointing device, the cursor can be quickly and accurately pointed out.</p> |
