| 摘要 |
<p>PURPOSE:To attain precise positioning easily by detecting the enter of a cursor into a specific area and driving a braking means in an input device for inputting coordinates within a picture through a mouse. CONSTITUTION:A moving distance detecting device detects moving directon and distance on the basis of the rotation of a ball 34 in accordance with the movement of a cursor moving device 29 and a cursor moving device control part 28 converts the detected values into digital values and sends the digital values to a CPU21. The CPU21 moves the cursor on a CRT1, and when the cursor enters menu areas 4-6, a solenoid 32 is driven, a brake is actuated and resistance is applied to the rotation of the ball 34. When the cursor is included within the menu areas, the menu of the cursor position is selected and the brake is released. The enter of the cursor into the menu areas can be detected by operator's hand and the overrun phenomenon of the menu areas is prevented, so that highly accurate positioning can be attained.</p> |
