| 摘要 |
A mouse (1, 3) comprises a cover (20, 100) and a displacement pad (30, 110) which is displaced upon movement of the mouse over a surface. Displacement transducer means (50, 130), e.g., strain gauges mounted in a parallel arm linkage, are used to ascertain direction of motion. Noise created by sliding motion is monitored by a microphone (71, 140), the output of which is a function of velocity and therefore distance. The microphone may be mounted to the displacement pad, and the pad and microphone covered with a friction and vibration enhancing medium, such as felt (78, 115, 145). The displacement pad may also be suspended in a computer terminal and be "stroked" to achieve displacement and noise. Calculating means (5, 40) produce cursor dot control signals based on displacement and noise. |
