| 摘要 |
<p>PURPOSE:To make a device small-sized and light-weight by constituting the device of a movement detecting mechanism and an input selecting mechanism and providing plural sets of acceleration sensors, two-stage integrators, binarizers, operation reset switches for integrators as the movement detecting mechanism. CONSTITUTION:When a mouse is moved from the left to the right and from the right to the left, the output of an acceleration sensor 31 is as shown by A. At this time, the output of an integrator 42 is a signal as shown by B, and this signal is inputted to a first nonlinear element block 43 to take out a positive part as shown by C. The signal is inputted to a second nonlinear element block 44 to invert and output a negative component. Signals of blocks 43 and 44 are inputted to integrators 45a and 45b; and when outputs of integrators exceed a certain value, a high level is set by binarizers 46a and 46b and a reset signal is generated, and therefore, the output of the integrator 45 has a saw tooth wave as shown by D. At this time, pulses are outputted from the binarizer 46a in proportion to the extent of movement in the positive direction. Thus, the mouse is constituted without mechanical parts.</p> |
