| 摘要 |
<p>PURPOSE:To remove fluctuation caused by the noise of analog electric quantity by sampling the analog electric quantity indicated by an (x) or (y) coordinate, with a time interval shorter than a prescribed time several times at a sampling time of every prescribed time and calculating an input position based on a mean value. CONSTITUTION:The title device is provided with an input pad 11 to output the respective coordinate values of the (x) and (y) coordinates indicating show the input position as an analog electric quantity and a control part 15 to sample the analog electric quantity indicating the (x) and (y) coordinates, outputted from the input pad 11 alternatively every prescribed time and to calculate the input position based on a sampling value. The control part 15 executes the sampling every prescribed time several times with the time interval, which is shorter than the prescribed time, and calculates the input position based on the mean value. Thus, the mean value is almost coincident or approximated with the analog electric quantity when the noise is not overlapped. Then, the fluctuation caused by the noise is eliminated.</p> |
