| 摘要 |
<p>PURPOSE:To eliminate a noise at a low cost, by inputting a tablet data in a time series manner for plural number of times, providing a deciding frame,and deciding the data having the maximum number existing in the neighborhood of the frame as an output data. CONSTITUTION:An analog data from a tablet 1 is A/D-converted by a clock in an A/D converter 2, and an x-coordinate and a y-coordinate data are set as a pair, then being stored at a buffer 3. At such a time, three pairs of the x-coordinate and the y-coordinate data are sampled in the time series manner by one time of sampling, and are stored at the buffer 3. The data to be outputted is decided by a noise eliminating means 4 on the basis of the data. In the decision of the data, a neighboring frame of frame size (epsilon) against a coordinate data is applied, and the data having a value quite different from others is recognized as the noise by comparing the data in plural data, and the data having the maximum number of the data whose data values are almost equal out of the data obtained from an input, is recognized as a reliable data, and is stored at an output buffer 5.</p> |
