| 摘要 |
<p>PURPOSE:To ensure an output of a coordinate data having continuity in response to the shift of a pressing point, by obtaining the deviation between the coordinate data which are successively extracted from the shift of the pressing point and defining only the coordinate data having a deviation less than the prescribed value as a continuous data. CONSTITUTION:The 1st and 2nd resistance films 1 and 2 which are set opposite to each other centering on a spacer. The driving voltage +V is connected via a transistor (TR) Q1 to an electrode 1A of the film 1, and an earth potential is connected to an electrode 1B via a TR Q2 respectively. While the voltage +V is connected via a TR Q3 to an electrode 2A of the film 2, and an earth potential is connected to an electrode 2B via a TR Q4. Then TRs Q1-Q4 are controlled alternately with the outputs of output terminals Q and -Q of an FF1. The signals read out of the films 1 and 2 are converted into the digital value through an A/D converter ADC and then applied to a processor unit PU. A deviation is obtained between the coordinate value data which are read out by an operation processor CPU of the unit PU, and only the coordinate data having a deviation less than the prescribed value is used as a continuous data. Thus a continuous coordinate data is delivered in response to the shift of a pressing point.</p> |
