| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect the location of two touch points by a resistive touch panel mounted on an electrical or computerized device. <P>SOLUTION: The apparatus comprises a first resistive sheet, and a second resistive sheet disposed in proximity to the first resistive sheet, such that pressure applied at a first touch point and at a second touch point on the first resistive sheet causes flow of electrical current between the first resistive sheet and the second resistive sheet. The apparatus further comprises a control unit coupled to each of a first terminal and to a second terminal, and configured to measure a first resistance between the first terminal and the second terminal, and to estimate a distance between the first touch point and the second touch point. The apparatus further estimates the location of each of the first touch point and the second touch point. <P>COPYRIGHT: (C)2012,JPO&INPIT |
