发明名称 Coordinates input device.
摘要 <p>To present a coordinates input device (21,21a) simplified in construction and outstandingly improved in utility. In a panel member (26) of a coordinates input device (21), a first input unit (24) and a second input unit (25) are set on a pair of transparent electrodes (22,23) and the first input unit (24) allows to input by a member of a relatively large pressing pressure per unit area by using a tapered pen piece. The second input unit (25) allows to input by pressing with a member of a relatively small pressing pressure per unit area such as the finger, not limited to the pen member. To present a coordinates input device (80,81) enhanced in the reading precision of pressing position by accurately measuring the pressing level at the pressing position (A). This device (80,81) possesses a structure in which conductive X-direction resistive film (80a) and Y-direction resistive film (80b) overlap with each other across a tiny clearance, and when the pressing position (A) is pressed, switch opening or closing is controlled by a specified procedure, and the X-direction and Y-direction levels of the contact resistance (RP) obtained by pressing of the position (A) are detected, and when the pressing levels are sufficient, the switch opening or closing is controlled by the next procedure, and the coordinates of the pressing position (A) by measured voltages (VX,VY) can he measured. &lt;IMAGE&gt;</p>
申请公布号 EP0541102(A1) 申请公布日期 1993.05.12
申请号 EP19920118994 申请日期 1992.11.05
申请人 SHARP KABUSHIKI KAISHA 发明人 TSUJIOKA, HIROSHI;HASHIMOTO, KATSUHIKO;SHIRAISHI, NAOKI
分类号 G06F3/033;G06F3/045 主分类号 G06F3/033
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