发明名称 |
Touch panel display. |
摘要 |
<p>A system which can control a plurality of opto-matrix input devices. Each opto-matrix device uses multiplexed scanning of emitter/detector pairs under control of a separate computer. The output of the opto-matrix input device is analog data which is provided to the computer for conversion to digital by the computer. The computer then determines if a stylus is located in the opto-matrix field, and if so, determines the stylus location by analysis of the received data. <IMAGE></p> |
申请公布号 |
EP0450203(A2) |
申请公布日期 |
1991.10.09 |
申请号 |
EP19900303005 |
申请日期 |
1990.03.20 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BARKER, JOHN HOWARD;LEFRANC, ERNESTO;WILLIAMS, DONALD DORSEY |
分类号 |
G06F3/042;G06F3/033;G06F3/041;G06F3/048 |
主分类号 |
G06F3/042 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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