发明名称 |
TOUCH SENSITIVE SCREEN SYSTEM |
摘要 |
A position signalling system employs a plurality of touch sensitive screens each of which generate analog signals representing the co-ordinates of a position when touched. A selection means is provided to select the screens rapidly in sequence. The analog output signals from the selected screen are fed to analog-to-digital converters. The sequence of selection proceeds rapidly from screen to screen until a screen is detected that is being touched whereupon the selection sequencing pauses to permit the analog-to-digital conversion to be carried out and the resulting digital values to be read out to a computer system. Upon readout of the digital values to the computer system, the screen selection sequencing is again permitted to proceed. Means are provided to indicate whether a selected screen that is being touched was touched the last time the same screen was selected. |
申请公布号 |
DE3277649(D1) |
申请公布日期 |
1987.12.17 |
申请号 |
DE19823277649 |
申请日期 |
1982.06.16 |
申请人 |
FORNEY INTERNATIONAL, INC. |
发明人 |
SLATER, BILLY R. |
分类号 |
G06F3/041;G06F3/033;G06F3/048;(IPC1-7):G06F3/037 |
主分类号 |
G06F3/041 |
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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