发明名称 |
TOUCH SCREEN CALIBRATION SYSTEM AND METHOD |
摘要 |
A touch screen calibration system and method applies a signal to a terminals of a touch screen and applies a calibration impedance to those terminals; the effect of the calibration impedance applied to the terminals is sensed; the X, Y position for each terminal is calculated upon application of the calibration impedance and the offset error for each terminal is calculated and applied to obtain the corrected touch position for a measured touch position; in addition the gain error may be calculated for each terminal and applied to obtain the corrected touch position. |
申请公布号 |
WO03049002(A2) |
申请公布日期 |
2003.06.12 |
申请号 |
WO2002US30859 |
申请日期 |
2002.09.30 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
HAUCK, KARL P.,;HARES, LUKE, D., R. |
分类号 |
G06F3/045;G06F3/033;G06F3/041;G06F3/044 |
主分类号 |
G06F3/045 |
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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