发明名称 |
Panel sensing device and positioning location searching method of the same |
摘要 |
A panel sensing device and a positioning location searching method of the same are disclosed. A control unit serves to provide at least one reference voltage and at least one reference voltage with opposite phase. Thereby, a plurality of position blocks are defined by the electric field distributions produced by the reference voltages. A sensing pen is used to touch the sensing plate for sensing the object voltage of a touch position. The control unit searches the touch position according to the phase and level of the object voltage and the reference voltages.
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申请公布号 |
US7038666(B2) |
申请公布日期 |
2006.05.02 |
申请号 |
US20030373744 |
申请日期 |
2003.02.27 |
申请人 |
SUNPLUS TECHNOLOGY CO., LTD. |
发明人 |
LO LIH SHANG;LIAO TUNG TSAI |
分类号 |
G09G5/00;G06F3/033;G06F3/044 |
主分类号 |
G09G5/00 |
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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