| 发明名称 |
Detecting light to determine position of object |
| 摘要 |
Infrared light is emitted towards a surface. The infrared light is redirected by an object positioned on the surface. The infrared light as redirected by the objected is detected. A position of the object on the surface is determined based on the infrared light detected.
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| 申请公布号 |
US7839384(B2) |
申请公布日期 |
2010.11.23 |
| 申请号 |
US20050065776 |
申请日期 |
2005.02.26 |
| 申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
BLYTHE MICHAEL M.;THIELMAN JEFFREY |
| 分类号 |
G09G5/08 |
主分类号 |
G09G5/08 |
| 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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