发明名称 |
DETERMINING THE ORIENTATION OF AN OBJECT |
摘要 |
A touch screen (10) is disclosed comprising a plurality of light emitters (Lo . . . L15) and light detectors (So . . . S11) arranged around a periphery thereof. The position, shape and size of objects (16) may be determined by switching the light emitters on one-by-one and detecting shadows (18) caused by the objects. The objects comprise at least a first part with optical properties of IV a first type and a second part with optical properties of a second different type. By determining the optical phenomena caused by the second part, the orientation of the objects may be determined and/or the objects may be recognized or identified.
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申请公布号 |
US2010066016(A1) |
申请公布日期 |
2010.03.18 |
申请号 |
US20070439294 |
申请日期 |
2007.09.12 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
VAN DE WIJDEVEN SANDER BERNARD FRANCIS;BERGMAN ANTHONIE HENDRIK |
分类号 |
A63F3/00;G01B11/14 |
主分类号 |
A63F3/00 |
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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