发明申请
US20090146972A1 APPARATUS AND METHOD FOR DETECTING A POINTER RELATIVE TO A TOUCH SURFACE
审中-公开
用于检测与触摸表面相关的指针的装置和方法
- 专利标题: APPARATUS AND METHOD FOR DETECTING A POINTER RELATIVE TO A TOUCH SURFACE
- 专利标题(中): 用于检测与触摸表面相关的指针的装置和方法
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申请号: US12369904申请日: 2009-02-12
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公开(公告)号: US20090146972A1公开(公告)日: 2009-06-11
- 发明人: GERALD D. MORRISON , David E. Holmgren
- 申请人: GERALD D. MORRISON , David E. Holmgren
- 申请人地址: CA Calgary
- 专利权人: SMART Technologies ULC
- 当前专利权人: SMART Technologies ULC
- 当前专利权人地址: CA Calgary
- 主分类号: G06F3/042
- IPC分类号: G06F3/042 ; G06T15/00
摘要:
An apparatus for detecting a pointer relative to a touch surface includes at least two spaced imaging assemblies having overlapping fields of view encompassing the touch surface. The imaging assemblies see the touch surface in three-dimensions as a perspective view. The imaging assemblies acquire overlapping images from different locations. A processor receives and processes image data generated by at least one of the imaging assemblies to determine the location of the pointer relative to the touch surface.