发明授权
US07274356B2 Apparatus for determining the location of a pointer within a region of interest
有权
用于确定指针在感兴趣区域内的位置的装置
- 专利标题： Apparatus for determining the location of a pointer within a region of interest
- 专利标题（中）： 用于确定指针在感兴趣区域内的位置的装置
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申请号： US10681330申请日： 2003-10-09
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公开(公告)号： US07274356B2公开(公告)日： 2007-09-25
- 发明人: Chi Man Charles Ung , David Kenneth Booth , Stephen Worthington , Mark Andrew Fletcher , Roberto A. L. Sirotich
- 申请人： Chi Man Charles Ung , David Kenneth Booth , Stephen Worthington , Mark Andrew Fletcher , Roberto A. L. Sirotich
- 申请人地址： CA
- 专利权人： Smart Technologies Inc.
- 当前专利权人： Smart Technologies Inc.
- 当前专利权人地址： CA
- 代理机构： Katten Muchin Rosenman LLP
- 主分类号： G06F3/042
- IPC分类号： G06F3/042 ; G06F3/041 ; G06F3/033 ; G09G5/08
摘要：
An apparatus for detecting a pointer within a region of interest includes a first reflective element extending along a first side of the region of interest and reflecting light towards the region of interest. A second reflective element extends along a second side of the region of interest and reflects light towards the region of interest. The second side is joined to the first side to define a first corner. A non-reflective region generally in the plane of at least one of the first and second reflective elements is adjacent the first corner. At least one imaging device captures images of the region of interest including reflections from the first and second reflective elements.
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