发明名称 |
Optical navigation upon grainy surfaces using multiple navigation sensors |
摘要 |
A mouse for navigating upon grainy surfaces is equipped with at least two optical navigation circuits having different views of the work surface and whose axes may be non-parallel. For each navigation circuit an indication of navigation impairment owing to grain is detected. A suitable algorithm chooses from among the various navigation circuits which one's output to use. The multiple optical navigation circuits can each be separate self-contained mechanisms on separate dies or they can be separate sections of a single integrated circuit. The various metrics used within a navigation circuit for spatial filter selection can be further used by the navigation circuit selection algorithm. Each optical navigation circuit can have its own light source, or they can share a common one. They may also share any imaging optics, although each navigation sensor sees a different image. If the optical navigation sensors have non-parallel axes, their indications of incremental movement are converted to a common framework within the mouse as an adjunct to the navigation selection algorithm.
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申请公布号 |
US6657184(B2) |
申请公布日期 |
2003.12.02 |
申请号 |
US20010000604 |
申请日期 |
2001.10.23 |
申请人 |
AGILENT TECHNOLOGIES, INC. |
发明人 |
ANDERSON MARK A;MISEK BRIAN J.;NORSKOG ALLEN C.;DIETZ ZACHARY |
分类号 |
G06F3/03;G06F3/033;G06F3/038;(IPC1-7):G06M7/00;G09G5/08;H04N1/024 |
主分类号 |
G06F3/03 |
代理机构 |
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主权项 |
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