发明名称 |
Displacement data post-processing and reporting in an optical pointing device |
摘要 |
There is described a method of post-processing and reporting detected displacement in an optical pointing device as well as a sensing device for an optical pointing device implementing this method. Displacement is detected and a first count representative of a magnitude of the detected displacement is accumulated in an associated accumulation unit, this first count representing the magnitude of the detected displacement at a first resolution (or detection resolution). The first count accumulated in the accumulation unit is processed to convert this first count into a report count representing the magnitude of the detected displacement at a second resolution (or reporting resolution) lower than the first resolution. This report count is then reported, for instance to a PC or an external controller. These operations are repeated to generate periodic motion reports at the second resolution. |
申请公布号 |
US2005001817(A1) |
申请公布日期 |
2005.01.06 |
申请号 |
US20030609676 |
申请日期 |
2003.07.01 |
申请人 |
EM MICROELECTRONIC - MARIN SA |
发明人 |
LAUFFENBURGER JAMES HAROLD;AFRIAT GIL;ROTZOLL ROBERT R. |
分类号 |
G06F3/03;G06F3/033;G06F3/038;G06F3/042;(IPC1-7):G09G5/08 |
主分类号 |
G06F3/03 |
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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