发明名称 |
DISPLACEMENT DATA POST-PROCESSING AND REPORTING IN AN OPTICAL POINTING DEVICE |
摘要 |
<p>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.</p> |
申请公布号 |
EP1644814(B1) |
申请公布日期 |
2008.12.17 |
申请号 |
EP20040741710 |
申请日期 |
2004.06.02 |
申请人 |
EM MICROELECTRONIC-MARIN SA |
发明人 |
LAUFFENBURGER, JAMES, HAROLD;AFRIAT, GIL;ROTZOLL, ROBERT R. |
分类号 |
G06F1/32;G06F3/03;G06F3/038;G06F3/042 |
主分类号 |
G06F1/32 |
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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