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
WO2005006169(A2)
申请公布日期
2005.01.20
申请号
WO2004EP50997
申请日期
2004.06.02
申请人
EM MICROELECTRONIC-MARIN SA;LAUFFENBURGER, JAMES, HAROLD;AFRIAT, GIL;ROTZOLL, ROBERT R.
发明人
LAUFFENBURGER, JAMES, HAROLD;AFRIAT, GIL;ROTZOLL, ROBERT R.