POINTER SPEED ADJUSTING METHOD AND DISPLAY SYSTEM USING THE SAME
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United States of America Patent
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Issued Date -
Mar 20, 2014
app pub date -
Sep 27, 2012
filing date -
Jan 4, 2012
priority date (Note) -
Abandoned
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Abstract
A pointer speed adjusting method is used in a display system including a pen-shaped pointing device and a display screen. The pointer speed adjusting method includes the following steps. Firstly, a moving trajectory of the pen-shaped pointing device is sensed. Then, a trajectory display pattern is obtained according to the moving trajectory. Then, the trajectory display pattern is compared with a reference display pattern shown on the display screen, so that an optical scale factor error is obtained. Afterwards, a speed conversion ratio is adjusted according to the optical scale factor error.
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