Method and apparatus for identifying locations of ambiguous multiple touch events
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United States of America Patent
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Issued Date -
May 17, 2007
app pub date -
Nov 15, 2005
filing date -
Nov 15, 2005
priority date (Note) -
Abandoned
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Abstract
Method and apparatus for identifying locations on a touchscreen of at least two touch events that occur within a predetermined time of one another comprises monitoring the touchscreen for touch events. Each touch event occurs at a discrete location on the touchscreen defined by an XY coordinate pair. A coordinate series is generated including at least two X coordinates and at least two Y coordinates when first and second touch events occur within a predetermined time of one another. When a release event occurs, the release event is correlated with one of the X coordinates and one of the Y coordinates in the coordinate series to form a first XY coordinate pair corresponding to the first touch event. The first XY coordinate pair associated with the first touch event is output.
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