METHOD FOR IDENTIFYING GESTURE
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United States of America Patent
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Issued Date -
Jul 3, 2014
app pub date -
Apr 3, 2013
filing date -
Jan 2, 2013
priority date (Note) -
Abandoned
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Abstract
The method for identifying a gesture on a touch panel has steps of receiving position information of at least three touch objects; determining whether the position information of any one of the at least three touch objects has been changed; if the position information of any one of the at least three touch objects has been changed, calculating a first sum of distances between the at least three touch objects before moving, then calculating a second sum of distances between the at least three touch objects after moving, and calculating a variation between the first sum and the second sum; and determining whether the variation exceeds a default value, and if the variation exceeds a default value, a first gesture is identified. The first gesture is identified as a grab gesture or a spread gesture based on whether the variation is positive or negative.
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