Method of identifying palm area of a touch panel and a updating method thereof
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United States of America Patent
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Jan 31, 2017
Grant Date -
Apr 21, 2016
app pub date -
Dec 30, 2015
filing date -
May 17, 2011
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Abstract
A method of identifying a palm area for a touch panel has steps of: receiving sensing frame information having multiple touching sensing points from the touch panel; selecting one of the touching sensing points; outwardly extending a distance from an outline of the selected touching sensing point to define a searching range; checking whether other touching sensing points are within the searching range; marking the touching sensing points in the searching range and expanding the searching range based on the currently marked touching sensing points; sequentially selecting and checking each touching sensing point if it is within the present searching range; and finally merging all the outlines of the marked touching sensing points to form a final outline as a palm area. Other unmarked touching sensing points are defined as touching reference points.
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