Touch positioning method, touch screen, touch system, and display
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United States of America Patent
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Aug 30, 2016
Grant Date -
Jun 27, 2013
app pub date -
Jul 28, 2011
filing date -
Sep 7, 2010
priority date (Note) -
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Abstract
The present invention relates to a touch positioning method, a touch screen, a touch system and a display. The touch positioning method comprises: processing image collected by the first camera to obtain first image data, and processing image collected by the second camera to obtain second image data, wherein the first image data comprise one touch image block, and the second image data comprise at least two touch image blocks; processing the second image data to obtain third image data, the third image data comprising image blocks of two suspected touch objects; obtaining a distance between the two suspected touch objects according to the first image data and the third image data; and obtaining location information of an actual touch object according to the first image data, the third image data and the distance between the two suspected touch objects. The invention may eliminate misjudgment caused by “crack dot” (FIG. 5).
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