Methods and systems for detecting selections on a touch screen display
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United States of America Patent
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Dec 8, 2009
Grant Date -
Feb 1, 2007
app pub date -
Jul 29, 2005
filing date -
Jul 29, 2005
priority date (Note) -
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Abstract
Light beam focusing components direct light from the top surface of a touch screen display to one or more imagers. The imager or imagers capture one or more images of the top surface of the touch screen display. A processing unit analyzes the image or images to determine the position of an input device on or near the top surface of the touch screen display.
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