Touchscreen for detecting multiple touches
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United States of America Patent
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May 14, 2019
Grant Date -
Feb 23, 2017
app pub date -
Sep 8, 2016
filing date -
Apr 25, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A touchscreen system comprises a touch area. At least one transmitter is positioned proximate to outer edges of the touch area for transmitting first beams in a first direction. At least one beam splitter is positioned proximate to the outer edges of the touch area for splitting the first beams into at least second and third beams that travel through the touch area in at least second and third directions, respectively. The at least one beam splitter comprises a plurality of deflecting elements. Receivers are positioned proximate to the outer edges of the touch area for receiving the at least second and third beams.
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