Optical touch system and control method
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United States of America Patent
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Aug 22, 2017
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N/A
app pub date -
Feb 25, 2014
filing date -
Sep 18, 2013
priority date (Note) -
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Abstract
An optical touch system includes a plurality of touch devices and an electronic device. The electronic device includes a touch display unit configured to generate a plurality of touch points when the plurality of touch devices are contacted thereon, a control unit configured to divide the plurality of touch devices into a plurality of groups according to characteristics of the plurality of touch devices to control or handle operations of the plurality of groups in time division, an optical device configured to obtain images corresponding to touch points generated by touch devices in one of the plurality of groups, and a calculating unit configured to receive the images obtained by the optical device to calculate positions of the touch points corresponding to the images.
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