OPTICAL TOUCH SCREEN EXPANSION METHOD
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United States of America Patent
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Issued Date -
Dec 5, 2013
app pub date -
Jun 1, 2012
filing date -
Jun 1, 2012
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Abandoned
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Abstract
An optical touch screen expansion method comprises a primary optical touch module setting process and at least one expanded optical touch module setting process that respectively enable a host to acquire original touch position information according to an identification code thereof and work out information of an absolute position of a touch point via a touch position calibration algorithm, whereby the host can simultaneously control several optical touch modules. Therefore, the present invention enables a single host (i.e., identical software) to control several optical touch modules.
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