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US Patent 8493332 Method and system for calibrating an acoustic touchscreen

Patent 8493332 was granted and assigned to Elo Touch Solutions on July, 2013 by the United States Patent and Trademark Office.

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Patent abstract

A method for calibrating an Acoustic Pulse Recognition (APR) touchscreen comprises touching an APR touchscreen at N comparison touch points. N audio profiles are acquired, and each of the N audio profiles are associated with one of the N comparison touch points. A predetermined calibration file is selected based on the N audio profiles. The predetermined calibration file comprises audio profiles associated with coordinate locations on the touchscreen.

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