SYSTEM FOR PROTECTING PIN DATA WHEN USING TOUCH CAPACITIVE TOUCH TECHNOLOGY ON A POINT-OF-SALE TERMINAL OR AN ENCRYPTING PIN PAD DEVICE
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United States of America Patent
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Issued Date -
Sep 11, 2014
app pub date -
May 19, 2014
filing date -
Apr 8, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method for providing security for a point-of-sale (POS) terminal or an encrypting PIN pad (EPP) by protecting the signals that could be directly probed on a touch sensor electrode grid or remotely probed such as through power supply signals or RF emissions, wherein the drive signals are randomly applied to drive electrodes in order to prevent tracking of drive signals, and charge is injected on sense lines to hide PIN data.
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