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Keypad membrane security

  • US 8,432,300 B2
  • Filed: 03/26/2010
  • Issued: 04/30/2013
  • Est. Priority Date: 03/26/2009
  • Status: Active Grant
First Claim
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1. A point-of-sale device comprising:

  • a rubber keypad;

    a printed circuit board (PCB) configured to at least one of store or access transaction data;

    a secure membrane located between the rubber keypad and the printed circuit board, the secure membrane being configured to detect an interruption in a conductive circuit of the secure membrane;

    at least one switch contact connected to the PCB;

    a spacer layer connected to the PCB on a first side and to the secure membrane on a second side, the spacer layer comprising a via; and

    a switch shorting bar attached to the secure membrane adjacent the PCB, the switch shorting bar being spaced apart from the at least one switch contact.

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  • 6 Assignments
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