Bio-polymer multi-factor authentication and identification system and related methods
View Patent ↗The invention relates to a smart card that includes an integrated keypad made with a piezoelectric material. A user can press the keypad to generate an electrical signal. A sequence of signals corresponding to a user's personal identification number can be sent to an integrated circuit chip or otherwise compared against a stored PIN to determine if the user has entered the correct PIN.
1. An access card comprising:
a keypad section comprising at least nine key sections comprising a piezoelectric material and a barcode section electrically coupled to the keypad section;
an integrated circuit chip (ICC) electrically coupled to the keypad section by circuitry, wherein a personal identification number (PIN) is stored in the ICC;
wherein applying force to the at least nine key sections generates an electrical current, wherein the ICC transforms the electrical current into a sequence of characters, wherein the ICC is configured to compare the sequence of characters to the PIN.
2. The access card of claim 1 , further comprising a barcode section electrically coupled to the keypad section.
3. The access card of claim 1 , further comprising a plurality of fibers, wherein the plurality of fibers form a bar code in response to the electrical current.
4. The access card of claim 1 , wherein the ICC is configured to generate a reaction current if the sequence of characters does not match the PIN, wherein the reaction current damages the circuitry.
5. The access card of claim 4 , wherein the reaction current resets non-volatile memory within the ICC.