CPC G06K 19/073 (2013.01) [G06K 19/071 (2013.01); G06K 19/0723 (2013.01)] | 20 Claims |
1. A payment card, comprising:
a processor, a memory, and a transceiver, wherein:
the transceiver is configured to receive a first signal and a second signal from a payment terminal and transmit a third signal to the payment terminal, and
the processor is configured to:
in response to receiving the first signal, store a set of data on the memory of the payment card, wherein the set of data includes a count number,
in response to receiving the second signal, update the set of data by updating the count number, and
generate the third signal, wherein the third signal includes the set of data.
|