Patent ID: 8002193

Claim:
A payment card, comprising: a receiver to receive an external electro-magnetic signal, said receiver operable to convert said electro-magnetic signal to an electrical signal for powering the payment card; a CPU coupled with the electrical signal of the receiver, the CPU operable to generate one or more data signals; a display to receive at least one of the one or more data signals from the CPU, wherein the display is operable to display data persistently and to receive power based on the electrical signal from the receiver; and a dynamic magnetic stripe to store magnetically readable data, the dynamic magnetic stripe operable to receive at least one of the one or more data signals from the CPU, wherein the dynamic magnetic stripe is further operable to receive power based on the electrical signal from the receiver; wherein, responsive to the electro-magnetic signal received by the payment card, the CPU changes the data displayed on the display and the CPU changes the magnetically readable data stored by the dynamic magnetic stripe.