Magnetic stripe emulator for persistently emulating magnetic stripe data

摘要

A proxy card for persistently emulating a set of magnetic stripe data associated with a payment card is disclosed. The proxy card provides a magnetic stripe emulator that includes a plurality of parallel traces of conductive material oriented in a direction perpendicular to a direction in which the proxy payment card is designed to be swiped. The parallel traces are coated with a layer of a magnetic medium of low coercivity. A microcontroller on the proxy card generates electrical signals to drive electrical current along each of the plurality of parallel traces in a selected direction. The electrical current causes alignment of particles in the magnetic medium of the magnetic stripe emulator which encodes the set of magnetic stripe data on the magnetic stripe emulator. The proxy card can then emulate the payment card when swiped through a magnetic card reader without consuming any power.