External adapter for magnetic stripe card reader
An adaptor in accordance with the present invention allows a conventional magnetic stripe card POS reader to receive information from contact-based or wireless sources while maintaining the concurrent ability of the reader to interact with a magnetic stripe card. In accordance with one embodiment of the present invention, the adaptor includes an inductor capable of generating a magnetic field of sufficient power to couple with a head of a magnetic stripe card reader through the housing of the reader device. In this manner, the adaptor can be positioned external to the reader device, leaving the slot of the reader accessible for conventional interactions with magnetic stripe cards. Selective inductive communication with individual heads of the reader device may exploit their differing sensitivity to external magnetic fields generated by the adaptor.
1. An adaptor for a magnetic stripe card reader comprises an inductor element comprising a rod of ferromagnetic material comprising ferrite encircled within a conductive coil, the inductor element configured to be positioned near a magnetic stripe card reader, and configured to generate a magnetic field of sufficient strength to penetrate a housing of the magnetic stripe card reader and activate a data recovery circuit in electronic communication with a head of the magnetic stripe card reader,
wherein the magnetic stripe card reader further comprises a second magnetic head, the adapter further comprising a second conductive coil, and
wherein the second magnetic reader head exhibits reduced sensitivity to an applied magnetic field than the magnetic head.
2. The adaptor of claim 1 wherein the second conductive coil exhibits a fewer number of windings than the conductive coil.
3. The adaptor of claim 1 configured to be mounted against a side of the magnetic stripe card reader.
4. The adaptor of claim 1 configured to be mounted on a top of the magnetic stripe card reader.