Mobile phone with electronic transaction card
View Patent ↗An electronic transaction card communicates with an add-on slot of an intelligent electronic device. The add-on slot may be a memory card slot. The intelligent electronic device may be a mobile phone or other device with or without network connectivity. The electronic transaction card may have magnetic field producing circuitry compatible with magnetic card readers, smartcard circuitry, other point-of-sale interfaces, or any combination thereof.
1. A transaction system comprising:
a mobile phone having a memory card slot; and
a memory card compatible with the memory card slot, wherein the memory card includes circuitry to produce a time-varying magnetic field to transmit transaction data to a reader device.
2. The transaction system of claim 1 wherein the memory card includes software to be installed on the mobile phone.
3. The transaction system of claim 1 wherein the software includes a module for single transaction account number generation.
4. The transaction system of claim 1 wherein the memory card includes nonvolatile memory accessible through the memory card slot.
5. The transaction system of claim 1 wherein the memory card includes volatile memory accessible through the memory card slot.
6. The transaction system of claim 1 wherein the circuitry for producing the time-varying magnetic field comprises smartcard circuitry.