Electronic transaction card powered by mobile device
AssigneeTyfone, Inc.
InventorsSiva G. Narendra, Prabhakar Tadepalli, Thomas N. Spitzer
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Abstract
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.
Claims20
A memory card compatible with a memory card slot in a mobile phone, the memory card including nonvolatile memory accessible by the mobile phone, and a point-of-sale interface to communicate with a point-of-sale terminal, wherein the point-of-sale interface receives power from the mobile phone.
An apparatus for performing a financial transaction comprising:
- means for communicating through a memory card slot in an intelligent electronic device;
- means for producing at least one time-varying magnetic field to represent financial transaction data, wherein the means for producing receives power from the memory card slot;
- and
- means for storing the financial transaction data.
An electronic transaction card comprising:
- a memory card slot interface;
- and
- circuitry powered by the memory card slot interface for producing a signal compatible with a card reader.
Dependencies are inferred from the claim text.