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US 7,828,214 B2Granted
Mobile phone with electronic transaction card
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.
Claims6
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.
Dependencies are inferred from the claim text.