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US 7,581,678 B2Granted
Electronic transaction card
AssigneeTyfone, Inc.
InventorsSiva G. Narendra, Thomas N. Spitzer, Prabhakar Tadepalli
Life of this patent
Estimating the term…
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.
Claims17
An apparatus comprising:
- a stripe to communicate with a magnetic card reader;
- and
- a memory card interface to communicate with an intelligent electronic device, the memory card interface being compatible with an add-on slot in an intelligent electronic device;
- wherein the apparatus has dimensions smaller than a credit card, and wherein the stripe includes circuitry to produce at least one time-varying magnetic field.
1 more element
An apparatus comprising:
- a stripe to communicate with a magnetic card reader;
- a memory card interface to communicate with an intelligent electronic device, the memory card interface being compatible with an add-on slot in an intelligent electronic device;
- a processing element coupled to the interface and to the stripe;
- and
- a memory element to hold programming information for the stripe;
- wherein the apparatus has dimensions smaller than a credit card.
3 more elements
An apparatus comprising:
- means for communicating through a memory card slot in an intelligent electronic device;
- circuitry for producing at least one time-varying magnetic field to represent financial transaction data;
- and
- means for storing the financial transaction data.
1 more element
An apparatus 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;
- means for storing the financial transaction data;
- and
- software to be installed on the intelligent electronic device, wherein the software includes a module for single transaction account number generation.
2 more elements
A memory card comprising:
- a memory card slot interface;
- and
- circuitry including at least one conductor for carrying current for producing a time-varying magnetic field compatible with a magnetic card reader.
Dependencies are inferred from the claim text.