Wearable device with current carrying conductor to produce time-varying magnetic field
AssigneeTyfone, Inc.
InventorsSiva G. Narendra, Thomas N. Spitzer, Prabhakar Tadepalli
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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.
Claims17
A wearable device comprising:
- a memory to hold a transaction number;
- and
- a conductor that when excited by a time-varying current produces a time-varying magnetic field that emulates a swipe of a magnetic card, wherein the time-varying magnetic field represents the transaction number and the transaction number is used repeatedly for each emission of the time-varying magnetic field to emulate the swipe of the magnetic card.
A wearable device comprising:
- a memory to hold a transaction number;
- a conductor capable of producing a time-varying magnetic field that emulates a swipe of a magnetic card, wherein the time-varying magnetic field represents the transaction number and the transaction number is used repeatedly for each emission of the time-varying magnetic field to emulate the swipe of the magnetic card;
- and
- a current driver to allow control of the time-varying magnetic field.
A wearable device comprising:
- a memory to hold a transaction number;
- a wire capable of producing a time-varying magnetic field that emulates a swipe of a magnetic card when excited by a reversing polarity current that varies in amplitude, wherein the time-varying magnetic field represents the transaction number and the transaction number is used repeatedly for each emission of the time-varying magnetic field to emulate the swipe of the magnetic card;
- and
- a current driver to allow control of the time-varying magnetic field.
The wearable device of claim 13 further comprising circuitry to receive the transaction number from a network. to 17. The wearable device of claim 16 wherein the circuitry to receive the transaction number from a network comprises circuitry to provide cellular network connectivity.
Dependencies are inferred from the claim text.