Provisioning wearable device with current carrying conductor to produce time-varying magnetic field
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 method performed by a wearable device, the method comprising:
receiving a communication over a network; and
in response to the communication, programming circuitry in the wearable device to drive a conductor with a time-varying current to produce a time-varying magnetic field that emulates a swipe of a magnetic card, wherein the time-varying magnetic field represents a 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.
2. The method of claim 1 wherein the time-varying magnetic field represents a point-of-sale transaction.
3. The method of claim 1 wherein the time-varying magnet field represents an access transaction.
4. The method of claim 1 wherein the time-varying magnet field represents a credit card transaction.
5. The method of claim 1 wherein receiving a communication over a network comprises receiving a communication over a cellular network.
6. The method of claim 1 wherein the wearable device comprises a watch.
7. A method performed by a wearable device, the method comprising:
receiving a communication over a network;
in response to the communication, programming a memory in the wearable device with a transaction number; and
driving a conductor with a time-varying current to produce 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.
8. The method of claim 7 wherein the time-varying magnetic field represents a point-of-sale transaction.
9. The method of claim 7 wherein the time-varying magnet field represents an access transaction.
10. The method of claim 7 wherein the time-varying magnet field represents a credit card transaction.
11. The method of claim 7 wherein receiving a communication over a network comprises receiving a communication over a cellular network.
12. The method of claim 7 wherein the wearable device comprises a watch.
13. A method performed by a wearable device, the method comprising:
receiving a transaction number over a network;
programming a memory in the wearable device with the transaction number; and
driving a conductor with a time-varying current to produce 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.
14. The method of claim 13 wherein the time-varying magnetic field represents a point-of-sale transaction.
15. The method of claim 13 wherein the time-varying magnet field represents an access transaction.
16. The method of claim 13 wherein the time-varying magnet field represents a credit card transaction.
17. The method of claim 13 wherein receiving a communication over a network comprises receiving a communication over a cellular network.
18. The method of claim 13 wherein the wearable device comprises a watch.