Payment cards and devices with enhanced magnetic emulators
A payment card (e.g., credit and/or debit card) or other device (e.g., mobile telephone) is provided with a magnetic emulator operable to communicate data to a magnetic stripe read-head. Such a magnetic emulator may comprise non-magnetostrictive material such that the magnetic emulator may be fabricated in a wide variety of fabrication processes. Additionally, magnets may be added to amplify the signal of a magnetic emulator. In doing so, a magnetic emulator may provide a large amount of signal while consuming a reduced amount of electrical energy when compared to a magnetic emulator that does not include the presence of one or more magnets.
1. A card comprising:
an electronic device operable to serially communicate data to an external device comprising:
a first layer of flexible printed circuit board;
a second layer of flexible printed circuit board, wherein a coil is provided across said first and second layers; and
a material located inside of said coil, said material separating at least a portion of said first layer from at least a portion of said second layer.
2. The card of claim 1 , wherein said data communicates a dynamic number that is time-based.
3. The card of claim 1 , wherein said data communicates a dynamic number that is use-based.
4. The card of claim 1 , further comprising a bi-stable display.
5. The card of claim 1 , further comprising a bi-stable display and a non-bistable display.
6. The card of claim 1 , further comprising a non bi-stable display.
7. The card of claim 1 , wherein a property of said material was tested after manufacturing of said electronic device.
8. The card of claim 1 , further comprising:
a processor; and
a plurality of buttons.
9. The card of claim 1 , further comprising:
a processor;
a plurality of buttons;
a battery; and
a display.
10. The card of claim 1 , further comprising a magnet located outside of said coil.
11. The card of claim 1 , further comprising a second material located between said first layer and said second layer.
12. The card of claim 1 , wherein said data includes a track of magnetic stripe data.
13. The card of claim 1 , further comprising a light sensor, wherein second data is received from said light sensor.
14. The card of claim 1 , further comprising a processor and a plurality of magnetic stripe reader read-head detectors.
15. The card of claim 1 , further comprising:
a processor; and
a plurality of capacitive read-head detectors.
16. The card of claim 1 , further comprising:
a magnet located outside of said coil;
a plurality of buttons;
a processor; and
a plurality of capacitive read-head detectors.
17. The card of claim 1 , further comprising:
a magnet located outside of said coil;
a plurality of buttons;
a processor;
a light emitting diode; and
a plurality of capacitive read-head detectors.
18. The card of claim 1 , further comprising:
a plurality of buttons;
a processor;
a light emitting diode;
a plurality of capacitive read-head detectors; and
a device for receiving second data via light.
19. The card of claim 1 , further comprising:
a plurality of buttons;
a processor;
a light emitting diode;
a plurality of capacitive read-head detectors; and
a battery.
20. The card of claim 1 , further comprising:
a plurality of buttons;
a processor;
a light emitting diode;
a plurality of capacitive read-head detectors;
a display; and
a battery.
21. The card of claim 1 , wherein said material is a soft magnetic material.
22. The card of claim 1 , wherein no permanent magnet is located inside of said coil.