Contactless card that receives power from host device
First Claim
Patent Images
1. A card comprising:
- a memory card slot interface;
a memory card controller coupled to the memory card slot interface;
a contactless communications device coupled to the memory card controller, the contactless communications device having an antenna port;
a power delivery mechanism to deliver power to the contactless communications device from the memory card slot interface; and
a coil coupled to the antenna port of the contactless communications device.
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Abstract
A memory card compatible RFID card includes a smartcard controller that receives power from a host device. The RFID card also includes a small inductive device capable of inductive coupling with an RFID reader. The small inductive device is small enough to fit in the form factor of a memory card. Commands may be sent to the RFID card to keep the RFID card powered.
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Citations
20 Claims
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1. A card comprising:
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a memory card slot interface; a memory card controller coupled to the memory card slot interface; a contactless communications device coupled to the memory card controller, the contactless communications device having an antenna port; a power delivery mechanism to deliver power to the contactless communications device from the memory card slot interface; and a coil coupled to the antenna port of the contactless communications device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A memory card comprising:
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a memory card controller to communicate with a host; a smartcard controller having an antenna port; and an inductive element coupled to the antenna port, wherein the inductive element is too small to provide sufficient energy to power the smartcard controller; wherein the smartcard controller is coupled to receive power from the host. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A mobile payment device comprising:
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a coil to inductively couple with an interrogating radio frequency field transmitted by a mobile payment reader; a dual interface smartcard controller having an antenna port coupled to the coil, the dual interface smartcard controller further coupled to receive power from other than the antenna port; a memory card controller coupled to communicate with the dual interface smartcard controller; and a memory card compatible circuit board upon which the coil, the dual interface smartcard, and the memory card controller are mounted. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification