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US 10,949,726 B2Granted
Mobile phone with NFC apparatus that does not rely on power derived from an interrogating RF field
AssigneeiCashe, Inc.
InventorsSiva G. Narendra, Saurav Chakraborty, Prabhakar Tadepalli
Life of this patent
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Abstract
A mobile phone includes a smartcard controller that does not rely on power received from an interrogating RF field. The mobile phone also includes a small inductive device capable of inductive coupling with an RFID reader. The smartcard controller includes circuitry to modulate an impedance of a port coupled to the inductive element when in the presence of an interrogating RF field at substantially 13.56 MHz.
Claims13
A mobile phone comprising:
- an inductive element to interact with a near field communication (NFC) reader;
- and
- a smartcard controller coupled to the inductive element, wherein the smartcard controller is coupled to receive power from the mobile phone.
A mobile phone comprising:
- an inductive element to interact with an NFC reader when in a presence of an interrogating RF field;
- and
- a smartcard controller coupled to the inductive element to communicate with the NFC reader without relying on energy from the interrogating RF field.
A mobile phone comprising:
- an inductive device to interact with an NFC reader when in a presence of an interrogating RF field;
- and
- a smartcard controller coupled to the inductive device to communicate with the NFC reader without deriving energy from the interrogating RF field.
Dependencies are inferred from the claim text.