Radio frequency induced power reception management for a radio frequency identity (RFID) chip embedded in a mobile communication device
First Claim
1. A mobile communication device, comprising:
- a motherboard comprising a communication bus;
a cellular radio frequency transceiver connected to the communication bus of the motherboard;
a plurality of antennas, at least one of the antennas communicatively coupled to the cellular radio frequency transceiver;
a processor connected to the communication bus of the motherboard;
a radio frequency identity (RFID) chip connected to the communication bus of the motherboard, wherein the RFID chip comprises a memory, provides wireless read access to the memory, and provides write access to the memory to the communication bus of the motherboard;
an antenna switch to selectably couple at least one of the antennas to the RFID chip; and
an application that selects the antenna switch to couple one of the antennas to the RFID chip based on a state of the mobile communication device, wherein the antenna switch selectably couples a first one of the antennas to the RFID chip to provide power induced in the antenna by a radio frequency field radiated outside of the mobile communication device and couples a second one of the antennas to the RFID chip to provide wireless read access to the memory.
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Accused Products
Abstract
A mobile communication device. The mobile communication device comprises a motherboard comprising a communication bus, a cellular radio frequency transceiver connected to the communication bus, a plurality of antennas, at least one of the antennas communicatively coupled to the cellular radio frequency transceiver, and a processor connected to the communication bus. The mobile communication device further comprises a radio frequency identity (RFID) chip connected to the communication bus, wherein the RFID chip comprises a memory, provides wireless read access to the memory, and provides write access to the memory to the communication bus. The mobile communication device further comprises an antenna switch to selectably couple at least one of the antennas to the RFID chip and an application that selects the antenna switch to couple one of the antennas to the RFID chip based on a state of the mobile communication device.
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Citations
17 Claims
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1. A mobile communication device, comprising:
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a motherboard comprising a communication bus; a cellular radio frequency transceiver connected to the communication bus of the motherboard; a plurality of antennas, at least one of the antennas communicatively coupled to the cellular radio frequency transceiver; a processor connected to the communication bus of the motherboard; a radio frequency identity (RFID) chip connected to the communication bus of the motherboard, wherein the RFID chip comprises a memory, provides wireless read access to the memory, and provides write access to the memory to the communication bus of the motherboard; an antenna switch to selectably couple at least one of the antennas to the RFID chip; and an application that selects the antenna switch to couple one of the antennas to the RFID chip based on a state of the mobile communication device, wherein the antenna switch selectably couples a first one of the antennas to the RFID chip to provide power induced in the antenna by a radio frequency field radiated outside of the mobile communication device and couples a second one of the antennas to the RFID chip to provide wireless read access to the memory. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A mobile communication device, comprising:
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a motherboard comprising a communication bus; a cellular radio frequency transceiver connected to the communication bus of the motherboard; a plurality of antennas, at least one of the antennas communicatively coupled to the cellular radio frequency transceiver; a processor connected to the communication bus of the motherboard; a radio frequency identity (RFID) chip connected to the communication bus of the motherboard, wherein the RFID chip comprises a memory that stores data about an activation state of the mobile communication device, provides wireless read access to the memory, and provides write access to the memory to the communication bus of the motherboard; an antenna switch to selectably couple at least one of the antennas to the RFID chip; and an application that selects the antenna switch to couple one of the antennas to the RFID chip based on the activation state of the mobile communication device stored in the memory and based in part on the mobile communication device being engaged in voice communication via the cellular radio frequency transceiver, wherein the application selects the antenna switch to couple a first one of the antennas to the RFID chip based on the mobile communication device being engaged in voice communication via the cellular radio frequency transceiver and selects the antenna switch to couple a second one of the antennas to the RFID chip based on the mobile communication device being engaged in data communication via the cellular radio frequency transceiver. - View Dependent Claims (8, 9, 10)
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11. A mobile communication device, comprising:
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a motherboard comprising a communication bus; a cellular radio frequency transceiver connected to the communication bus of the motherboard; a plurality of antennas, at least one of the antennas communicatively coupled to the cellular radio frequency transceiver; a processor connected to the communication bus of the motherboard; a radio frequency identity (RFID) chip connected to the communication bus of the motherboard, wherein the RFID chip comprises a memory, provides wireless read access to the memory, and provides write access to the memory to the communication bus of the motherboard; a power dissipation filter; an antenna switch to selectably couple one of the antennas to the RFID chip and to selectably couple the antenna to the power dissipation filter; and an application that selects the antenna switch to couple the antenna to the RFID chip based on a state of the mobile communication device and that selects the antenna switch to couple the antenna to the power dissipation filter when an induced power level delivered to the RFID chip exceeds a pre-defined threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification