×

Radio frequency induced power reception management for a radio frequency identity (RFID) chip embedded in a mobile communication device

  • US 9,396,424 B1
  • Filed: 11/04/2014
  • Issued: 07/19/2016
  • Est. Priority Date: 11/04/2014
  • Status: Active Grant
First Claim
Patent Images

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.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×