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Hybrid architecture for radio frequency identification and packet radio communication

  • US 8,610,543 B2
  • Filed: 06/23/2010
  • Issued: 12/17/2013
  • Est. Priority Date: 06/23/2010
  • Status: Active Grant
First Claim
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1. A radio frequency identification (“

  • RFID”

    ) packet radio system, the RFID packet radio system comprising;

    an antenna;

    a radio, the radio configured to receive and transmit packet radio signals and RFID signals, the receiving and the transmitting of the packet radio signals and the RFID signals occurring at a first frequency;

    a processor, the processor configured to be in communication with the radio and to perform signal detection and demodulation, the processor configured to receive an RFID signal at the first frequency;

    a transmit path, the transmit path configured to transport a packet radio signal to be transmitted and an RFID signal to be transmitted, from the radio to the antenna;

    a first receive path, the first receive path configured to transport a received packet radio signal from the antenna to the radio;

    a second receive path different from the first receive path, the second receive path configured to transport a received RFID signal from the antenna to the processor; and

    a coupling mechanism, the coupling mechanism in the transmit path and the second receive path and configured to simultaneously transmit a first RFID signal and receive a second RFID signal enabling the RFID packet radio system to operate in a full duplex mode.

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