Patent ID: 8130082

Claim:
A radio frequency identification (RFID) system, comprising: a read/write terminal adapted and configured to wirelessly exchange data with a radio frequency (RF) tag; and the RF tag, comprised of: an antenna coil adapted and configured to wirelessly exchange data with the read/write terminal; an RF transmitting/receiving unit adapted and configured to modulate and demodulate data exchanged via the antenna coil; a protocol change field programmable gate array (FPGA) unit including a plurality of differently programmed RF transport protocol circuits adapted and configured to process data to be modulated by the RF transmitting/receiving unit and to process data that has been demodulated by the RF transmitting/receiving unit, the FPGA unit being reconfigurable from a first configuration in which the FPGA unit processes data according to a first radio frequency identification (RFID) specification to a second configuration in which the FPGA unit processes data according to a second RFID specification, the second specification being different from the first specification, the reconfiguration from the first configuration to the second configuration being accomplished by programming code data into the FPGA unit, the protocol change FPGA unit including a plurality of coding cells adapted and configured to store the code data; and a memory unit adapted and configured to store data processed by the FPGA unit, the memory unit including a nonvolatile ferroelectric memory (FeRAM).