In this paper, we propose a novel RFID reader/writer architecture that dynamically retargets various protocols of RFID by changing configuration software. The proposed architecture is not software defined radio, but parameterized hardware that is specialized in RFID protocols. This architecture consumes lower power than that of software defined radio, because the proposed architecture does not require high performance CPUs. In experiments, we have designed a prototype that can read RFID tags: ISO 15693, ISO 18092 (NFCIP-1), and ISO 18000-4. From experimental results, we showed the prototype read tag IDs which include several kinds of RFIDs. Power consumption of this was also reduced by one-third or less, compared with that of others.
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