RFID verifier system with grade classification

Details RFID verifier system with grade classification RFID verifier system with grade classification

2008-07-15

2008-07-15

Barbee, Manuel L. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Quality evaluation

C702S109000, C340S010100

Reexamination Certificate

active

07400989

ABSTRACT:
An RFID verifier includes a transmit signal strength indicator (TSSI) and a receive signal strength indicator (RSSI). Using the TSSI, the RFID verifier may determine the amount of power an interrogated RFID tag is illuminated with. Similarly, using the RSSI, the RFID verifier may determine the amount of power returned to the RFID verifier by the RFID tag. By processing the returned power and the illuminating power with a transfer function, the RFID verifier may provide an absolute indicia of quality for the interrogated RFID tag.

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patent: WO 2004/034309 (2004-04-01), None
patent: WO 2004034309 (2004-04-01), None
EP Search Report, Jan. 17, 2006, EP 05255990.

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