Patent ID: 8672222
Filing Date: 2014-03-18
Classification: G06K,G06Q

Abstract:
1. An RFID-based read field, comprising: an RFID reader adapted to emit a signal; a plurality of RFID-readable infrastructure tags, wherein at least one of the infrastructure tags is adapted to emit a return signal upon receiving a signal from the RFID reader and at least one of the infrastructure tags is adapted to emit a non-signal or no reading upon receiving a signal from the RFID reader; and a system controller associated with the RFID reader and programmed to compare any return signal or non-signal received by the RFID reader to an expected return signal, non-signal, or no reading and adjust at least one of the performance parameters of the RFID reader if the return signal or non-signal is different from the expected return signal or non-signal.