RFID reader Q-parameter aided by RF power measurement

Details RFID reader Q-parameter aided by RF power measurement RFID reader Q-parameter aided by RF power measurement

2007-01-12

2011-12-13

Brown, Vernal (Department: 2612)

Communications: electrical

Selective

Interrogation response

C340S010300, C340S010500

Reexamination Certificate

active

08077013

ABSTRACT:
RFID tag responses are detected by an RFID reader system. The tag response may be detected based on a reference measurement during a tag silent period and another one during the tag response. This helps determine whether a slot is empty or occupied, in a slotted aloha algorithm. The result is reported to the Q-algorithm for a better decision.

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