Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2007-09-25
2007-09-25
Mullen, Thomas (Department: 2612)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C340S505000, C340S539160, C340S539210, C340S572400, C340S010200, C340S010600
Reexamination Certificate
active
10877562
ABSTRACT:
A master controller for managing items tagged with radio-frequency identification (RFID) tags includes a transceiver to transmit interrogation signals to the RFID tags and to receive response signals from the RFID tags. The master controller may also include a processor to determine the proximity of tagged items based on signal levels of the response signals, and to notify a user when certain ones of the tagged items are in a predetermined relation to a proximity threshold.
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Crawford R. Harold
Deshmukh Jeetendra G.
Deshpande Nikhil M.
Fowler John D.
Velhal Ravindra V.
Mullen Thomas
Schwegman Lundberg & Woessner, P.A.
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