Method and system for obtaining information about...

Details Method and system for obtaining information about... Method and system for obtaining information about...

2011-03-22

2011-03-22

Brown, Vernal U (Department: 2612)

Communications: electrical

Selective

Interrogation response

C307S010100

Reexamination Certificate

active

07911324

ABSTRACT:
Method and arrangement for obtaining information about a radio-frequency identification (RFID) device or an object on which the RFID device is mounted when the RFID device is in a space defined by a frame includes arranging a plurality of antennas on the frame to enable transmission of signals into the space and reception of signals from the space, controlling transmission of signals by the antennas by means of an interrogator, and directing radio frequency signals from at least one of the antennas into the space to cause a RFID device in the space to return a signal if it receives any signal from any of the antennas. The return signals from the RFID device are received, e.g., by the interrogator or an associated receiver, and information about the RFID device or object to which the RFID device is attached is derived based on the return signals.

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