Method and System for Obtaining Information about RFID-Equipped Objects
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United States of America Patent
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Issued Date -
N/A
app pub date -
Oct 29, 2007
filing date -
Feb 16, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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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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