RFID loss-prevention using angle-of-arrival
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United States of America Patent
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Jan 30, 2018
Issued Date -
N/A
app pub date -
Apr 6, 2016
filing date -
May 22, 2014
priority date (Note) -
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Abstract
An RFID loss-prevention system (LPS) permits authorized items to leave a facility and may perform a security action if an unauthorized item leaves the facility. A checkout reader first authorizes an item tagged with an RFID tag to exit a facility by reading an identifier from the tag, obtaining an exit authorization, and sending the identifier to a database. A reader system configured to direct at least two beams along a facility exit path reads tagged items exiting the facility, determines at least one of a travel direction and a tag location, and uses the determination to indicate that a tag is exiting or has exited the facility. The LPS then uses the database to determine if the exiting/exited tag is authorized to leave the facility.
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