US 12,136,327 B2
Radio frequency identification (RFID) tag location verification using short range communication
Adam S. Bergman, Boca Raton, FL (US); and Manuel A. Soto, Lake Worth, FL (US)
Assigned to Sensormatic Electronics, LLC, Boca Raton, FL (US)
Filed by Sensormatic Electronics, LLC, Boca Raton, FL (US)
Filed on May 22, 2023, as Appl. No. 18/321,478.
Application 18/321,478 is a continuation of application No. 17/004,926, filed on Aug. 27, 2020, granted, now 11,688,258.
Claims priority of provisional application 62/894,682, filed on Aug. 30, 2019.
Prior Publication US 2023/0298448 A1, Sep. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 4/80 (2018.01); G06K 7/10 (2006.01); G06K 19/07 (2006.01); G08B 13/24 (2006.01); H04B 17/318 (2015.01)
CPC G08B 13/2454 (2013.01) [G06K 7/10366 (2013.01); G06K 19/0723 (2013.01); G08B 13/2451 (2013.01); H04B 17/318 (2015.01); H04W 4/80 (2018.02)] 18 Claims
OG exemplary drawing
 
1. A method of electronic article surveillance (BAS), comprising:
first transmitting, at a first time, a radio frequency identification (RFID) interrogation signal into an RFID interrogation zone of an EAS system;
first receiving at least one RFID response signal from a first RFID tag of the EAS system responding to the interrogation signal;
second transmitting, within a predetermined time interval from the first time, a non-RFID RF signal into a second zone, the second zone and the RFID interrogation zone overlapping to form a zone of interest;
second receiving, from the first RFID tag, an indication that the first RFID tag received the second transmission; and
determining, based on receiving both the at least one RFID response signal from a first RFID tag of the EAS system responding to the interrogation signal and the indication that the first RFID tag received the second transmission, that the first RFID tag is in the zone of interest.