VALIDATING RADIO FREQUENCY IDENTIFICATION (RFID) ALARM EVENT TAGS

• Main Authors: TRIVELPIECE, Steve E, TORRECILLA PUERTAS, David, BERGMAN, Adam S, RIGGERT, Eric
• Format: Patent
• Language: English
• Published: 01.04.2021
• Subjects: ALARM SYSTEMS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TRANSMISSION

An RFID portal of an EAS system first interrogates a first zone extending into a controlled area beyond a threshold distance from an interrogating antenna of the portal. The portal defines an exit from the controlled area, the threshold distance being less than a width of the exit. The portal first...