US 12,131,614 B2 · Convergence of performance of RFID devices in an electronic article surveillance system

Abstract

RFID devices for use in electronic surveillance article (“EAS”) systems may be differently configured, resulting in different performance at the operating frequency or range of frequencies of an EAS system. The performance of differently configured RFID devices may be converged or rendered substantially similar by testing the performance of such RFID devices in a range of frequencies. At least one of the RFID devices is reconfigured to converge the performance of the RFID devices in the range of frequencies if the performance of the RFID devices is not sufficiently similar. This may include changing the configuration of an antenna, an RFID chip, and/or a non-functional component of an RFID device and/or the location in which an RFID device is associated to an article. Differently configured RFID devices may all be manufactured from the same initial configuration, with different RFID devices being differently processed before incorporation in an EAS system.

Claims25

Dependent claims

A method of configuring radio frequency identification (RFID) devices for use in an electronic article surveillance (EAS) system, the method comprising:

providing a plurality of differently configured sample RFID devices attached to different products monitored by the EAS system;
testing performance of the plurality of differently configured sample RFID devices in a range of frequencies;
comparing the performance of the plurality of differently configured sample RFID devices in the range of frequencies with performance of complementary target RFID devices in the range of frequencies;
reconfiguring one or more of the plurality of differently configured sample RFID devices to converge the performance of the one or more sample RFID devices in the range of frequencies with that of the performance of the complementary target RFID devices in the range of frequencies when the performance of the one or more sample RFID devices in the range of frequencies diverges from that of the performance of the complementary target RFID devices in the range of frequencies;
and
incorporating the one or more sample RFID devices into the EAS system when the performance of the one or more sample RFID devices after reconfiguration aligns with the performance of the complementary target RFID devices or with performance of each other in the range of frequencies.

3 more elements

Dependencies are inferred from the claim text.

Convergence of performance of RFID devices in an electronic article surveillance system

Life of this patent

Convergence of performance of RFID devices in an electronic article surveillance system

Life of this patent

Abstract

Claims25