RFID device detection system and method

Details RFID device detection system and method RFID device detection system and method

2007-09-25

2007-09-25

Stcyr, Daniel (Department: 2876)

Registers

Systems controlled by data bearing records

Inventory

C235S451000

Reexamination Certificate

active

11414889

ABSTRACT:
An RFID device detection system includes a proximity locator, which generates an electric field for reading an antennaless RFID device, or for reading other, antennaed RFID devices. An antennaless RFID device includes non-antenna conductive leads coupled to a chip. The proximity locator includes one or more conductors forming a transmission line structure arranged to set up a strong RF electric field in proximity to the locator. The strong RF electric field may be a short-range field that provides significant RF energy only over a relatively short distance, when compared with traditional RF fields that are set up over a relatively large distance. The short-range RF field allows coupling to antennaed and antennaless RFID devices that are near to the proximity locator. The RFID device detection system may be employed in a variety of tasks, including inventory control and theft detection.

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