RFID tag filtering and monitoring

Details RFID tag filtering and monitoring RFID tag filtering and monitoring

2006-03-23

2008-10-07

Lieu, Julie (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C235S375000, C705S028000

Reexamination Certificate

active

07432811

ABSTRACT:
A Radio Frequency Identification (RFID) system that tracks tags in real-time based on EPC codes and on other priority codes written into transponder memory fields of the tags. As an example, a priority code may be written into a memory of an RFID transponder identifying a high-value item or a small high-value item that is likely to be stolen. Based on the use of this priority code, those items can be preferentially tracked as opposed to items of low value or size such that they are unlikely to be stolen. Such use of priority codes and local filtering alleviates the need to go back to large centralized databases associating unique numbers with other parameters and potentially the history of the item.

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