Radio frequency identification tag lock and key

Details Radio frequency identification tag lock and key Radio frequency identification tag lock and key

2011-03-15

2011-03-15

Abrishamkar, Kaveh (Department: 2431)

Cryptography

Communication system using cryptography

Wireless communication

C340S568100, C340S572100

Reexamination Certificate

active

07907732

ABSTRACT:
Briefly, in accordance with one embodiment of the invention, a radio frequency identification tag system includes a lock tag to secure an item or an area, and one or more key tags associated with the lock tag to allow access to the item or area or to otherwise validate the lock tag and key tag. A detector allows access or other validation when a valid key tag is determined to be present within a predetermined range of the lock tag.

REFERENCES:
patent: 6577238 (2003-06-01), Whitesmith et al.
patent: 6789194 (2004-09-01), Lapstun et al.
patent: 6957767 (2005-10-01), Aupperle et al.
patent: 6967577 (2005-11-01), Taylor et al.
patent: 6992574 (2006-01-01), Aupperle et al.
patent: 7271715 (2007-09-01), Aupperle et al.
patent: 2002/0008140 (2002-01-01), Reynolds et al.
patent: 2006/0033608 (2006-02-01), Juels et al.

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