Security system

Information security – Access control or authentication – Network

Reexamination Certificate

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Details

C340S005260

Reexamination Certificate

active

07487538

ABSTRACT:
A security system for facilitating transponder carrier identification and tracking within a secure area comprising an RF transponder having a memory in which is stored a unique identifier; the transponder including a transmitter to transmit the unique identifier; a transponder writer operable to send a replacement unique identifier to the transponder, the transponder replacing the identifier in the transponder memory with the replacement identifier; a transponder reader to receive from the transponder at least the unique identifier of the transponder; such that the transponder reader interrogates the transponder and, in response to the interrogation, receives from the transponder at least the unique identifier of the transponder; wherein the location of the transponder is determined from the location of the transponder reader.

REFERENCES:
patent: 4691202 (1987-09-01), Denne et al.
patent: 4746830 (1988-05-01), Holland
patent: 4952928 (1990-08-01), Carroll et al.
patent: 5331580 (1994-07-01), Miller et al.
patent: 5629981 (1997-05-01), Nerlikar
patent: 5640002 (1997-06-01), Ruppert et al.
patent: 5768140 (1998-06-01), Swartz et al.
patent: 5787174 (1998-07-01), Tuttle
patent: 5864580 (1999-01-01), Lowe et al.
patent: 5963134 (1999-10-01), Bowers et al.
patent: 6393045 (2002-05-01), Belcher et al.
patent: 6512478 (2003-01-01), Chien
patent: 6513015 (2003-01-01), Ogasawara
patent: 6744811 (2004-06-01), Kantschuk
patent: 6958677 (2005-10-01), Carter
patent: 7054296 (2006-05-01), Sorrells et al.
American Heritage College Dictionary, Copyright 2002, Houghton Mifflin Company, Fourth Edition, p. 1085.

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