Access control system

Details Access control system Access control system

2006-06-07

2011-11-15

Lee, Benjamin C (Department: 2612)

Communications: electrical

Selective

Intelligence comparison for controlling

C340S005200, C340S005280, C340S005500

Reexamination Certificate

active

08058971

ABSTRACT:
An access device for a system having at least one lock that is configured to receive instructions and to energize a lock mechanism to unlock the at least one lock and a computer is disposed at a remote location from the at least one lock and the access device. The computer is connected to a primary wireless communication path. The access device comprises at least one key configured for communicating with the computer via the primary wireless communication path and to communicate with the lock over a secondary wireless communications path and wherein the at least one key further is configured as authorized to unlock the at least one lock absent a de-authorizing instruction from the computer.

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patent: 6472973 (2002-10-01), Harold et al.
patent: 7880584 (2011-02-01), Larson et al.
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patent: 2004/0160304 (2004-08-01), Mosgrove et al.
patent: 2005/0264400 (2005-12-01), Fisher
patent: 2006/0170533 (2006-08-01), Chioiu et al.
patent: 2007/0176739 (2007-08-01), Raheman

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