The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2000
Filed:
Dec. 04, 1996
Applicant:
Inventor:
James A Nicholson, Havre, MT (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
34082531 ; 235380 ; 235454 ; 235491 ;
Abstract
The present invention provides for access systems and methods for identifying an authentic key. An embodiment of the access system includes a key having at least one phosphorescent material, the at least one phosphorescent material being operable to emit at least one response photon; a photon receptor coupled with the key, the photon receptor being configured to sample the at least one response photon and generate a representative signal thereof; and a discrimination analyzer coupled with the photon receptor, the discrimination analyzer being operable to generate a control signal responsive to a comparison of the representative signal and a signature code.