Communications: electrical – Continuously variable indicating – With meter reading
Patent
1996-12-04
2000-08-22
Holloway, III, Edwin C.
Communications: electrical
Continuously variable indicating
With meter reading
235380, 235454, 235491, E05B 4700
Patent
active
061079316
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.
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