Lock module using colored light rays to identify the...

Details Lock module using colored light rays to identify the... Lock module using colored light rays to identify the...

2006-11-21

2006-11-21

Zimmerman, Brian (Department: 2612)

Communications: electrical

Selective

Intelligence comparison for controlling

C250S208400, C250S271000

Reexamination Certificate

active

07138903

ABSTRACT:
A lock module includes a transmitting module to continuously transmit multiple colored light rays, a key adapted to be inserted into the keyhole of the lock and having multiple colored optical lenses each permitting a specific colored light ray to pass therethrough and a receiving module to receive, store and compare the colored light rays from the multiple colored optical lenses to identify whether the key inserted into the keyhole is accurate. After an initial process of storing the sequence of the colored light rays by the receiving module, the receiving module is able to use stored information to compare the colored light rays subsequently passing through the colored optical lenses of another key to check whether the subsequent key is the accurate key.

REFERENCES:
patent: 3671752 (1972-06-01), Bostrom
patent: 3902342 (1975-09-01), Zucker et al.
patent: 4625100 (1986-11-01), Smith
patent: 4871909 (1989-10-01), Kokubu
patent: 5838232 (1998-11-01), Kim et al.
patent: 6879242 (2005-04-01), Alon

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