Optical key and lock code authentication

Details Optical key and lock code authentication Optical key and lock code authentication

1994-08-11

1996-08-06

Wong, Peter S.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

34082531, E05B 4700

Patent

active

055436650

ABSTRACT:
In an electrical switch which includes a key for its operation. The key includes a code which is specific to a specific switch. The switch includes illumination means for illuminating the key carried code, a scanning device for reading the key code, electronic circuits for comparing the key code with the proper key code for that specific lock, and responding to a correct key by allowing the switch to close electrically or to an incorrect key which prevents the switch from closing electrically and can turn on an alarm.

REFERENCES:
patent: 4139889 (1979-02-01), Ingels
patent: 4673914 (1987-06-01), Lee
patent: 4918955 (1990-04-01), Kimura et al.
patent: 4985694 (1991-01-01), Sunami
patent: 5132661 (1992-07-01), Pinnow
patent: 5254842 (1993-09-01), Power et al.

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