Optical identification card system

Details Optical identification card system Optical identification card system

1987-07-22

1989-08-01

Pellinen, A. D.

Registers

Coded record sensors

Particular sensor structure

235382, 235454, 235487, 235491, G06K 710

Patent

active

048535249

ABSTRACT:
The present invention concerning the Optical Identification Card System is provided with an individual card which emits infrared light modulated by the individual code and a detector which receives this infrared modulated light and detects the individual code. When a request signal is radiated from this detector as infrared light from the above within the prescribed light-emitting area, the said infrared modulated light is radiated from the individual card within the light-emitting area and thus the individual code is detected by the detector. Then the detected individual code is identified by the identifier, and on the basis of this identification result, the terminal equipment related to the holder of the individual card is actuated, thereby automatically locking and unlocking the door.

REFERENCES:
patent: 4202491 (1980-05-01), Sozuki

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