Multi-denomination currency validator employing a plural selecti

Details Multi-denomination currency validator employing a plural selecti Multi-denomination currency validator employing a plural selecti

1984-10-04

1987-02-24

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

209534, 356 71, 382 7, 382 31, G06K 500

Patent

active

046459367

ABSTRACT:
A detection system for utilization with a paper security or currency validation apparatus wherein a correlation is made between reference patterns and cross hatch lines located in the portrait background on the paper and the presence of one of two paper currencies is determined. Fundamentally the invention consists of a single reticle which contains a lens whereon are located the cross hatch references for two different paper currency denominations. Within the reticle assembly are located two photosensitive cells, one for each reference pattern. Each photosensitive cell is connected to its own authenticating circuitry which validates the presence of a specific paper currency note. Should the tested paper pass the authenticity test of one authenticity circuitry, the other is disabled. Should the tested paper fail both authenticating tests, it is rejected.

REFERENCES:
patent: 3876304 (1975-04-01), Novak
patent: 4023010 (1977-05-01), Horst
patent: 4041456 (1977-08-01), Ott

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