Currency paper verification and denomination device

Details Currency paper verification and denomination device Currency paper verification and denomination device

1993-09-03

1995-05-16

Pitts, Harold

Registers

Coded record sensors

Particular sensor structure

235375, 235454, G06K 708

Patent

active

054163072

ABSTRACT:
A linear array of photo-emitters and photodetectors is positioned on one side of currency paper subjected to verification for authenticity under transmitted and reflected light. The focus of the photo emitters is adjusted for the top surface, center and bottom surface of the currency paper. A logic circuit-determines the presence or absence of the security feature and correspondingly provides visual or audible indication thereof. A memory device contains stored information identifying currency denomination and a comparison is made at the time of verification to also determine the denomination of the proffered currency. The photo emitters, photo-detectors and related circuitry are arranged within an enclosure that is located next to a currency-receiving device such as a cash register. Visual or audible indicators are mounted on the device for immediate indication of the currency verification to the cashier along with the currency denomination. The arrangement of the photo emitters and photo-detectors transverse to the major length of the currency paper detects the security feature while confirming that the security feature is within the currency paper and not on either surface.

REFERENCES:
patent: 3544771 (1970-12-01), O'Meara
patent: 3980990 (1976-09-01), Berube
patent: 4524276 (1985-06-01), Ohtombe
patent: 4652015 (1987-03-01), Crane
patent: 4761205 (1988-08-01), Crane
patent: 4814589 (1989-03-01), Storch
patent: 4980569 (1990-12-01), Crane et al.
patent: 5023434 (1991-06-01), Lanfer
patent: 5151607 (1992-09-01), Crane et al.
patent: 5210398 (1993-05-01), Metlisky

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