BANKNOTE VALIDATOR
First Claim
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1. Apparatus for checking the validity of a banknote, said apparatus including:
- a light source for illuminating the banknote with a plurality of wavelengths of light;
an aperture through which the illuminating light passes to reach a portion of the banknote;
imaging means for detecting light reflected or transmitted by the banknote at least one wavelength;
said imaging means generating at least one image representing said portion from said reflected or, transmitted light;
characterised in that a note path is provided along which the banknote to be validated is passed to expose a plurality of portions of the banknote to the illuminating light via said aperture when each of said portions is presented to the aperture.
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Accused Products
Abstract
Apparatus for checking the validity of a banknote wherein a light source illuminates a banknote through a slit as it is transported along a note path, the emitted light being detected at different wavelengths to generate a plurality of images such that a three dimensional matrix can be created, for comparison against matrices of authentic banknotes.
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Citations
19 Claims
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1. Apparatus for checking the validity of a banknote, said apparatus including:
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a light source for illuminating the banknote with a plurality of wavelengths of light; an aperture through which the illuminating light passes to reach a portion of the banknote; imaging means for detecting light reflected or transmitted by the banknote at least one wavelength; said imaging means generating at least one image representing said portion from said reflected or, transmitted light; characterised in that a note path is provided along which the banknote to be validated is passed to expose a plurality of portions of the banknote to the illuminating light via said aperture when each of said portions is presented to the aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for checking the validity of a banknote, said method comprising the steps of:
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transporting a banknote along a note path; illuminating a portion of the banknote, via an aperture, with a plurality of wavelengths of light; detecting light reflected or transmitted by the banknote at least one wavelength; generating at least one image representing said portion from said reflected or transmitted light characterised in that the banknote is passed along a note path to expose a plurality of portions of the banknote to the illuminating light via said aperture. - View Dependent Claims (17, 18, 19)
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Specification