Back to results
US 8,300,916 B2Granted
Banknote validator
AssigneeInnovative Technology Limited
InventorMatthew Strong
Life of this patent
Estimating the term…
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.
Claims15
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;
- and wherein the imaging means generate an image for each of the portions and processing means are provided to combine the images to create a representation of the banknote, and the representation is a three dimensional matrix in which the coordinates of the matrix relate to a longitudinal coordinate of the banknote, the wavelength range, and the intensity of the light detected.
3 more elements
A method for checking the validity of a banknote, said method comprising the steps of:
- 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;
- and wherein an image is generated for each of the portions, and the images are combined to create a representation of the banknote, and the representation is a three dimensional matrix in which two coordinates of the matrix relate to x and y coordinates of the banknote respectively and the third coordinate of the matrix relates to the intensity of a particular wavelength.
3 more elements
Dependencies are inferred from the claim text.