Patent ID: 8550358
Filing Date: 2013-10-08
Classification: B41M,B42D,G06K

Abstract:
1. A method for identifying counterfeit documents and articles applied to identification of a support, which comprises subjecting a medium, on or in which selectively pigmented particle deposits have been selectively arranged according to a pre-established distribution and concentration model forming physically inhomogeneous and relatively translucent structures when exposed to radiation in a portion of the electro magnetic spectrum designed ad hoc to produce specific paths for wave transmission in order to produce interference patterns and disturbances in the inner space defined by each deposit, to electromagnetic radiation supplied by one or more emitting sources whereby said radiation is passed through said structures wherein the pigmented particles, acting as optical filters modulate the original wavelengths received while reflecting part of the wave so as to generate interference patterns by emitting photons at new and different wavelengths, in this way integrating a complex undulatory system, wherein selected points are taken for measurement as well as the overall output signal format, and are compared to master patterns in a reference matrix for establishing identity against parameters of wavelength, amplitude and phase that have previously been defined for these chosen interference points, giving place to the corresponding output states: 1 or 0, according to match conditions which allows for the creation of a binary code, when taking into account more than one data structure so constructed and applied on the support embodiment or simply validating or rejecting one single structure for not complying with the validity conditions so that validation is effected only if parameters at said selected points throughout the bombarding process match parameters stored in the master patterns.