Abstract:
Systems and methods for authenticating a document are provided. In one embodiment, a method for authenticating a feature of a document includes capturing a first image of a region of a document while the region is subjected to a first wavelength of electromagnetic radiation. The region includes at least a portion of the document. The method also includes determining a first intensity value associated with the first image of the region, and comparing the first intensity value with a first training intensity value of a region of a training document. The first training intensity value is obtained using the first wavelength of electromagnetic radiation. The method also includes determining whether the document is authentic at least partially based on the comparison between the first intensity value and the first training intensity value.
Abstract:
Described is a marking for a substrate. The marking comprises at least one luminescent substance (a) and at least one chiral liquid crystal polymer (CLCP) material (b) having a reflection wavelength range that overlaps at least a part of the luminescence wavelength range of (a), provided that at least a part of (b) is not located underneath (a).
Abstract:
Authenticating a mark comprising a marker that emits light under illumination, involving an obtaining of a light spectrum from the mark, the light spectrum comprising values, each value indicating a light intensity of the light emitted from the mark for a corresponding wavelength, an applying of a set of rules onto the values of the light spectrum to obtain a first result indicating whether the mark is authentic or not, an applying of statistical processing onto the values of the light spectrum to obtain a second result indicating whether the mark is authentic or not, and a generating of an output result indicating whether the mark is authentic or not from the first result and the second result.
Abstract:
A system and method for authentication includes a photoluminescent label including a photoluminescent material having a decay time, the photoluminescent material being configured to absorb an incident radiation from a radiation source and to emit an emitted radiation having a spectral signature after removal of the radiation source, and a sensor configured to measure the spectral signature in the emitted radiation during the decay time.
Abstract:
Die vorliegende Erfindung betrifft eine Sicherheitsvorrichtung und ein Authentifizierungsverfahren, bei dem ein Sicherheitselement (1) vorgesehen ist, welches ein Trägermaterial (6) umfasst, in dem ein dreidimensionales Muster mit Strukturen (4) wie Rissen, Rillen, Abplatzungen, Vertiefungen, Schuppen, Erhebungen und/oder Schrumpfungen als statisches oder dynamisches Sicherheitsmerkmal eingebettet sind, wobei zusätzlich ein über die Abtasteinrichtung detektierbarer Stoff oder eine Stoffzusammensetzung zumindest teilweise in oder auf dem im Trägermaterial (6) eingebetteten dreidimensionalen Muster ab- oder eingelagert und bedarfsweise auf dem Sicherheitselement neu aufbringbar oder entfernbar ist, wodurch sich die Farbe, die Intensität, die Struktur, die Schichtdicke, einzelne Pigmente oder eine andere physikalische Eigenschaft des Trägermaterials (6) und/oder des darin eingebetteten dreidimensionalen Musters des Sicherheitselementes (1) verändert, so dass ein zumindest teilweise verändertes Erscheinungsbild entsteht, welches zu einem Authentifizierungszeitpunkt von der Abtasteinrichtung erfassbar und in dem Speichermittel hinterlegbar ist.
Abstract:
The present invention relates to the technical field of devices for reading/authenticating banknotes. The invention also concerns handheld devices, particularly those which may be used by visually impaired persons, to identify different banknote denominations. The present invention is aimed at providing a banknote validator that avoids the drawbacks of the prior art. The validator according to the invention may as well be used for validating a security document including a marking (like luminescent ink or pattern printed on said document, luminescent security thread or strip, for example) operable to glow with a specific color luminescence under appropriate UV light illumination. The invention further describes a method for identifying a denomination of a banknote having a test zone including a marking operable to glow with a specific color luminescence according to the denomination under appropriate UV light illumination.
Abstract:
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Prüfung von Wertdokumenten mit lumineszierenden Merkmalsstoffen. Indem die Auswertung der erfassten Lumineszenzstrahlung auf der Grundlage einer integrierten Lumineszenzmessung durchgeführt wird, welche durch eine Integration der gemessenen Lumineszenzstrahlung einer sich über die quer über das Wertdokument erstreckende Spur gewonnen wird, ist eine besonders leichte Erfassung und Unterscheidung auch von schwach leuchtenden Merkmalsstoffen ermöglicht.
Abstract:
The present invention discloses substituted heterocyclic compounds and /or aromatic compounds containing amide and/or urea groups exhibiting resonance in the range of 0.1- 10 THz. The invention also discloses binary molecular complexes based on the substituted heterocyclic compounds and/or aromatic compounds containing amide and/or urea groups of the present invention. The compounds and binary molecular complexes of the present invention have varying molecular mass and hydrogen bond strengths demonstrating several resonances below 10 THz. The compounds and binary molecular complexes of the present invention are customizable for various applications, such as authentication of a product.
Abstract:
Embodiments include articles, authentication methods and apparatus, and article manufacturing methods. An article includes a substrate with a first luminescent taggant, and an extrinsic feature with a second luminescent taggant, which is positioned proximate a portion of the article surface. The first and second taggants produce emissions in overlapping emission bands as a result of exposure to excitation energy. Above the extrinsic feature, the substrate and extrinsic feature emissions combine in the overlapping emission band to produce "confounded" emissions that are distinguishable from the substrate emissions taken alone. An authentication system determines whether, in a region corresponding to a "substrate-only" region of an authentic article, emissions having first emission characteristics are detected in the overlapping emission band. The system also determines whether, in a region corresponding to an "extrinsic feature" region of an authentic article, the confounded emissions are detected in the overlapping emission band.