G - Physics – 06 – K
Patent
G - Physics
06
K
G06K 19/06 (2006.01)
Patent
CA 2530485
Methods of coding and retrieving information by using the unique emission properties of the semiconductor nanocrystals (quantum dots) for the identification of valuable documents, articles and objects are described. A carrier medium is prepared containing quantum dots selected to give the carrier medium defined fluorescent emission characteristics encoding predetermined information. The carrier medium is then applied to the object, preferably in the form of an ink.
L'invention a trait à des procédés permettant de coder et de récupérer des informations à l'aide des propriétés d'émission uniques des nanocristaux semi-conducteurs (points quantiques) pour l'identification de documents, articles et objets de valeur. L'on produit un support qui contient des points quantiques sélectionnés de manière à conférer au support des caractéristiques d'émission fluorescente définies codant des informations prédéterminées. Le support est ensuite appliqué à l'objet, de préférence sous forme d'encre.
Chang Shoude
Grover Chander P.
Zhou Ming
Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Research Council Of C
Marks & Clerk
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