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US 8,770,625 B1Granted
Anti-counterfeiting articles
AssigneeHewlett-Packard Development Company, L.P.
InventorGiordano Bruno Beretta
Life of this patent
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Abstract
An object is protected against counterfeiting by an article including an HVS-perceivable target and HVS-perceivable texture surrounding the target. The texture produces a gentle HVS stimulus modulation. Color of the target has a higher saliency than that of the texture, whereby the texture provides camouflage for the target. Location of the target with respect to the texture is a function of a serial number or other information about the object.
Claims3
A method of designing an anti-counterfeiting article for an object comprising an identification code of the object, comprising:
- creating a pseudo-random pattern of a basic element, wherein different locations on the pseudo-random pattern correspond to different values;
- encoding the identification code of the object to determine a target location within the pseudo-random pattern having a value that corresponds to the encoded identification code;
- assigning a color to the element at the target location;
- and
- assigning colors to the remaining elements in the pseudo-random pattern, wherein the color of the element at the target location is distinguishable over the colors of the remaining elements in the pseudo-random pattern to produce a HVS stimulus modulation texture, the texture providing camouflage for the element at the target location.
2 more elements
Dependencies are inferred from the claim text.