Patent ID: 7893832
Filing Date: 2011-02-22
Classification: G06K

Abstract:
1. An authenticity tag comprising: a carrier for attachment to an object; wherein the carrier comprises a plurality of electrically conductive areas, and a plurality of adhesive areas arranged in electrical contact with respective electrically conductive areas, the plurality of adhesive areas comprising a conductive adhesive material, wherein the plurality of electrically conductive areas and the plurality of adhesive areas are formed such that a unique electrically detectable pattern between two respective ones of the plurality of electrically conductive areas via an adhesive area of the plurality of adhesive areas is formed when the authenticity tag is attached to the object, by wrapping around the object such that the two ends of the carrier comprising the conductive areas and the conductive adhesive areas join together at a plurality of possible attachment longitudinal overlaps, transverse overlaps and angles corresponding to a unique combination of joined conductive areas and conductive adhesive areas; and a controller attached to the carrier, comprising: a detector configured to detect an electrically detectable quantity at the electrically conductive areas; a memory configured to store a comparative quantity representing the unique electrically detectable pattern occurring when the authenticity tag is attached to the object; and a communicator configured to communicate the comparative quantity and the electrically detectable quantity detected or a result of a comparison between the electrically detectable quantity detected and the comparative quantity.