Authenticatable mark, systems for preparing and authenticating the mark
US8330122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2007 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Nov 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/2083
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems for preparation of a mark and authentication of a mark vis-a-vis a counterfeit mark. Emission spectra comprising intensity versus wavelength distributions are collected from a series of taggants. One or more taggants is selected from the collected emission data such that the spectra of the selected taggants are distinguishable. The selection is also based on a consideration of the emitted radiation of a substrate and a dispersive medium. The authentication system uses multivariate statistical analysis to calculate at least one measurement statistic of a mark to be authenticated and at least one statistical limit based on a series of training marks prepared by the preparation system. Authenticity of the mark is determined based on a comparison of the measurement statistic and the statistical limit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.