Portable authentication device and method of authenticating products or product packaging
US7079230B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2000 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Apr 24, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/14
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A portable authentication device and method of authenticating products or packaging by analyzing key ingredients on products or on product packaging is disclosed. Light-sensitive compounds can be used to identify the product or product packaging. The product or product package may include visible or invisible ink containing a particular light-sensitive compound. The ink may be printed in one or more locations on the product or product packaging to produce an authentication mark, such as a bar code. The device includes an assembly for providing a source of light to irradiate the ink containing the light-sensitive compound on the sample product or product package, an optical detector to detect certain spectral properties emitted or absorbed by the irradiated ink and a controller to determine the authenticity of the sample product or product package by comparing the emitted or absorbed properties to a standard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.