Counterfeit and tamper resistant labels with randomly occurring features
US7497379B2 · kind B2 · utility
55Cited by
24References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2004 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Oct 10, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/47
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are disclosed to enable utilization of randomly-occurring features of a label (whether embedded or naturally inherent) to provide counterfeit-resistant and/or tamper-resistant labels. More specifically, labels including randomly-occurring features are scanned to determine the labels' features. The information from the scan is utilized to provide identifying indicia which uniquely identifies each label and may be later verified against the label features that are present to determine whether the label is genuine. In a described implementation, the identifying indicia may be cryptographically signed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.