Authentication using physical characteristics of tokens
US7793837B1 · kind B1 · utility
29Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2009 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Mar 30, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53022
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A portable consumer device having a substrate layer, a protective layer and a brittle material layer having an intentionally created unique fissure patterns and systems and methods for making and using same are disclosed. The unique fissure pattern of the brittle material layer is detected and used to authenticate the portable consumer device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.