Workpiece authentication based upon one or more workpiece images
US7035428B1 · kind B1 · utility
15Cited by
35References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2000 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Apr 19, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/768
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A workpiece authentication technique is provided. The technique bases workpiece authentication upon intrinsic physical characteristics of the workpiece, including one or more images of topographical appearance of at least one portion of the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.