Method for making an object secure, and corresponding object
US10290167B2 · kind B2 · utility
1Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2010 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jan 16, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F7/125
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for making an object secure comprises creating a multi-layer graphic signature by superposing, in partial or total transparency, a first random graphic element on a first layer to a second graphic element on a second layer, and storing the graphic signature on or in the object. The method is essentially characterized in that the relative position of the first graphic element and of the second graphic element is random.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.