Method for authenticating a secure document
US11749048B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 2019 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Jul 20, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/206
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The invention relates to a method for authenticating a secure document comprising data printed by analogue or digital printing, said method comprising the following operations: —definition, from among a set of graphical and/or alphanumeric data of the secure document, of at least one distinct data area including at least one distinctive pattern; —during an operation of fabrication of the secure document, reading the distinct data area onto a storage device so as to form a distinct reference data area; —in the course of an operation of verification of the authenticity of the secure document, extracting the distinct data area from a digitized version of the secure document; and—comparing the extracted distinct data area with the distinct reference data area so as to determine a level of matching between said distinct data areas and to deduce therefrom a positive authentication or negative authentication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.