Method and device for securing a document, method and device for control corresponding thereto and secure document
US11030282B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2016 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Feb 5, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/413
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The device (100) for protecting a document (125) comprises: —a means (120) for inputting a digital file representing an image of at least a part of the document, —a means (135) of extracting characteristic elements of the image and of positions of said characteristic elements on the document, —a means (140) of encoding characteristic elements of the image and data representative of position of said characteristic elements on the document, and to a matrix code and—a means (155) of printing the matrix code on or in said document. In embodiments, the device comprises: —a means (165) of determining a location of the document not bearing any information, and/or—a means (165) of determining the shape of the matrix code corresponding to the location of the document not bearing information, the printing means printing the matrix code at the determined location and according to the determined shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.