Manufacturing of a security document
US10471759B2 · kind B2 · utility
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2References
15Claims
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Key dates
| Filing date | May 9, 2017 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Jun 10, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/444
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for manufacturing a security document including a security pattern generation method includes the steps of selecting a bounding region, an image object, and a raster image or a function; cutting the image object into image object partitions; and repeating the image object as a pattern, preferably a lattice pattern, in the bounding region wherein each of the image object partitions of an image object is transformed depending on the position area of the image object in the lattice pattern and the rank of the image object partition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.