Method of strong images and corresponding storage medium
US8310512B2 · kind B2 · utility
1Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2009 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Dec 4, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method of storing images on a medium able to be etched on the basis of a writing procedure using a laser beam, in which a substrate, preferably flexible, comprises a multiplicity of expanses of lateral dimensions less than 10 millimeters, each reserved for an image, and an expanse reserved for an image comprises as many elementary zones as there are image pixels to be stored, the image stored in an expanse being able to be read by optical magnification means. Each elementary zone comprises an engraved pattern whose diameter represents one respective grey level out of n possible levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.