Write once read forever archival data storage
US9330706B1 · kind B1 · utility
2Cited by
7References
4Claims
0Family size
Inventors
Key dates
| Filing date | Sep 30, 2014 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Sep 30, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/218
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention teaches a methodology and an optical apparatus that provides long-term, archival storage using a chemically stable, high-resolution, photosensitive emulsion, such as silver halide, for the long-term, archival storage and retrieval of data, images and text. Multiple state data substantially increasing data density is stored as vertical diffraction gratings in the archival photosensitive emulsion. The data can be read out in parallel, substantially increasing retrieval speeds beyond that of current optical and magnetic techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.