Phase-modulated optical data storage
US12165682B2 · kind B2 · utility
0Cited by
11References
20Claims
0Family size
Assignee
Inventors
- Thomas Torsten Dr Winkler
- Rokas Drevinskas
- Ariel GOMEZ DIAZ
- Charles Ernest WHITTAKER
- Timothy John Deegan
- James Hilton Clegg
- Daniel Jonathan Finchley Cletheroe
- Hugh WILLIAMS
- Austin Donnelly
- Richard John Black
- Masaaki SAKAKURA
- Teodora Ilieva
- Bridgette Rosanna Doris Cooper
- Ioan Alexandru Stefanovici
- Erika Blancada Aranas
- Pablo Rafael Andreas Wilke Berenguer
Key dates
| Filing date | Mar 31, 2023 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Mar 31, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/25301
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of writing data to a transparent substrate comprises forming a first voxel by focusing a first laser pulse on a first location in a transparent substrate; and forming a second voxel by focusing a second laser pulse on a second location in the transparent substrate. The first laser pulse and the second laser pulse have different amplitudes, resulting in the first and second voxels having different strengths. Also provided are a system useful for implementing the method; an optical data storage medium obtainable by the method; and a method of reading data from the optical data storage medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.