Optical storage medium, method for preparing optical storage medium, and system
US12062387B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | May 15, 2023 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | May 15, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2541
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical storage medium, a method for preparing an optical storage medium, and a system are provided. In this application, the optical storage medium includes a substrate and at least one data layer, the data layer includes a recording layer and a spacer layer, the recording layer is located on the spacer layer, and the data layer is located above the substrate. The recording layer may store data, the recording layer includes an area in which a phase change material is distributed and an area in which no phase change material is distributed, and the two different areas may indicate different data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.