Media disc reliability
US7801001B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2007 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Jan 26, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1823
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Damage to removable or non-removable media or to content on the media may prevent access to content on the media. A processor may recognize a defect in the media, for example, due to read errors. The processor may request a “clean” (i.e., undamaged) or replaceable version of the non-readable media content. The processor may request the content over a network. The processor may store the requested content in local storage, such as in the cache or more permanent memory. The processor may read the requested portion directly over the network or from the stored location, rather than reading the damaged portion from the removable media. Once stored locally, the clean version may be available for subsequent access. Subsequently, the processor may request previously stored content from local storage without needing to request content over the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.