System for and method of accessing blocks on a storage medium
US7096327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2001 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Mar 28, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/102
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system (100, 300) like a video on demand server has a storage medium (106) with a number of files (200) from which data can be fetched or in which data can be stored. A file contains a number of clusters (202, 204, 206) and each cluster contains a number of storage sectors (208) that are physically successively organized on the storage medium. When a new stream is requested, either for reading or writing, a block size (210) is determined for the new stream. The block size is large enough to support the rate of the stream and is chosen such that a cluster can be read with an integer number of blocks by evenly partitioning the size of the cluster into the size of the blocks reading the cluster.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.