Method of and apparatus for tracking appended data on storage medium
US6526482B1 · kind B1 · utility
13Cited by
6References
8Claims
0Family size
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Key dates
| Filing date | Mar 6, 2001 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Mar 6, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/00813
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a data storage system in which a sequence of data blocks is written onto a medium, appended data is distinguished by including in the first and subsequent appended data blocks an append point code uniquely identifying the location of the first appended data block. Where the data blocks have a running block number or frame number, the block or frame number of the first appended data block is stored as the append point code. This clearly identifies the most recent append point location which will aid in processes such as tracking calibration data integrity confirmation and track positioning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.