Semiconductor memory card access apparatus, a computer-readable recording medium, an initialization method, and a semiconductor memory card
US7734864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2008 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Aug 5, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/00086
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A predetermined number of erasable blocks positioned at a start of a volume area in a semiconductor memory card are provided so as to include volume management information. A user area following the volume management information includes a plurality of clusters. A data length NOM of an area from a master boot record & partition table sector to a partition boot sector is determined so that the plurality of clusters in the user area are not arranged so as to straddle erasable block boundaries. Since cluster boundaries and erasable block boundaries in the user area are aligned, there is no need to perform wasteful processing in which two erasable blocks are erased to rewrite one cluster.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.