Converting file-systems that organize and store data for computing systems
US7836105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2005 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Aug 1, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/116
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for converting file-systems used for organizing and storing data on computer readable mediums are disclosed. A first file-system is converted to a second file-system while file(s) stored on the computer readable medium remain(s) virtually undisturbed in the same location. A FAT file-system (e.g., FAT32) is converted to an HFS file-system (e.g., HFS Plus) by generating HFS data structures (Catalog, Allocation File and Extents) for file(s) already stored in the HFS file-system. The number and location of the file(s) can be determined primarily based on the FAT file-system's data structures (FAT and Directory). The conversion process can be stopped before the FAT file-system indicators (partition map and boot sector) are overwritten. After the HFS data structured have been generated and successfully verified for the file(s) already stored on the computer readable medium, the HFS file-system can effectively replace the FAT file-system by modifying the partition map and writing a volume header that may overwrite that boot sector. Similarly, A HFS file-system can be converted to a FAT. In general, any file-system used to organize and store files can be converted based on the l…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.