File management system for a partially rewritable storage medium where file management information is created in a rewritable zone based on medium management information in a read only zone
US5537636A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1995 |
| Grant date | Jul 16, 1996 |
| Priority date | — |
| Expiry date | Mar 27, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/211
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A file management system for a partially rewritable single storage medium increases a Rewritable Zone and an unrewritable Read Only Zone, where a desired number of files and pieces of medium management information, including management information for respective files, are written when the Read Only Zone is manufactured. The file management system comprises a reading device and a creating device. The reading device reads the medium management information written in the Read Only Zone upon commencing the use of the storage medium. The creating device creates, in the Rewritable Zone, file management information necessary for using the storage medium based on the medium management information read from the reading device, according to the usage status of the storage medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.