Memory card and reproducing apparatus
AssigneeSony Corporation
InventorToshifumi Nishiura
Life of this patent
Estimating the term…
Abstract
Data with high confidentiality is stored safely in a memory card while maintaining the function of a FAT file system that an existing memory card has. In a data area 30 of a semiconductor memory 42, the FAT file system management areas 33 to 36, a dedicated data area 31 that stores data of a dedicated file system different from the FAT file system and a dedicated file system management area 32 that indicates an access method to the dedicated data area 31 are provided; and the data reproduced based on information within the FAT file system management areas 33 to 36 is made to be the data different from the data reproduced from the dedicated data area 31 based on the information within the dedicated file system management area 32.
Claims6
A memory card comprising in a data area of a semiconductor memory:
- a FAT file system management area;
- a dedicated data area that stores data of a dedicated file system different from the FAT file system;
- and
- a dedicated file system management area that indicates an access method to said dedicated data area,
- wherein data reproduced based on information within said FAT file system management area is the data different from data reproduced from said dedicated data area based on information within said dedicated file system management area.
A reproducing apparatus which reproduces data from a memory card including in a data area of a semiconductor memory a FAT file system management area, a dedicated data area that stores data of a dedicated file system different from the FAT file system, and a dedicated file system management area that indicates an access method to said dedicated data area, in which data reproduced based on information within said FAT file system management area is the data different from data reproduced from said dedicated data area based on information within said dedicated file system management area, comprising:
- processing means that perform
- first processing of accessing said dedicated file system management area within said data area;
- and
- second processing of accessing said dedicated data area by means of the access method indicated by said dedicated file system management area to reproduce the data.
A reproducing apparatus which reproduces data from a memory card including in a data area of a semiconductor memory, a FAT file system management area, a dedicated data area that stores data of a dedicated file system different from the FAT file system, and a dedicated file system management area that indicates an access method to said dedicated data area, in which data reproduced based on information within said FAT file system management area is the data different from data reproduced from said dedicated data area based on information within said dedicated file system management area, comprising:
- a processing unit that performs
- first processing of accessing said dedicated file system management area within said data area;
- and
- second processing of accessing said dedicated data area by means of the access method indicated by said dedicated file system management area to reproduce the data.
Dependencies are inferred from the claim text.