File retrieval system and electronic device using the same
AssigneeHon Hai Precision Industry Co., Ltd.
InventorYI-TA CHIANG-LIN
Life of this patent
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Abstract
A file retrieval system for a memory device includes a reserved area and a plurality of clusters. A file is divided into a number of sections scattered on the clusters. The file retrieval system includes a write unit, a record unit, and a restoration unit. The write unit writes sections to the clusters. The record unit is for recording section allocation information of the sections to the reserved area, simultaneously during writing of the sections of the file to the clusters. The restoration unit restores data stored in the clusters, according to the section allocation information in the reserved area.
Claims15
A file retrieval system applied on a memory device, the memory device comprising a reserved area and a plurality of clusters which a file saved in the memory device is divided into a plurality of sections scattered on the clusters, a file allocation table (FAT) comprising a vector table of the physical locations of the sections of the file stored in the clusters, the file retrieval system comprising:
- a write unit configured for writing the sections of the file to the clusters of the memory device;
- a record unit configured for recording section allocation information of the sections to the reserved area simultaneously with the writing of the sections to the file;
- and
- a restoration unit configured for restoring the data stored in the clusters, according to the section allocation information in the reserved area.
An electronic device, comprising:
- a memory device comprising:
- a plurality of clusters configured for storing a plurality of sections of a file;
- a reserved area;
- and
- an file retrieval system comprising:
- a write unit configured for writing the sections of the file to the clusters of the memory device;
- a record unit configured for recording section allocation information of the sections to the reserved area simultaneously during writing of the sections of the file;
- and
- a restoration unit configured for restoring the stored in the cluster, according the section allocation information in the reserved area.
Dependencies are inferred from the claim text.