| 20100235359 | FILE RETRIEVAL METHOD AND DEVICE AND TIME STREAM FILE PROCESSOR - A file retrieval method of a file allocation table (FAT) system is provided, which includes steps of: A: acquiring cluster numbers of all clusters of a file; B: sorting the cluster numbers to create a cluster number index table; and C: looking up the cluster number index table to obtain a cluster number of a file cluster to be retrieved, and acquiring a content of the file cluster to be retrieved from a physical storage address corresponding to the cluster number. A file retrieval device is further provided, which includes a central processing unit (CPU) and an address index storage unit. The address index storage unit stores a cluster number index table of sorted cluster numbers of all clusters of a file. The CPU is adapted to obtain a cluster number of a file cluster to be retrieved according to the cluster number index table during retrieving and acquire a content of the file cluster to be retrieved from a physical storage address corresponding to the cluster number. A time stream file processor is further provided. Therefore, a file retrieving speed is enhanced. | 09-16-2010 |
