| 摘要 |
An improved compression and decompression technique to maximize the utilization of low capacity data storage while minimizing the decompression time. In one embodiment, software files comprising a file header and a plurality of records are compressed to generate a compressed file header and a single record that contains a compressed image of the original plurality of records. Upon execution, the record is decompressed and portions of the compressed images corresponding to destination addresses are decompressed to allow a decompressor to directly place the decompressed records in the desired destination. In another embodiment of the invention, software files comprising a file header and a plurality of records are individually compressed to generate a compressed file header and a plurality of compressed records. Upon execution, the file header and portions of the individual records corresponding to destination address are decompressed to allow a decompressor to directly place the individual records into the desired destination. The various embodiments of the present invention can be used to compress and decompress software images stored in low-capacity nonvolatile storage devices including, but not limited to compact flash memory cards and low-capacity hard drives. Since the individual records are directly decompressed to the desired memory locations, execution time is decreased thereby providing improved performance. |
