| 摘要 |
<p>Systems for providing content independent lossless data compression and decompression. Data block are stored in an input buffer (20) and is compressed by a plurality of encoders (30) configured to simultaneously or sequentially compress input. Ecah data block output from the encoders (30) is buffered (40) and counted. A processing unit (50) computes the compression ratio obtained by each of the encoders (30) and compares the compression ratios with a threshold or with a figure of merit, weighted from encoder desirability factor level. Encoded data block having highest compression ratio and meeting threshold level is selected. A processing unit (60) appends a compression description, to enable subsequent decompression and interpretation. If any compression ratios does not meet the threshold level, processing unit (50) will select buffered input block (20) for output and processing unit (60) will append a null descriptor. A timer (90) may be included to measure encoding time against a predefined time limit.</p> |
