Data compression system

Details Data compression system Data compression system

H - Electricity

03

M

H03M 7/30 (2006.01) G06F 13/38 (2006.01) G06T 9/00 (2006.01) H03M 7/42 (2006.01) H03M 7/46 (2006.01)

Patent

CA 2154978

A real-time method for improving data compression. The correlation between data characters being provided a modem (10) is determined. Two measures are used to determine the correlation between data characters: the shape of tree(s) (6) in encoding table (16) and the compression ratio (96). Once the correlation between data characters is determined using the two measures, the size of the encoding table (16) can be changed. If the data characters are not correlated, meaning the data is random or pseudo-random, the size of the encoding table is decreased. If the data characters are highly correlated, changing the size of the encoding table reduces time spent attempting to compress incompressible data and increases data compression for compressible data.

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