High speed lossless data compression method and apparatus using side-by-side sliding window dictionary and byte-matching adaptive dictionary
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United States of America Patent
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Dec 5, 1995
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N/A
app pub date -
Nov 5, 1992
filing date -
Dec 14, 1990
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Abstract
A data compression and decompression method and apparatus utilizing a sliding window dictionary in combination with an adaptive dictionary. Incoming data moves through a buffer and is compared against both the sliding window dictionary and the adaptive dictionary, and matched data is replaced with a pointer to the dictionary entry. All incoming data is entered into the sliding window dictionary, but only data which satisfies certain criteria is entered into the adaptive dictionary.
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