High speed lossless data compression method and apparatus using

Details High speed lossless data compression method and apparatus using High speed lossless data compression method and apparatus using

1992-11-05

1995-12-05

Hoff, Marc S.

Coded data generation or conversion

Digital code to digital code converters

Adaptive coding

341106, H03M 730

Patent

active

054733260

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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patent: 4843389 (1989-06-01), Lisle et al.
patent: 4881075 (1989-11-01), Weng
patent: 5006849 (1991-04-01), Baarman et al.
patent: 5008668 (1991-04-01), Takayama et al.
patent: 5138316 (1992-08-01), Konishi
patent: 5243341 (1993-09-01), Seroussi et al.

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