Method and system for lossless and adaptive data compression and decompression
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United States of America Patent
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Nov 9, 1993
Grant Date -
N/A
app pub date -
Oct 11, 1991
filing date -
Oct 11, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and system for compression and decompression. The system compresses data by calculating the differences between adjacent data values, identifying a plurality of frequently occurring differences, tracking the frequency of occurrence of the identified differences, generating a first encoding for the identified differences wherein the length of the encoding is based on the frequency of occurrence, generating a second encoding for the differences other than the identified differences, and for each calculated difference, encoding the calculated difference is identified difference and encoding the calculated difference using the second encoding when the calculated difference is not an identified difference to effect the compression of the data.
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