Variable to variable length entropy encoding
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United States of America Patent
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Apr 23, 2002
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N/A
app pub date -
Dec 14, 1998
filing date -
Dec 14, 1998
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Abstract
Entropy encoding and decoding of data with a code book containing variable length entropy-type codes that are assigned to variable length input symbol groupings. The variable length input sequences are identified by scanning an input channel, such as a live broadcast, non-volatile data storage, or network connection (e.g., LAN, WAN, Internet). Each time a symbol grouping is recognized, a corresponding entropy-type code is output as a replacement for the input stream. Decoding is the inverse process of encoding, where a code word is looked up in the code book and the corresponding original input is obtained.
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