Apparatus and method for entropy coding
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United States of America Patent
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Oct 2, 2001
Grant Date -
N/A
app pub date -
Jul 9, 1998
filing date -
Jul 9, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A quantified symbol stream is sampled, using the quantified symbols prior to the current symbol, to generate a modeling value that characterizes the stream. The modeling value is used to generate, or retrieve, a probability function that provides the probability that the current symbol will be the next symbol in the symbol stream. The probability given by the probability function is then used to select the used to represent the data. The encoded symbol is later decoded using the characteristics of the code, and an identical probability function, to determine the value of the original quantified symbol.
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