Coded data generation or conversion – Digital code to digital code converters – To or from code based on probability
Reexamination Certificate
2011-07-12
2011-07-12
Nguyen, Linh V (Department: 2819)
Coded data generation or conversion
Digital code to digital code converters
To or from code based on probability
C341S051000, C341S065000, C341S067000, C341S106000, C375S240120, C375S240130, C375S240160, C375S240220, C375S282000, C382S182000, C382S232000, C382S243000, C382S248000
Reexamination Certificate
active
07978103
ABSTRACT:
To provide a code amount estimating device which can perform, at high speed and with high precision, estimation of code amount obtained after arithmetic coding. The code amount estimating device includes a context index calculation unit which calculates a context index of a binary symbol included in binary data, and an estimate code amount calculation unit which calculates an estimate code amount for the binary data based on symbol occurrence probability information stored in association with the calculated context index and on a held probability interval range. The estimate code amount calculation unit estimates the code amount for the binary data according to code amount information indicating an association between (i) a combination of a binary symbol string including one or more binary symbols, symbol occurrence probability information, and a probability interval range and (ii) an estimate code amount for the binary symbol string.
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Chiba Takuma
Juri Tatsuro
Seki Yukinaga
Tsuda Kenjiro
Nguyen Linh V
Panasonic Corporation
Wenderoth Lind & Ponack, LLP.
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