Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Reexamination Certificate
2004-04-02
2009-11-03
Dorvil, Richemond (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
C704S200000, C704S200100, C704S201000, C704S501000, C704S503000
Reexamination Certificate
active
07613609
ABSTRACT:
To encode multi-channel digital data by adjusting the number of bits allocated to each channel to perform entropy coding of the multi-channel data, there is provided a multi-channel encoder including n encoders for audio data from n channels and an inter-channel bit allocator that allocates the number of bits usable for each channel on the basis of the provisional number of in-use bits from each of the encoders. Each of the encoders performs entropy coding on the basis of the provisional number of quantizing steps, outputs the provisional number of in-use bits resulting from summing of a code length of each unit of coding, and adjusts the number of in-use bits by updating the quantizing steps correspondingly to the number of bits supplied based on the provisional number of in-use bits. Also, the inter-channel bit allocator allocates the total number of usable bits as the number of bits determined correspondingly to a ratio of each provisional number of in-use bits with the sum of all the proportional numbers of in-use bits.
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Dorvil Richemond
Godbold Douglas C
Lerner David Littenberg Krumholz & Mentlik LLP
Sony Corporation
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