Data processing apparatus

Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission

Reexamination Certificate

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Details

C704S219000, C704S262000, C704S220000, C700S094000, C375S316000

Reexamination Certificate

active

07467083

ABSTRACT:
The present invention relates to a data processing apparatus capable of obtaining high-quality sound data. A tap generation section121generates a prediction tap used for a process in a prediction section125by extracting decoded speech data in a predetermined positional relationship with subject data of interest within the decoded speech data such that coded data is decoded by a CELP method and by extracting an I code located in a subframe according to a position of the subject data in the subject subframe. Similarly to the tap generation section122, a tap generation section122generates a class tap used for a process in a classification section123. The classification section123performs classification on the basis of the class tap, and a coefficient memory124outputs a tap coefficient corresponding to the classification result. The prediction section125performs a linear prediction computation by using the prediction tap and the tap coefficient and outputs high-quality decoded speech data. The present invention can be applied to mobile phones for transmitting and receiving speech.

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