发明名称 |
DATA PROCESSING APPARATUS |
摘要 |
<p>The present invention relates to a data processing apparatus capable of obtaining high-quality sound data. A tap generation section 121 generates a prediction tap used for a process in a prediction section 125 by 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 section 122, a tap generation section 122 generates a class tap used for a process in a classification section 123. The classification section 123 performs classification on the basis of the class tap, and a coefficient memory 124 outputs a tap coefficient corresponding to the classification result. The prediction section 125 performs 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. <IMAGE></p> |
申请公布号 |
EP1282114(A1) |
申请公布日期 |
2003.02.05 |
申请号 |
EP20020710340 |
申请日期 |
2002.01.24 |
申请人 |
SONY CORPORATION |
发明人 |
KONDO, TETSUJIRO;WATANABE, TSUTOMU;KIMURA, HIROTO |
分类号 |
G10L19/12;H03M7/30;H03M7/36;(IPC1-7):G10L19/12;G10L19/04 |
主分类号 |
G10L19/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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