发明名称 |
CODING METHOD, DECODING METHOD, APPARATUSES THEREOF, PROGRAMS THEREOF, AND RECORDING MEDIUM |
摘要 |
A coding method with a small error is provided. In the coding method of the present invention, a normalization value obtained from an input signal is corrected for an error calculated from an input and output in vector quantization and is then quantized. The coding method includes a normalization stage of normalizing the input signal in accordance with the normalization value of the input signal, calculated in each frame; a dividing stage of dividing the normalized frame into divided input signal sequences in accordance with a predetermined rule; a vector quantization stage of applying vector quantization to the divided input signal sequences to generate a vector quantization index; and a normalization value correction stage of correcting the normalization value of the input signal for the error obtained from the input and output in the vector quantization stage.
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申请公布号 |
US2011044405(A1) |
申请公布日期 |
2011.02.24 |
申请号 |
US20090812549 |
申请日期 |
2009.01.23 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORP. |
发明人 |
SASAKI SHIGEAKI;MORI TAKESHI;OHMURO HITOSHI;HIWASAKI YUSUKE;KATAOKA AKITOSHI;TSUTSUMI KIMITAKA |
分类号 |
H04L25/49;G10L19/00 |
主分类号 |
H04L25/49 |
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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