发明名称 |
Encoding apparatus and encoding method |
摘要 |
An encoding device and an encoding method are provided for encoding by reducing the number of samples to be processed when encoding higher-band spectrum data according to lower-band spectrum data in a wide-band signal. The device and the method can obtain a high-quality decoded signal even if a large quantization distortion is caused in the lower-band spectrum data. When encoding higher-band spectrum data in a signal to be encoded, according to lower-band spectrum data in the signal, only for a part (a head portion) of the higher-band spectrum data, the lower-band spectrum data after being quantized is subjected to approximate partial search and higher-band spectrum data is generated according to the search result.
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申请公布号 |
US8121850(B2) |
申请公布日期 |
2012.02.21 |
申请号 |
US20070299976 |
申请日期 |
2007.05.09 |
申请人 |
YAMANASHI TOMOFUMI;SATO KAORU;MORII TOSHIYUKI;PANASONIC CORPORATION |
发明人 |
YAMANASHI TOMOFUMI;SATO KAORU;MORII TOSHIYUKI |
分类号 |
G10L19/00;G10L19/02;G10L21/02;G10L21/038 |
主分类号 |
G10L19/00 |
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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