发明名称 |
Encoding device, decoding device, and system thereof utilizing band expansion information |
摘要 |
A decoding device (30a) comprises a narrow-band decoding unit (31) operable to reproduce a PCM signal (P1) from a narrow-band bit stream included in a wide-band bit stream (S0), a wide-band decoding unit (32) operable to reproduce a PCM signal (P2) having a frequency band which is wider than that of the PCM signal (P1) reproduced by the narrow-band decoding unit (31) from the narrow-band bit stream and a band expanding bit stream included in the wide band bit stream (S0) and a selecting unit (34) operable to select either the PCM signal (P1) reproduced by the narrow-band decoding unit (31) or the PCM signal (P2) reproduced by the wide-band decoding unit (32), and to output the selected sound digital signal.
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申请公布号 |
US8311841(B2) |
申请公布日期 |
2012.11.13 |
申请号 |
US20070806971 |
申请日期 |
2007.06.05 |
申请人 |
MIYASAKA SHUJI;ISHIKAWA TOMOKAZU;SAWADA YOSHIAKI;PANASONIC CORPORATION |
发明人 |
MIYASAKA SHUJI;ISHIKAWA TOMOKAZU;SAWADA YOSHIAKI |
分类号 |
G10L19/00;G10L19/14;G10L19/18;G10L19/24;G10L21/04 |
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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