发明名称 |
SIGNAL ENCODING APPARATUS AND METHOD, SIGNAL DECODING APPARATUS AND METHOD, PROGRAMS AND RECORDING MEDIUMS |
摘要 |
An encoding apparatus that divides an input time series signal into a plurality of sub-bands and encodes a low frequency sub-band signal to generate encoded data of the low frequency sub-band signal. Concurrently, it compares the frequency amplitude peak of the new high frequency sub-band signal generated from the low frequency sub-band signal and the original high frequency sub-band signal and generates frequency amplitude peak information of the high frequency sub-band signal. It compares the gain of the new high frequency sub-band signal generated by using the low frequency sub-band signal and the original high frequency sub-band signal and generates gain information of the high frequency sub-band signal. Subsequently, the signal encoding apparatus multiplexes the encoded data of the low frequency sub-band signal, the frequency amplitude peak information of the high frequency sub-band signal and the gain information of the high frequency sub-band signal and outputs compressed data. |
申请公布号 |
US2012158411(A1) |
申请公布日期 |
2012.06.21 |
申请号 |
US201213399103 |
申请日期 |
2012.02.17 |
申请人 |
CHINEN TORU;HONMA HIROYUKI;SONY CORPORATION |
发明人 |
CHINEN TORU;HONMA HIROYUKI |
分类号 |
G10L21/00 |
主分类号 |
G10L21/00 |
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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