发明名称 |
ENCODING METHOD, DECODING METHOD, ENCODER, DECODER, PROGRAM AND RECORDING MEDIUM |
摘要 |
In encoding, the number of bits to be assigned to codes corresponding to noise or a pulse sequence obtained according to prediction analysis applied to time series signals included in a predetermined time interval is switched according to whether an index that indicates a level of periodicity and/or stationarity of input time series signals satisfies a condition that indicates high periodicity and/or high stationarity or a condition that indicates low periodicity and/or low stationarity, to acquire the codes corresponding to the noise and the pulse sequence. In decoding, a decoding mode for codes corresponding to noise or a pulse sequence included in codes corresponding to a predetermined time interval is switched according to the same criterion as that described above to decode the codes corresponding to the noise or the pulse sequence to acquire noise or a pulse sequence corresponding to the predetermined time interval. |
申请公布号 |
EP2660811(B1) |
申请公布日期 |
2017.03.29 |
申请号 |
EP20120747075 |
申请日期 |
2012.02.08 |
申请人 |
Nippon Telegraph And Telephone Corporation |
发明人 |
MORIYA, Takehiro;HARADA, Noboru;KAMAMOTO, Yutaka;HIWASAKI, Yusuke;FUKUI, Masahiro |
分类号 |
H03M5/06;G10L19/12;G10L19/18 |
主分类号 |
H03M5/06 |
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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