发明名称 |
ENCODING DEVICE, DECODING DEVICE, AND METHOD THEREOF |
摘要 |
<P>PROBLEM TO BE SOLVED: To accurately specify a band having large errors from the whole band with small computational complexity. <P>SOLUTION: A first position specifying part 201 searches the band having the large errors in relatively wide band width and generates first position information indicating a specified band over the whole band of an input signal by using a first layer error conversion coefficient indicating the errors of a decoding signal to the input signal. A second position specifying part 202 searches a target frequency band having the large errors in relatively narrow band width in the band specified in the first position specifying part 201, and generates second position information indicating a specified target frequency band. An encoding part 203 generates encoding information by encoding a first layer decoding error conversion coefficient included in the target frequency band. The first position information, the second position information and the encoding information are transmitted to a communication partner. <P>COPYRIGHT: (C)2009,JPO&INPIT |
申请公布号 |
JP2009042733(A) |
申请公布日期 |
2009.02.26 |
申请号 |
JP20080044774 |
申请日期 |
2008.02.26 |
申请人 |
PANASONIC CORP |
发明人 |
OSHIKIRI MASAHIRO;YAMANASHI TOMOHITO;MORII TOSHIYUKI |
分类号 |
G10L19/005;G10L19/02;H03M7/30 |
主分类号 |
G10L19/005 |
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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