发明名称 |
Compression coding and decoding method, coder, decoder, and coding device |
摘要 |
The embodiments of the present invention relate to a compression coding and decoding method, a coder, a decoder and a coding device. The compression coding method includes: extracting sign information of an input signal to obtain an absolute value signal of the input signal; obtaining a residual signal of the absolute value signal by using a prediction coefficient, where the prediction coefficient is obtained by prediction and analysis that are performed according to a signal characteristic of the absolute value signal of the input signal; and multiplexing the residual signal, the sign information and a coding parameter to output a coding code stream, after the residual signal, the sign information and the coding parameter are respectively coded, so as to improve compression efficiency of a voice and audio signal.
|
申请公布号 |
US8489405(B2) |
申请公布日期 |
2013.07.16 |
申请号 |
US201113309373 |
申请日期 |
2011.12.01 |
申请人 |
QI FENGYAN;MIAO LEI;ZHANG QING;HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
QI FENGYAN;MIAO LEI;ZHANG QING |
分类号 |
G10L19/00;G10L19/04;G10L19/08;G10L19/09;G10L19/12 |
主分类号 |
G10L19/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|