发明名称 |
MULTI-PATH TRELLIS CODED QUANTIZATION METHOD AND MULTI-PATH CODED QUANTIZER USING THE SAME |
摘要 |
A method of multi-path trellis coded quantization (TCQ) usable in a speech coding system, and a quantizer using the method. Specifically the method includes calculating accumulated distortions corresponding to 2N survivor paths, wherein N indicates an integer greater than two, each of the 2N survivor paths is going towards one of nodes at an i th stage of a trellis, and i indicates an integer greater than zero, comparing the accumulated distortions respectively corresponding to the 2N survivor paths to select N paths among the 2N survivor paths, wherein the accumulated distortions corresponding to selected N paths are smaller than the accumulated distortions corresponding to unselected N paths establishing the selected N paths as survivor paths going toward an i+1 th stage, and selecting an optimal path among the 2N survivor paths corresponding to each node of a last stage. |
申请公布号 |
EP2008271(A4) |
申请公布日期 |
2012.02.08 |
申请号 |
EP20060824126 |
申请日期 |
2006.12.13 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD |
发明人 |
LEE, KANG EUN;OH, EUN MI;SUNG, HO SANG;SON, CHANG YONG |
分类号 |
G10L19/02;G10L19/04 |
主分类号 |
G10L19/02 |
代理机构 |
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代理人 |
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地址 |
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