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    • 17. 发明授权
    • Multi-path trellis coded quantization method and multi-path coded quantizer using the same
    • 多路径网格编码量化方法和使用其的多路径编码量化器
    • US08706481B2
    • 2014-04-22
    • US11608956
    • 2006-12-11
    • Kang Eun LeeEun Mi OhHo Sang SungChang Yong Son
    • Kang Eun LeeEun Mi OhHo Sang SungChang Yong Son
    • G10L19/12
    • G10L19/032
    • 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.
    • 一种可用于语音编码系统的多径网格编码量化(TCQ)的方法,以及使用该方法的量化器。 具体地,该方法包括计算对应于2N个幸存路径的累积失真,其中N表示大于2的整数,2N个幸存路径中的每一个正在网格的第i阶段中的一个节点,i表示大于 比较分别对应于2N个幸存路径的累积失真以选择2N个幸存路径中的N个路径,其中对应于所选N个路径的累积失真小于对应于建立所选择的N个路径的未选择的N个路径的累积失真作为幸存者 路径朝向第i + 1级,并且在对应于最后一级的每个节点的2N个幸存路径中选择最佳路径。