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Transcoding between the indices of multipulse dictionaries used in compressive coding of digital signals
Transcoding between the indices of multipulse dictionaries used in compressive coding of digital signals
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机译:数字信号压缩编码中使用的多脉冲字典索引之间的代码转换
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摘要
The invention relates to compressive transcoding between pulse coders using multipulse dictionaries in which each pulse occupies a position marked by an index. For each current pulse position supplied by a first coder, a neighborhood (Vge, Vde) is formed around that position. As a function of the pulse positions accepted by the second coder, pulse positions are selected in an ensemble constituted by a union of the neighborhoods. The second coder finally receives this selection (sj), involving a number of pulse positions smaller than the total number of pulse positions in the dictionary of the second coder.
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机译:本发明涉及使用多脉冲字典的脉冲编码器之间的压缩代码转换,其中每个脉冲占据由索引标记的位置。对于由第一编码器提供的每个当前脉冲位置,邻域(V g Sub> e Sup>,V d Sub> e Sup>)在该位置周围形成。根据第二编码器接受的脉冲位置,在由邻域的并集构成的整体中选择脉冲位置。第二个编码器最终接收到此选择(s j Sub>),该选择所包含的脉冲位置数量小于第二个编码器字典中的脉冲位置总数。
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