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发明授权
US07573952B1 Barycentric coordinate technique for resampling quantized signals 有权
用于重新采样量化信号的重心坐标技术

Barycentric coordinate technique for resampling quantized signals
摘要：
One embodiment of the present invention provides a system that resamples a quantized signal. During operation, the system receives the quantized signal. Next, the system smoothes and resamples the quantized signal to produce a resampled signal. The system then quantizes the resampled signal to produce a quantized resampled signal. For a given time point, the system determines a probability distribution for the resampled signal across quantization levels at the given time point by using information about the values of the resampled signal at neighboring time points. Note that the probability distribution specifies the probability that the resampled signal would be sampled at specific quantization levels. The system then uses the probability distribution to probabilistically select a quantization level for the resampled signal for the given time point.
摘要（中）：

本发明的一个实施例提供一种重新采样量化信号的系统。 在运行期间，系统接收量化信号。 接下来，系统平滑和重新采样量化信号以产生重采样信号。 然后，系统对重采样信号进行量化以产生量化的重采样信号。 对于给定的时间点，系统通过使用关于在相邻时间点的重采样信号的值的信息来确定在给定时间点处跨量化电平的重采样信号的概率分布。 注意，概率分布规定了在特定量化级别对采样信号进行采样的概率。 系统然后使用概率分布概率地选择给定时间点的重采样信号的量化电平。

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