公开(公告)号：US07876247B1

公开(公告)日：2011-01-25

申请号：US12325223

申请日：2008-11-30

申请人： Shawn David Hunt ,  Carlos Fabian Benitez-Quiroz

发明人： Shawn David Hunt ,  Carlos Fabian Benitez-Quiroz

IPC分类号： H03M1/20

CPC分类号： H03M7/3008 ,  H03M7/3024

摘要： A new technique on the dithering of one-dimensional signals is presented. The novel technique determines whether dither is needed when reducing the bit depth and evaluates whether the total error of the un-dithered quantization is white noise. If this is the case, then no undesired harmonics are added in the quantization or re-quantization process. The novel technique presents a state of the art signal-dependent dither having a lower quantization noise.

摘要翻译： 提出了一种关于一维信号抖动的新技术。 该新颖的技术确定了在减少比特深度时需要抖动，并且评估未抖动量化的总误差是否为白噪声。 如果是这种情况，则在量化或重新量化过程中不会添加不期望的谐波。 该新技术呈现出具有较低量化噪声的最先进的信号相关抖动。