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1. 发明授权

US06331831B1 A/D conversion through dithering 失效
标题翻译：通过抖动进行A / D转换
公开(公告)号：US06331831B1
公开(公告)日：2001-12-18
申请号：US09684181
申请日：2000-10-07
申请人： Zoran Cvetkovic , Ingrid Daubechies
发明人： Zoran Cvetkovic , Ingrid Daubechies
IPC分类号： H03M120
CPC分类号： H03M1/201
摘要： A/D conversion is achieved by employing a piecewise continuous dither signal such that a signal that results from combining the dither signal with the signal to be converted, has a zero-crossing within each interval Ij=(jT,(j+1)T), where j is an integer, T=&pgr;/&lgr;B, B is the bandwidth of the signal to be converted, and &lgr; is a constant that is greater than 1, and those zero crossings in adjacent intervals Ij are always separated by some minimal distance, &egr;, for all intervals Ij. Zero crossings of the combined signal are detected, and the instances where those crossings occur are encoded; one zero crossing for each interval.
摘要翻译：通过采用分段连续抖动信号来实现A / D转换，使得将抖动信号与要转换的信号组合的信号在每个间隔内具有零交叉Ij =（jT，（j + 1）T ），其中j是整数，T = pi / lambdB，B是要转换的信号的带宽，并且lambd是大于1的常数，并且相邻间隔Ij中的那些过零点总是被一些最小的距离，epsi，对于所有间隔Ij。检测到组合信号的零交叉，并且对这些交叉发生的情况进行编码; 每个间隔一个零交叉。

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