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专利名称:Method and apparatus for integrated
undersampling
发明人:Jeffrey Lee Sonntag申请号:US10930292申请日:20040831公开号:US07194365B1公开日:20070320
专利附图:
摘要:An undersampling system can comprise an IC that has integrated, on the samephysically contiguous IC, both an undersampler circuit and a receiver circuit whose input isto be monitored by undersampling. For a current phase of sample clocks relative to an
input signal, the input signal is sampled until a sufficient number of samples are collectedin a one dimensional histogram associated with the current phase. The phase of thesample clocks, relative to the input signal, can then be shifted. Such phase shift can beaccomplished by a phase mixer. The phase shift can be small enough to provide sufficientresolution in a composite sampled image of the input signal. A mean value can becomputed for each one dimensional histogram, resulting in a representation of theundersampled signal as a function of time that is suitable for further processing.
申请人:Jeffrey Lee Sonntag
地址:Portland OR US
国籍:US
代理机构:Park, Vaughan & Feming, LLP
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