| 摘要 |
A quantity-of-jitter calculator comprising a timing generator, a section for calculating the value of an output signal based on a timing generated by the timing generator, first and second decision sections for deciding, respectively, whether the value of an output signal from the calculating section is equal to or higher than first and second reference vlues, and a section for calculating the quantity of jitter of the output signal based on the decision results from the first and second decision sections, wherein the section for calculating the quantity of jitter comprises a plurality of means for calculating the quantity of jitter, and a section for selecting any one of the plurality of means and for calculating the quantity of jitter of the output signal.
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