| 摘要 |
<p>A recurring analog signal is digitized by repeatedly comparing it to a reference level, or to several reference levels, during each signal occurrence to determine where the signal has a value related to each reference level. The reference level, or levels, are changed between signal occurrences but remain constant during each occurrence. Bigitiza- tion is completed after several occurrences of the signal have been analyzed in this manner.</p> |
