摘要 |
A method of analog-digital conversion is disclosed, wherein sub-sampling of an analog signal is performed at a certain multiple n of the basic sampling rate, wherein a discrimination signal including extreme position signals is obtained by detecting the level difference between the analog signal and an unsharp signal, and wherein from n consecutively-produced values representative of the analog signal the digital signal to be output is obtained as being; if the extreme position signal is detected, then the consecutively-produced representative value corresponding thereto; otherwise, the average of the n consecutively-produced representative values. |