replace in opening quotations

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2022-04-12 23:17:03 -03:00
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@@ -107,8 +107,8 @@ threshold levels; (c) debounced using dead periods.</CAPTION>
Figure <A HREF="#fig03.07">3.7</A> (part a) shows a simple realization of this idea.
We assume the signal input is as shown in the continuous graph. A horizontal
line shows the constant value of the threshold. The time sequence marked
``onsets" contains one event for each time the signal crosses the threshold
from below to above; the one marked ``turnoffs" marks crossings in the other
"onsets" contains one event for each time the signal crosses the threshold
from below to above; the one marked "turnoffs" marks crossings in the other
direction.
<P>