anti-sync

[Martin Czech]

... all this talking about chaotic systems ...

It appears to me that influencing internal nodes of an oscillator is
essential for interesting nonlinear feedback. In most cases we can
influence the charge current and some circuits provide sync. Syncing
means to force the oscillator phase to some reset level e.g. in order
to achieve phase coherence. Now, one could also think the other way ,
not syncing but pushing the oscillator away,  - anti sync -.  This
could be done by adding some controll voltage to the threshold voltages
of the oscillator ( saw osc. have one threshold, tri have two).
Raising the threshold for some period of time would mean to elongate
the oscillator period (in opposite to shorten it with sync), and of
course also changing the peak value. By clever setup of two oscillators
it seems to be possible that they never come to close in phase, because
they push each other away. Lowering the threshold with a negative
control voltage comes close to weak sync but of course it makes a liite
differerence: changing the threshold may not cause imediate
reset/reverse if the oscillator is still far away whereas sync causes
imediate action. This sounds pretty chaotic to me, it is cheap and easy
to implement and I don't think that a reasonable cicuit will have more
phase jitter or less frequency stability then other cicuits. What do
you think ?