''Cold plasmas are also employed in industry, in semiconductor manufacturing and new flat screen televisions''
http://www.asiplasma.com/pages/asi_decontamination.htm

Polis and Woody do have some things in common - Old stuff, but yet they do have the patents; then throw-in PN understandings of signals thru a gas.

''The science of noise cancellation and the ability to create a sound wave 180 degrees out of phase with the original sound wave to interfere and cancel is well known. Noise cancellation algorithms and systems have been developed for a variety of uses ranging from headphones to industrial machinery. These methods generally use a speaker to produce the interfering and canceling wave.''

http://www.asiplasma.com/pages/asi_sound_reduction.htm

all-fwiw

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