[music-dsp] tektronix patent (was re: Effective Waveform Visualization)

Nigel Redmon earlevel at earlevel.com
Sat Feb 19 16:27:33 EST 2005

Actually, it was 17 years back then, and yes, it's almost certainly 

On Feb 19, 2005, at 12:51 PM, David Lowenfels wrote:

> Umm... what's the big deal Josh? If the patent was defended in the 
> 80's, I would guess that it is expired by now. They only last 20 years 
> max, right?
> -D

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