If you are going to build a jet engine you will deal with this patent:
http://worldwide.espacenet.com…?CC=GB&NR=347206&KC=&FT=E
(Frank Whittle, 1930)
It does not guide you to the perfect efficient jet engine, as it just covers some crucial basics, but this is where you start.
Even after 80 years, probably every commercial jet engine is based on this important patent.
If you are going to build a guitar amp profiler you will deal with thispatent:
http://worldwide.espacenet.com…spacenet.com&locale=en_EP
It does not guide you to the perfect dynamic amp profiling, as it just covers some crucial basics, but this is where you start.
The patent expires in 2026.
CK