Indeed, the patent(s) [1] are particularly enlightening. Still a bit astonishing that it actually works though. [1] https://patents.justia.com/patent/9040883 h

Indeed, the patent(s) [1] are particularly enlightening. Still a bit astonishing that it actually works though. [1] https://patents.justia.com/patent/9040883 https://patents.justia.com/patent/9040883