Technonoise is a genre of electronic music, which is popular in Europe. As the word implies, technonoise is a noisy version of techno music. Tecdhnonoise is underground, non-mainstream, kind of music.
A person or firm who takes a technology idea and makes a product out of it, make it appear that it is their original idea, make it proprietary, make people think that it is the only way to go (the others are uncool and socially unacceptable), and sell it for far more than what it is worth.