Yes, it could be that the "invention" implements the algorithms trivially in GPU -- like anyone would implement when getting started in to GPU programming. It is like Nokia mobile connected to the wall power outlet. The Nokia mobile does not take power directly from the wall because that "invention" is patented. Nokia mobile is forced to take power from the battery (which could be next to dead). All this even devices have taken power directly from the wall for decades. GPU is yet another new gear to play with, just like mobiles. Anything can be patented, I'm afraid. The article says quite clearly that the invention is patented. They would be fools not to try to patent it because the market is huge. I have had years this idea of using graphics texture functions to generate audio noises and signals. This app runs naturally on GPU. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software