Google is doing a lot of this stuff, filing patents on machine learning techniques from decades ago and loads of other things, and often getting the patents granted. It's pretty infuriating.
Figured stuff like this would happen when the US switched from first to invent to first to file. It was a bad change... But benefits the big co's who write the legislati.. I mean participate in our fine democracy by providing campaign contributions to those fine selfless individuals who run things from Washington.
Another take from a Daala developer: <a href="https://xiphmont.dreamwidth.org/84214.html" rel="nofollow">https://xiphmont.dreamwidth.org/84214.html</a>