Looking at (as much as possible, via 3 links to the original article
) what that patent is attempting, it seems very much to be grand gestures and easily recognisable general facial expressions, similar to the voice recognition I mentioned in a previous post.
However, Shifty specifically mentioned "intricate" and being able to recognise how people are actually feeling. Smiling doesn't always mean happy, just as not smiling doesn't mean unhappiness either. We are a long way, I believe, from facial recognition and AI understanding to use it in a believable way in the entertainment medium. That Sony patent seems to offer nothing more at present than the smoke and mirrors of something like Milo.
Oh, and is my son smiling in this pic?