Alby_da_Wolf on 06 September 2011
Console companies almost never invent really new stuff, because generally they can use tech only when it becomes affordable enough for relatively cheap devices, so when it's not new anymore, actually. Obviously, though, each one finds a more or less original way to combine different techs into something useful for gaming, and they obviously patent such implementations and designs, mainly to protect not only their ideas, but also themselves from patent suits by competitors and patent trolls.
