Yeah, those look like prototypes that were designed to make discussions like this more difficult, making those who are doing the talking say, "well, there technically is a way, but it's a prototype and never will really take off..." Let's just say that for all intents and purposes, no devices exist that will do the conversion that a normal person could get a hold of. That way, everyone is right, and we can look at these weird pieces of technology and say, "How did that ever get onto physical pieces of equipment?"