Remember those "Fortaleza" AR glasses we saw in a leaked Microsoft document back when the Xbox One was still the Xbox 720? It looks like those might actually be a thing, if a patent application from Redmond is any indication. It touts the idea of "multiplayer gaming with a head-mounted display," claiming the device could receive voice commands, track your eyes, calculate depth and recognize the faces of fellow players. All that would be in the rather narrow service of letting you invite others and accept invitations to a game through strictly visual means, though. That makes it similar to another recent Microsoft patent we saw for augmenting live events with AR, since the emphasis is on a specific usage rather than the eyewear itself. We might even see an application some day for actual gaming on such a device, but meanwhile, check after the break for more images.