It seems that Sony may have plans to introduce its own virtual reality headset for the PlayStation 4. A few different patents filed by the company recently could hint at larger plans for the future of the console.
A NeoGAF user (via Push Square) noticed the patents. One is for an audio system that could alert you to things happening out in the real world when wearing a full immersion headset. That way, you wouldn't sit idly by with your noise-canceling headphones while your fire alarm blares. The other patent is for a headset with motion sensing features, similar to the Oculus Rift.
Both patents were filed by Sony Computer Entertainment Europe, and specifically by former Evolution Studios employees Simon Benson and Ian Bickerstaff. That studio is currently at work on Driveclub, which has been persistently tied to rumors regarding Sony's headset plans. Of course, Sony patents new technologies at a fairly regular pace, and sometimes nothing comes of it, so we'll have to wait to see how these pan out.
Driveclub was recently delayed into 2014 to grant more time for the team to deliver on its vision. A free version of the game will be available to PlayStation Plus members at launch.