Microsoft has filed a patent for devices that transfer electrical activity from muscle movements to computer control inputs, reports TechFlash. The tech blog is posting material from the filing showing a system that places sensors measuring electrical muscle activity in the head, arms, legs and chest that it then translates into instructions to a computer. The filing covers how the technology can be applied to create enhanced computer interfaces and instrument control in cars as well as medical technology where surgeons can avoid touching electrical instruments during procedures. TechFlash has a video from Microsoft Research demonstrating the tech, at one point showcasing how it can be used to play Activision’s music rhythm game Guitar Hero. The video along with text and diagrams from the filing are posted on the site. Check it out at TechFlash.