Apple filed a patent with the U.S. Patent & Trademark Office (USPTO) last week for an active stylus. According to the filing,”the stylus includes an electrode at a tip of the stylus; and powered circuitry coupled to the electrode and configured for capacitively coupling the electrode with a capacitive touch sensor panel. The powered circuitry can further include drive circuitry configured to output a drive voltage at the electrode and/or sense circuitry configured to sense a voltage received at the electrode.” In other words, the design can improve stylus sensing on conductive displays without being more costly to manufacture. As PatentlyApple notes , the patent wasn’t filed in Apple’s name, but by two employees of Apple, engineering manager Jonah Harley and hardware engineering manager David Simon, and the Cupertino-based company can take assignment for the patent before it is granted.
The full story can be read/found on Stick Them With The Pointy End: Apple Files ‘Active Stylus’ Patent