Apple Invents Finger-Mounted Accessory Systems for Modifying Finger Sensations during Finger Press Input Events
Today the US Patent & Trademark Office published a patent application from Apple that relates to finger-mounted accessory devices primarily designed for use with Apple's future Head Mounted Device (HMD) as input-output devices. More specifically, the patent covers systems for modifying finger sensations during finger press input events.
Source: patentlyapple.com