US Patent 10409327 Thumb-controllable finger-wearable computing devices

A finger-wearable computing device comprises a ring base configured to be worn on a finger of a wearer's hand, and a track pad supported by the ring base and configured to detect a location of engagement between a marker point on a thumb of the wearer's hand and the track pad. The finger-wearable computing device is configured to generate a command signal indicative of the location of engagement for controlling a component of the finger-wearable computing device or for controlling a remote electronic device.