Scientists have developed smart rings and wristbands that can allow users to type on mobile devices using hand gestures.
Using acoustic chirps emitted from a ring and received by a wristband, the system is able to recognise 22 different micro finger gestures that could be programmed to various commands — including a T9 keyboard interface, a set of numbers, or application commands like playing or stopping music.
The system can accuratly recognise hand poses using the 12 bones of the fingers and digits ‘1’ through ‘10’ in American Sign Language (ASL).
