Finger Braille

A communication method used primarily by deaf-blind people, in which a sender taps or presses on the fingers of the receiver to represent Braille dot patterns, simulating typing on a Braille typewriter. The receiver's six fingers (three on each hand) correspond to the six dots of a Braille cell. Finger Braille requires a skilled communication partner present in person, making it expensive and not available on demand. Research into vibrotactile mobile devices like HoliBraille aims to replicate this communication method electronically, enabling remote and independent communication for deaf-blind users through standard smartphones.