Tag Archives: track your finger in mid-air

Scientists, including those of Indian-origin, have developed a new sonar technology that allows you to interact with mobile devices by writing or gesturing on a tabletop, a sheet of paper or even in mid-air. An app, FingerIO tracks fine-grained finger movements by turning a smartphone or smartwatch into an active sonar system using the device’s own microphones and speakers. Since ... Read More »