US Patent 7995031 Tongue-operated input device for control of electronic systems

A method and apparatus for tongue-operated control of an electronic system is presented. The apparatus includes a sensor-mounting device secured in the mouth, a sensor that interfaces to the tongue and a sensor interface device that converts sensor outputs to sensor signals proportional to a measure of the interface of the tongue to the sensor, computes control signals from a vector sum of sensor signals, and couples either control signals or sensor signals to the electronic system by cable, radio frequency or infrared transmission.