Chording Keyboard

A text input device that generates characters by pressing multiple keys or moving multiple inputs simultaneously rather than pressing individual keys sequentially as on a standard keyboard. Similar to how piano chords combine multiple notes, each character is produced by a unique combination of inputs. Chording keyboards can dramatically reduce the number of physical keys or controls needed — a device with just 5-8 inputs can produce all alphanumeric characters through combinations. In accessibility, chording input is valuable for users with limited range of motion or who can only operate a small number of controls, as it eliminates the need to reach across a large keyboard. Examples include the Keybowl (using two dome positions), BAT keyboard, and various one-handed chord devices used in court reporting and assistive technology.