1. A method, comprising: receiving, by a system comprising a processor, sensory information indicative of a proximity level of interaction differentiation with respect to an object in proximity to, or in contact with, an input device; determining, by the system, a gesture command from the sensory information based on a trigonometric function of a first beat frequency in a first resonant circuit associated with a first character input component of the input device and a second beat frequency in a second resonant circuit associated with a second character input component of the input device; and outputting, by the system, an action indication based on the gesture command.