Preserving Phase for Bionic Implants by Rearranging a Signal’s Components

Any signal can be decomposed into components of sinusoids. This pioneer technique expands the theory of interchangeability of phase and a shift of time (or a shift of another variable). It faithfully preserves phase information by mathematically rearranging the signal’s component to another time or place and assigns all the processed components a single user-defined phase. Since reconstructing the processed single-phase components highly approximates the original signal, this fundamental method can be widely used in fields that require phase preservation by single-phase stimulation, such as bionic implants (e.g., cochlear implants and retinal implants), and areas that need to preserve phase reliably and make all signal components share one universal phase.