Patent ID: 8625661

Claim:
A system for modulating a digital carrier signal with N data bits to generate a frame of a pulse edge modulated (PEM) signal having N+1 pulse edges, wherein the frame comprises a frame synchronization edge and N modulated edges, each one of the N modulated edges being modulated with a respective one of the N data bits, each one of the N data bits having a value corresponding either to a first state or to a second state, and N is an integer greater than one, the system comprising: a signal generator configured to provide a digital carrier signal, wherein the carrier comprises a pulse train having at least N+1 pulse edges; and a modulator configured to modulate each one of N edges of the carrier with a respective one of the N data bits, wherein the modulator is configured to select an edge of the carrier as the frame synchronization edge, wherein modulating an edge of the carrier by a data bit at the first state temporally displaces such edge by a first amount of time, wherein modulating an edge of the carrier by a data bit at the second state temporally displaces such edge by a second amount of time, and wherein the PEM signal comprises a multiphase signal of three phases, where each of the three phases is equally spaced in phase angle.