Patent ID: 8284830

Claim:
A system for demodulating a modulated edge of a pulse edge modulated (PEM) signal, wherein the modulated edge has either a first position in time or a second position in time relative to the position of the modulated edge prior to modulation, a data bit being modulated on the modulated edge and the data bit has a value corresponding either to a first state or to a second state, the system comprising: a signal recovery circuit configured to recover a digital carrier signal from the PEM signal, wherein the recovered carrier comprises a plurality of pulse edges, wherein one of the plurality of edges of the recovered carrier corresponds to the position in time of the modulated edge prior to modulation; and a demodulator configured to demodulate the modulated edge and to provide an output corresponding to the state of the data bit, wherein demodulating the modulated edge determines that the modulated edge has either a first position in time or a second position in time relative to the position of the modulated edge prior to modulation, and the first position in time of the modulated edge corresponds to the first state of the data bit and the second position in time of the modulated edge corresponds to the second state of the data bit.