Wideband Data And Power Transmission Using Pulse Delay Modulation

Abstract

Certain implementations may include systems, methods, and apparatus for wirelessly transmitting data and power across inductive links using pulse delay modulation (PDM). According to an example implementation, a method is provided that includes generating a power carrier signal; generating a data waveform from a series of binary bits, the data waveform including a series of pulses in synchronization with the power carrier signal; transmitting, from one or more transmitting (Tx) coils of an inductive link, the power carrier signal and the data waveform; receiving, by one or more receiving (Rx) coils of the inductive link, an interference signal, the interference signal based at least in part on a superposition of the transmitted power carrier signal and the transmitted data waveform; determining zero crossings of the received interference signal; determining delays associated with the zero crossings; and determining the data packet based at least in part on the delays.