SYSTEMS FOR WIRELESSLY TRANSMITTING POWER AND DATA FROM AN ACTIVE HEADPIECE TO A COCHLEAR IMPLANT

A system includes an interface assembly and electronic circuitry. The interface assembly is configured to receive DC power and a self-clocking differential signal comprising a data signal encoded with a clock signal at a clock frequency. The electronic circuitry is configured to recover, from the self-clocking differential signal, the data signal and the clock signal at the clock frequency, and to generate, based on the recovered clock signal at the clock frequency, a first synthesized clock signal at a first carrier frequency and a second synthesized clock signal at a second carrier frequency. The electronic circuitry is also configured to wirelessly transmit AC power and a data-modulated AC signal to an implantable stimulator implanted within a patient. The AC power is at the first carrier frequency and based on the DC power, while the data-modulated AC signal is at the second carrier frequency and based on the recovered data signal.