Patent ID: 8275462

Claim:
A method comprising: providing, by a radio frequency (RF) telemetry transmitter included in a cochlear implant system, a clock signal; generating, by the RF telemetry transmitter, a phase shifted clock signal that is phase shifted relative to the clock signal by a predetermined phase delay that is set by a delay control signal; generating, by the RF telemetry transmitter based on the clock signal and the phase shifted clock signal, a first switch signal and a second switch signal, the second switch signal being phase shifted relative to the first switch signal by the predetermined phase delay; generating, by the RF telemetry transmitter based on the first and second switch signals, an output signal to be transmitted to an implantable receiver circuit included within the cochlear implant system, the output signal containing power and data; and adjusting, by the RF telemetry transmitter, a power level of the output signal in response to an adjustment in the predetermined phase delay.