A system for converting an input oscillation having an input frequency into an output
oscillation having an output frequency is disclosed. The system comprises: a controller
configured for receiving the input oscillation and responsively generating a multi-component
drive signal. A frequency of at least one component of the drive signal is other than two times
the input frequency. In some embodiments, a frequency of another component of the drive
signal equals about two times the output frequency. The system also comprises an oscillator …

A system for converting an input oscillation having an input frequency into an output
oscillation having an output fre quency is disclosed. The system comprises: a controller
configured for receiving the input oscillation and respon sively generating a multi-
component drive signal. A fre quency of at least one component of the drive signal is other
than two times the input frequency. In some embodiments, a frequency of another
component of the drive signal equals about two times the output frequency. The system also …