Patent ID: 6864754

Claim:
A device for receiving a time varying input signal and for generating both an oscillating output signal and a mixed output signal, the mixed output signal representing a translation of the oscillating output signal, the device comprising: (a) a differential pair of transistors for receiving the time varying input signal and for generating a differential pair output signal having a time varying input signal component and other signal components; (b) a first filter network, operatively connected to the differential pair for receiving the varying input signal component from the differential pair, for generating a negative resistance across two nodes connected to the first filter network, and for selectively providing the oscillating output signal by providing an impedance across the two nodes; and (c) a second filter network, operatively connected to the two nodes, for receiving the oscillating output signal, and operatively connected to the differential pair for receiving the other signal components, for generating and selectively passing the mixed output signal.