Patent ID: 7683724
Filing Date: 2010-03-23
Classification: B21C,F28D,F28F,H03B

Abstract:
1. An oscillator, comprising: a ring oscillator comprising a plurality of delay stages configurable for generating a plurality of signals having at least a first signal frequency and a plurality of signal phases, and a plurality of mixers coupled to the plurality of delay stages configurable for multiplying the at least first signal frequency by at least one predetermined multiplication factor for producing in-phase and quadrature phase signals with at least a second signal frequency that is higher than the at least first signal frequency, wherein a first one of the mixers mixes a first one of the plurality of signals with itself to generate the in-phase phase signal and a second one of the mixers mixes the first one of the plurality of signals with a second one of the plurality of signals to generate the quadrature phase signal.