Patent ID: 8907734

Claim:
An oscillator system, comprising: a surface acoustic wave (SAW) oscillator for producing a signal having a controllable frequency; a passive vibration suppressor mechanically coupled to the SAW oscillator for suppressing vibrations on the SAW oscillator; an active vibration suppressor comprising: a crystal oscillator; an accelerometer for sensing vibrations on the crystal oscillator; and wherein the crystal oscillator produces a signal having a frequency controlled by the accelerometer; a control loop fed by the crystal oscillator and the SAW oscillator for controlling the frequency of the signal produced by the SAW oscillator in accordance with a difference between the signal produced the crystal oscillator and the signal produced by the SAW oscillator; and wherein: the passive vibration suppressor suppresses vibrations above a predetermined bandwidth BW1 on the SAW oscillator; the active vibration suppressor has a predetermined bandwidth BW2; and the control loop having a bandwidth BW3 and wherein BW1<BW3<BW2.