Patent ID: 7167062

Claim:
An oscillator circuit, at least comprising: at least one oscillator device having at least one oscillator bias contact; a signal shaper device arranged for outputting a limited output signal with a constant amplitude when amplitude of a signal provided by the oscillator device is above a boundary value; a bias source having a source contact connected to said oscillator bias contact; said bias source having a first state in which a high level of energy is provided at said source contact, and a second state in which a lower level of energy is provided at said source contact, wherein the high level of energy at said source contact will keep the oscillator device in an oscillating state, whereas the lower level of energy will result in a decreasing amplitude of the signal provided by the oscillator device; and said circuit further including: at least one switch for switching the bias source from the first state to the second state when a predetermined criterion is satisfied and from the second state back to the first state before the decreasing amplitude of the signal provided by the oscillator device decreases below the boundary value.