Patent ID: 7683710

Claim:
A non-linear amplifier circuit including: an amplifier having an amplifier output and an amplifier input; a first feedback path from said output of said amplifier to a first point upstream of said amplifier, wherein said first feedback path includes a first diode electrically connected between said amplifier output and said amplifier input, and a second diode electrically connected between said amplifier output and said amplifier input, wherein said second diode is oppositely poled from said first diode; a second feedback path from said output of said amplifier to a second point upstream of said amplifier, wherein at least one circuit component having non-zero impedance is positioned between said first point and said second point; and at least one circuit component having a non-zero capacitance, wherein said at least one circuit component having non-zero capacitance is positioned upstream from both said first point and said second point.