Patent ID: 11889252
Assignee: KNOWLES ELECTRONICS, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 21:
22. A method comprising:
producing one or more DC bias voltages and supplying the produced DC bias voltages to a sensor, which includes a pair of transduction elements;
detecting by the sensor a stimulus, where within the sensor the pair of transduction elements are organized and arranged for respectively producing first and second electrical signals, which are substantially 180 degrees out of phase in response to the detected stimulus, where each one of the pair of transduction elements have a potential difference in sensitivity to the detected stimulus, which can manifest in the first and second electrical signals that are being respectively produced by the pair of transduction elements of the sensor, that have a difference in amplitude;
producing at a pair of output terminals of an amplifier circuit a differential output signal, based upon receipt of the first and second electrical signals from the sensor;
determining by a compensation circuit a balance signal based on an output signal being produced by the amplifier circuit, where the balance signal compensates for any difference in amplitude in the first and second electrical signals that are received by the amplifier circuit from the sensor; and
applying the balance signal to the sensor.