Patent ID: 8175293
Filing Date: 2012-05-08
Classification: H04R

Abstract:
1. An apparatus comprising: a first member including a plurality of portions adjacent to each other and separated from one another by electrical insulator material; a second member configured to form capacitors with the plurality of portions of the first member; wherein one of the first member and the second member are configured to vibrate in response to sound waves, and a first portion of the plurality of portions is configured to provide a first output signal representative of the sound waves and a second portion of the plurality of portions is configured to provide a second output signal representative of the sound waves; an amplifier configured to amplify at least the first and second output signals; a first switch in an electrical path between the first portion and the amplifier; a second switch in an electrical path between the second portion and the amplifier; and a processor configured to determine signal quality of a combined signal from at least the first portion and the second portion, and to control at least the first switch and the second switch in response to the determination.