Patent ID: 9516421
Filing Date: 2016-12-06
CPC Classification: H01L,H04R

Claim Text:
1. An acoustic sensing apparatus, comprising: a diaphragm; a support structure surrounding the diaphragm, wherein a gap is located between the support structure and the diaphragm, and wherein the diaphragm and the support structure separate a front volume and a back volume; one or more sensing elements located in the gap, wherein a first end of each of the one or more sensing elements is coupled to the support structure and is nonmoving with respect to the support structure, and wherein a second end of each of the one or more sensing elements is free to move with respect to the support structure; a sealing material extending between the diaphragm and the support structure, wherein the sealing material creates an acoustic seal between the front volume and the back volume; and a sensor that converts a diaphragm movement into an electrical signal, wherein the second end of each of the one or more sensing elements is coupled to the sealing material.