Patent ID: 9516420
Filing Date: 2016-12-06
CPC Classification: B06B,H04R

Claim Text:
1. A transducer, comprising: a first electrode; a membrane arranged over the first electrode and spaced apart from the first electrode, wherein the membrane at least partially overlaps the first electrode; and a first support member that supports the membrane such that the membrane is spaced apart from the first electrode, wherein the membrane comprises i) a vibrating portion that is movable in a direction substantially perpendicular to the membrane and ii) a fixed portion that is supported by the first support member, wherein the first support member is configured to adjust the distance between the fixed portion and the first electrode when an electrical signal is applied to the first support member, and wherein the first support member is further configured to adjust the distance between the fixed portion and the first electrode to: i) a first distance in response to the transducer being operated as a microphone and ii) a second distance in response to the transducer being operated as a speaker, the first distance being less than the second distance.