公开(公告)号：US11825266B2

公开(公告)日：2023-11-21

申请号：US16982497

申请日：2019-03-20

Applicant: Knowles Electronics, LLC

Inventor： Mohsin Nawaz ,  Shubham Shubham ,  David Schafer ,  Michael Pedersen ,  Claus Furst ,  Mohammad Shajaan ,  Jay Cech

IPC: H04R19/04 ,  B81B7/02 ,  H04R31/00 ,  B81C1/00 ,  G01L9/00 ,  G01L19/14

CPC classification number: H04R19/04 ,  B81B7/02 ,  B81C1/00341 ,  G01L9/0072 ,  G01L19/14 ,  H04R31/00 ,  B81B2201/0257 ,  B81B2201/0264 ,  B81B2203/0127 ,  B81B2203/0136 ,  B81B2207/03 ,  B81C2201/0109 ,  B81C2201/0132 ,  H04R2201/003

Abstract: Microphones including a housing defining a cavity, a plurality of conductors positioned within the cavity, at least one dielectric bar positioned within the cavity, and a transducer diaphragm. The conductors are structured to move in response to pressure changes while the housing remains fixed. A first conductor generates first electrical signals responsive to the pressure changes resulting from changes in an atmospheric pressure. A second conductor generates second electrical signals responsive to the pressure changes resulting from acoustic activity. The dielectric bar is fixed with respect to the cavity and remains fixed under the pressure changes. The dielectric bar is adjacent to at least one of the conductors. In response to an applied pressure that is an atmospheric pressure and/or an acoustic pressure, the transducer diaphragm exerts a force on the housing and displaces at least a portion of conductors with respect to the dielectric bar.

公开(公告)号：US20210029470A1

公开(公告)日：2021-01-28

申请号：US16982497

申请日：2019-03-20

Applicant: Knowles Electronics, LLC

Inventor： Mohsin Nawaz ,  Shubham Shubham ,  David Schafer ,  Michael Pedersen ,  Claus Furst ,  Mohammad Shajaan ,  Jay Cech

IPC: H04R19/04 ,  H04R31/00 ,  B81B7/02 ,  B81C1/00 ,  G01L9/00 ,  G01L19/14

Abstract: Microphones including a housing defining a cavity, a plurality of conductors positioned within the cavity, at least one dielectric bar positioned within the cavity, and a transducer diaphragm. The conductors are structured to move in response to pressure changes while the housing remains fixed. A first conductor generates first electrical signals responsive to the pressure changes resulting from changes in an atmospheric pressure. A second conductor generates second electrical signals responsive to the pressure changes resulting from acoustic activity. The dielectric bar is fixed with respect to the cavity and remains fixed under the pressure changes. The dielectric bar is adjacent to at least one of the conductors. In response to an applied pressure that is an atmospheric pressure and/or an acoustic pressure, the transducer diaphragm exerts a force on the housing and displaces at least a portion of conductors with respect to the dielectric bar.