公开(公告)号：WO2020112769A2

公开(公告)日：2020-06-04

申请号：PCT/US2019/063247

申请日：2019-11-26

Applicant: KNOWLES ELECTRONICS, LLC

Inventor： NAWAZ, Mohsin ,  SHUBHAM, Shubham

IPC: H04R19/00

Abstract: A diaphragm for use in a transducer, the diaphragm including a flexible layer configured to deflect in response to changes in a differential pressure. The flexible layer includes a lattice grid. The lattice grid includes a first plurality of substantially elongate openings oriented along an axis and a second plurality of substantially elongate openings extending generally parallel to the axis. The second plurality of openings is substantially offset from the first plurality of openings in a direction substantially parallel to the axis. The first plurality of openings and the second plurality of openings define a first plurality of spaced apart grid beams extending between and substantially parallel to the axis and a second plurality of spaced apart grid beams extending substantially perpendicular to the axis. The second plurality of grid beams is configured to connect adjacent ones of the first plurality of grid beams.

公开(公告)号：WO2019183283A2

公开(公告)日：2019-09-26

申请号：PCT/US2019/023260

申请日：2019-03-20

Applicant: KNOWLES ELECTRONICS, LLC

Inventor： NAWAZ, Mohsin ,  SHUBHAM, Shubham ,  SCHAFER, David ,  PEDERSEN, Michael ,  FÜRST, Claus ,  SHAJAAN, Mohammad ,  CECH, Jay

IPC: H04R19/04

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：WO2020112769A3

公开(公告)日：2020-06-04

申请号：PCT/US2019/063247

申请日：2019-11-26

Applicant: KNOWLES ELECTRONICS, LLC

Inventor： NAWAZ, Mohsin ,  SHUBHAM, Shubham

IPC: H04R19/00 ,  H04R19/04 ,  H04R7/08

Abstract: A diaphragm for use in a transducer, the diaphragm including a flexible layer configured to deflect in response to changes in a differential pressure. The flexible layer includes a lattice grid. The lattice grid includes a first plurality of substantially elongate openings oriented along an axis and a second plurality of substantially elongate openings extending generally parallel to the axis. The second plurality of openings is substantially offset from the first plurality of openings in a direction substantially parallel to the axis. The first plurality of openings and the second plurality of openings define a first plurality of spaced apart grid beams extending between and substantially parallel to the axis and a second plurality of spaced apart grid beams extending substantially perpendicular to the axis. The second plurality of grid beams is configured to connect adjacent ones of the first plurality of grid beams.

公开(公告)号：WO2019183283A3

公开(公告)日：2019-09-26

申请号：PCT/US2019/023260

申请日：2019-03-20

Applicant: KNOWLES ELECTRONICS, LLC

Inventor： NAWAZ, Mohsin ,  SHUBHAM, Shubham ,  SCHAFER, David ,  PEDERSEN, Michael ,  FÜRST, Claus ,  SHAJAAN, Mohammad ,  CECH, Jay

IPC: H04R19/04 ,  B81B3/00 ,  H04R19/00 ,  G01L9/00

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.