公开(公告)号：US10812909B2

公开(公告)日：2020-10-20

申请号：US16711429

申请日：2019-12-12

Applicant: EVA Automation, Inc.

Inventor： Thomas O'Brien ,  Martial André Robert Rousseau

IPC: H04R1/00 ,  H04R7/12 ,  H04R1/28 ,  H04R31/00

Abstract: A loudspeaker diaphragm (12) comprising a woven fibre body supports damping material (25), for example PVA polymer, on a rearward-facing surface (24). The woven fibre body may be formed of lengths (14) non-metallic fibre material (for example glass fibre) coating with a thin metal coating (32). The mass of the layer of damping material (25) may be less than the mass of the woven fibre body. An attractive sparkly looking loudspeaker diaphragm (12) may thus be provided which damps undesirable vibration whilst providing a flatter frequency-response curve (50).

公开(公告)号：US10547949B2

公开(公告)日：2020-01-28

申请号：US16427261

申请日：2019-05-30

Applicant: EVA Automation, Inc.

Inventor： Thomas O'Brien ,  Martial André Robert Rousseau

IPC: H04R7/00 ,  H04R7/12 ,  H04R1/28 ,  H04R31/00

Abstract: A loudspeaker diaphragm (12) comprising a woven fibre body supports damping material (25), for example PVA polymer, on a rearward-facing surface (24). The woven fibre body may be formed of lengths (14) non-metallic fibre material (for example glass fibre) coating with a thin metal coating (32). The mass of the layer of damping material (25) may be less than the mass of the woven fibre body. An attractive sparkly looking loudspeaker diaphragm (12) may thus be provided which damps undesirable vibration whilst providing a flatter frequency-response curve (50).

公开(公告)号：US20190297424A1

公开(公告)日：2019-09-26

申请号：US16427261

申请日：2019-05-30

Applicant: EVA Automation, Inc.

Inventor： Thomas O'Brien ,  Martial Andre Robert Rousseau

IPC: H04R7/12 ,  H04R1/28 ,  H04R31/00

Abstract: A loudspeaker diaphragm (12) comprising a woven fibre body supports damping material (25), for example PVA polymer, on a rearward-facing surface (24). The woven fibre body may be formed of lengths (14) non-metallic fibre material (for example glass fibre) coating with a thin metal coating (32). The mass of the layer of damping material (25) may be less than the mass of the woven fibre body. An attractive sparkly looking loudspeaker diaphragm (12) may thus be provided which damps undesirable vibration whilst providing a flatter frequency-response curve (50).

公开(公告)号：US20200120424A1

公开(公告)日：2020-04-16

申请号：US16711429

申请日：2019-12-12

Applicant: EVA Automation, Inc.

Inventor： Thomas O'Brien ,  Martial André Robert Rousseau

IPC: H04R7/12 ,  H04R31/00 ,  H04R1/28

Abstract: A loudspeaker diaphragm (12) comprising a woven fibre body supports damping material (25), for example PVA polymer, on a rearward-facing surface (24). The woven fibre body may be formed of lengths (14) non-metallic fibre material (for example glass fibre) coating with a thin metal coating (32). The mass of the layer of damping material (25) may be less than the mass of the woven fibre body. An attractive sparkly looking loudspeaker diaphragm (12) may thus be provided which damps undesirable vibration whilst providing a flatter frequency-response curve (50).

公开(公告)号：US10390141B2

公开(公告)日：2019-08-20

申请号：US15577333

申请日：2016-05-27

Applicant: EVA Automation, Inc.

Inventor： Thomas O'Brien ,  Martial André Robert Rousseau

IPC: H04R7/00 ,  H04R7/12 ,  H04R7/26 ,  H04R31/00

Abstract: A loudspeaker diaphragm (12) comprising a woven fiber body supports damping material (25), for example PVA polymer, on a rearward-facing surface (24). The woven fiber body may be formed of lengths (14) non-metallic fiber material (for example glass fiber) coating with a thin metal coating (32). The mass of the layer of damping material (25) may be significantly greater than the mass of the woven fiber body. An attractive sparkly looking loudspeaker diaphragm (12) may thus be provided which damps undesirable vibration while providing a flatter frequency-response curve (50).