公开(公告)号：US10306353B2

公开(公告)日：2019-05-28

申请号：US15561277

申请日：2016-03-18

Applicant: FOCAL JMLAB

Inventor： Shintaro Hosoi

IPC: H04R1/28 ,  H04R1/30 ,  G10K11/00

Abstract: The invention relates to an acoustic impedance matching device arranged so as to be mounted behind a loudspeaker. Said device comprises a chamber at least partially filled with an absorbent material. Said device is characterized in that the cross-section of the chamber increases with the distance from the loudspeaker, and the density of the absorbent material increases with the distance from the loudspeaker.

公开(公告)号：US20150317972A1

公开(公告)日：2015-11-05

申请号：US14650727

申请日：2013-12-24

Applicant: FOCAL JMLAB

Inventor： Bruno De La Nouvelle ,  Shintaro Hosoi

IPC: G10K13/00 ,  B29C70/40

CPC classification number: G10K13/00 ,  B29C70/40 ,  B29L2031/3418 ,  H04R7/125 ,  H04R2307/021 ,  H04R2307/025 ,  H04R2307/029 ,  Y10T156/1044

Abstract: The invention relates to a loudspeaker membrane having a sandwich structure, having a central web separating two layers of material based on high-rigidity threads impregnated with a polymer resin, characterized in that the central web is formed from a layer of material based on oriented natural fibres that are impregnated with a polymer resin.

Abstract translation: 本发明涉及一种具有夹层结构的扬声器膜，其具有基于浸渍有聚合物树脂的高刚性纱线分离两层材料的中心腹板，其特征在于，所述中心腹板由基于取向天然材料的材料层形成 用聚合物树脂浸渍的纤维。

公开(公告)号：US20180124501A1

公开(公告)日：2018-05-03

申请号：US15561277

申请日：2016-03-18

Applicant: FOCAL JMLAB

Inventor： Shintaro Hosoi

IPC: H04R1/28

CPC classification number: H04R1/288 ,  G10K11/002 ,  H04R1/2865 ,  H04R1/30

Abstract: The invention relates to an acoustic impedance matching device arranged so as to be mounted behind a loudspeaker. Said device comprises a chamber at least partially filled with an absorbent material. Said device is characterized in that the cross-section of the chamber increases with the distance from the loudspeaker, and the density of the absorbent material increases with the distance from the loudspeaker.

公开(公告)号：US09633648B2

公开(公告)日：2017-04-25

申请号：US14650727

申请日：2013-12-24

Applicant: FOCAL JMLAB

Inventor： Bruno De La Nouvelle ,  Shintaro Hosoi

IPC: H04R7/10 ,  G10K13/00 ,  B29C70/40 ,  H04R7/12 ,  B29L31/34

CPC classification number: G10K13/00 ,  B29C70/40 ,  B29L2031/3418 ,  H04R7/125 ,  H04R2307/021 ,  H04R2307/025 ,  H04R2307/029 ,  Y10T156/1044

Abstract: The invention relates to a loudspeaker membrane having a sandwich structure, having a central web separating two layers of material based on high-rigidity threads impregnated with a polymer resin, characterized in that the central web is formed from a layer of material based on oriented natural fibers that are impregnated with a polymer resin.