公开(公告)号：US11627411B2

公开(公告)日：2023-04-11

申请号：US17787374

申请日：2020-12-21

Applicant: FOCAL JMLAB

Inventor： Arnaud Cazes Bouchet

IPC: H04R1/34 ,  H04R1/02 ,  H04R7/18 ,  H04R7/12 ,  H04R1/30

Abstract: AMENDMENT TO THE ABSTRACT
The invention relates to an enclosure for diffusing sound by reverberation comprising:—a loudspeaker comprising a fixed frame, a cylindrical support and a membrane connected to an upper bearing surface of the frame; and—a wave guide mounted on the upper bearing surface, the wave guide being substantially in the form of a truncated pyramid with a long wall forming a front face, a short wall and lateral uprights; the wave guide comprising at least one acoustic wall fastened to the lateral uprights, the acoustic wall extending tangentially relative to the generatrix line of the cylindrical support closest to the front face.

公开(公告)号：US20230044069A1

公开(公告)日：2023-02-09

申请号：US17787374

申请日：2020-12-21

Applicant: FOCAL JMLAB

Inventor： Arnaud Cazes Bouchet

IPC: H04R1/34 ,  H04R1/02 ,  H04R7/12 ,  H04R7/18

Abstract: The invention relates to an enclosure for diffusing sound by reverberation comprising: —a loudspeaker comprising a fixed frame, a cylindrical support and a membrane connected to an upper bearing surface of the frame; and—a wave guide mounted on the upper bearing surface, the wave guide being substantially in the form of a truncated pyramid with a long wall forming a front face, a short wall and lateral uprights; the wave guide comprising at least one acoustic wall fastened to the lateral uprights, the acoustic wall extending tangentially relative to the generatrix line of the cylindrical support closest to the front face.

公开(公告)号：US20200053474A1

公开(公告)日：2020-02-13

申请号：US16061552

申请日：2016-11-15

Applicant: FOCAL JMLAB

Inventor： Giuliano Nicoletti

IPC: H04R9/06 ,  H04R7/14 ,  H04R9/04

Abstract: A circular acoustic membrane having an upper surface and an opposite lower surface, said membrane being intended to be coupled, at the lower surface thereof, to a mobile winding via a support. The membrane has an annular fold concentrically delimiting, in the membrane, a circular central portion and an annular peripheral portion. In addition, the central portion has a concavity turned towards the upper surface and the internal edge of the fold is carried by the lower surface and comprises an attachment surface intended for the coupling of said support of the coil.

公开(公告)号：USD852162S1

公开(公告)日：2019-06-25

申请号：US29623112

申请日：2017-10-23

Applicant: FOCAL JMLAB

Designer： Alain Pineau

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：US20240334152A1

公开(公告)日：2024-10-03

申请号：US18698642

申请日：2022-10-04

Applicant: The Trustees of Princeton University ,  Focal jmlab

Inventor： Edgar Choueiri ,  Rahulram Sridhar ,  Joseph G Tylka ,  Léo Guadagnin

IPC: H04S7/00 ,  H04R1/40 ,  H04R3/14

CPC classification number: H04S7/307 ,  H04R1/403 ,  H04R3/14 ,  H04S7/301 ,  H04S7/303 ,  H04R2201/403 ,  H04S2420/07

Abstract: The invention relates to a system for generating sound waves for at least two separate zones of a single space. The system includes, for each zone of said space: at least one array of high-frequency loudspeakers forming a directional sound wave; and at least one low-frequency loudspeaker. The system also comprises means for audio processing of the signals transmitted to the loudspeakers, which means control at least one loudspeaker to generate destructive sound waves in at least one zone of said space and to obtain distinct sound contents in said at least two distinct zones of said space. To do this, the audio-processing means control each low-frequency loudspeaker individually and each array of high-frequency loudspeaker mutually in order to generate the destructive sound waves.

公开(公告)号：US20240314487A1

公开(公告)日：2024-09-19

申请号：US18268480

申请日：2021-12-23

Applicant: FOCAL JMLAB

Inventor： Shahin Razaei

IPC: H04R1/10

CPC classification number: H04R1/1083 ,  H04R1/1008 ,  H04R1/1075 ,  H04R2460/01 ,  H04R2460/11

Abstract: The invention relates to an active noise-cancelling audio headphones having two circum-aural earpieces, comprising a partition designed to face an ear; said partition incorporating at least one vent passing through said partition so as to generate intentional leaks having a length greater than 1.5 mm and a width selected in such a way that there are either



a ratio between said length and said width is less than or equal to 8:1 if a median section is greater than 1.7 mm2; or
a ratio between said length and said width is less than or equal to 4:1 if said median section is less than 1.7 mm2.

公开(公告)号：US10932026B2

公开(公告)日：2021-02-23

申请号：US16307575

申请日：2017-06-13

Applicant: FOCAL JMLAB

Inventor： Ludovic Uhring-Cadart ,  Clement Auzou ,  Arnaud Cazes Bouchet

IPC: H04R9/04 ,  H04R1/10 ,  H04R7/12 ,  H04R5/033 ,  H04R7/20

Abstract: The invention relates to a broadband electrodynamic transducer for headphones, said transducer comprising: —a magnetic motor designed to generate a magnetic field; —a coil that is disposed in the air gap of the magnetic motor and can move translationally under the effect of the magnetic field; and —a membrane that is connected to the coil in such a way as to convert the translational movement of the coil into an acoustic wave; —the transducer comprising a self-supporting coil that is glued to the membrane, the membrane having a Young's modulus of more than 40 GPa.

公开(公告)号：US20180124519A1

公开(公告)日：2018-05-03

申请号：US15565782

申请日：2016-04-12

Applicant: FOCAL JMLAB

Inventor： Giuliano NICOLETTI

IPC: H04R7/18 ,  H04R31/00 ,  H04R7/26

CPC classification number: H04R7/18 ,  H04R7/26 ,  H04R31/003 ,  H04R2307/201 ,  H04R2307/207 ,  H04R2400/11

Abstract: The invention relates to a suspension device for a loudspeaker, comprising an annular outer edge that is able to fasten the suspension device to a frame, an annular inner edge that is able to fasten the suspension device to a membrane, a suspension hoop that extends annularly between the edges, said suspension hoop being able to absorb movement stresses produced at the inner edge by means of a deformation that thus forms a resonance mode, the suspension hoop comprising at least one annular protuberance that is positioned so as to minimize the at least one resonance mode of the suspension hoop, the mass of the at least one annular protuberance being between 150% and 400% the mass of a part of the suspension hoop on which the at least one annular protuberance is positioned.

公开(公告)号：USD788069S1

公开(公告)日：2017-05-30

申请号：US29557603

申请日：2016-03-10

Applicant: FOCAL JMLAB

Designer： Alain Pineau