公开(公告)号：US20190306605A1

公开(公告)日：2019-10-03

申请号：US16307575

申请日：2017-06-13

Applicant: FOCAL JMLAB

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

IPC: H04R1/10

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：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：US11981239B2

公开(公告)日：2024-05-14

申请号：US18032498

申请日：2021-10-21

Applicant: FOCAL JMLAB

Inventor： Léo Guadagnin ,  Arnaud Cazes Bouchet

IPC: B60N2/879 ,  B60R11/02 ,  B64D11/00 ,  B60R11/00

CPC classification number: B60N2/879 ,  B60R11/0223 ,  B64D11/00154 ,  B60R2011/0017 ,  B60R2011/0043

Abstract: The invention relates to a sound-equipped headrest comprising —at least one woofer associated with an open rear part, comprising a rear grid and/or open cell or semi-open cell foam with a density of between 8 and 60 kg/m3, so that said at least one woofer is two-directional; and —at least one mid-range/tweeter, associated with a closed rear part comprising a solid wall and/or a closed cell foam so that at least one mid-range/tweeter is mono-directional.

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：US20230406185A1

公开(公告)日：2023-12-21

申请号：US18032498

申请日：2021-10-21

Applicant: FOCAL JMLAB

Inventor： Léo Guadagnin ,  Arnaud Cazes Bouchet

IPC: B60N2/879 ,  B60R11/02 ,  B64D11/00

CPC classification number: B60N2/879 ,  B60R11/0223 ,  B64D11/00154 ,  B60R2011/0017

Abstract: The invention relates to a sound-equipped headrest comprising —at least one woofer associated with an open rear part, comprising a rear grid and/or open cell or semi-open cell foam with a density of between 8 and 60 kg/m3, so that said at least one woofer is two-directional; and —at least one mid-range/tweeter, associated with a closed rear part comprising a solid wall and/or a closed cell foam so that at least one mid-range/tweeter is mono-directional.