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：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：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.