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.