公开(公告)号：US20250071456A1

公开(公告)日：2025-02-27

申请号：US18938609

申请日：2024-11-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Minami NAKA ,  Shuji SAIKI ,  Akihisa KAWAMURA ,  Satoshi TAKAYAMA

IPC: H04R1/02

Abstract: A loudspeaker device includes: a loudspeaker unit; and a casing that defines an internal space in which the loudspeaker unit is housed. The casing includes a baffle board to which the loudspeaker unit is fixed in an orientation that exposes a diaphragm of the loudspeaker unit. The baffle board includes one or more through-holes that establish communication between an external space outside of the casing and the internal space. Sound that is emitted from the one or more through-holes has a wavelength with an inverted phase relative to sound emitted directly from the diaphragm to the external space.