公开(公告)号：US20240147141A1

公开(公告)日：2024-05-02

申请号：US18405375

申请日：2024-01-05

申请人： Yamaha Corporation

发明人： Yuu TSUCHIHASHI

IPC分类号： H04R1/28 ,  H04R1/10 ,  H04R7/12

CPC分类号： H04R1/2811 ,  H04R7/127 ,  H04R1/1008

摘要： A speaker unit includes a diaphragm and a plate. The diaphragm is supported on a frame The plate includes an outer peripheral portion. The outer peripheral portion is supported on the frame. The plate defines a space surrounded by the outer peripheral portion between the plate and the diaphragm and having an opening at a center of the plate. A distance between an edge of the opening and the outer peripheral portion is in a range of 8 mm to 42 mm.

公开(公告)号：US20230007385A1

公开(公告)日：2023-01-05

申请号：US17943473

申请日：2022-09-13

申请人： YAMAHA CORPORATION

发明人： Yuu TSUCHIHASHI

IPC分类号： H04R1/10 ,  H04R1/28 ,  H04R1/22

摘要： A headphone includes: a housing including a first aperture; a first driver unit disposed in the housing; a partition wall dividing an internal space of the housing into a first space and a second space, the first space communicating with an external space through the first aperture and containing the first driver unit; and a second driver unit attached to the partition wall.

公开(公告)号：US20230007383A1

公开(公告)日：2023-01-05

申请号：US17939363

申请日：2022-09-07

申请人： YAMAHA CORPORATION

发明人： Yuu TSUCHIHASHI ,  Yoshikazu HONJI ,  Masao NORO

IPC分类号： H04R1/10 ,  H04R3/04

摘要： A headphone includes: a housing; a first driver unit disposed in the housing; a partition wall dividing an internal space of the housing into a first space and a second space, the first space containing the first driver unit; a second driver unit attached to the partition wall; and an acoustic adjustment circuit configured to receive a first signal to be input to the first driver unit and generate a second signal to be input to the second driver unit based on the first signal.