The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 2023
Filed:
May. 02, 2022
Applicant:
Alps Alpine Co., Ltd, Tokyo, JP;
Inventors:
Assignee:
Alps Alpine Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 9/06 (2006.01); H04R 9/02 (2006.01); G01R 33/07 (2006.01); H04R 1/28 (2006.01); H04R 9/04 (2006.01); H04R 29/00 (2006.01); H04R 3/00 (2006.01);
U.S. Cl.
CPC ...
H04R 9/027 (2013.01); G01R 33/072 (2013.01); H04R 1/2803 (2013.01); H04R 3/002 (2013.01); H04R 9/025 (2013.01); H04R 9/046 (2013.01); H04R 9/06 (2013.01); H04R 29/001 (2013.01); H04R 2400/11 (2013.01);
Abstract
A vibrating unit includes a diaphragm and a bobbin, and a voice coil is secured to the bobbin. A detecting unit includes a moving magnet and a magnetic sensor. An annular magnet support is secured to a front edge of the bobbin, and the moving magnet is positioned and secured to the magnet support. The magnetic sensor is secured to a drive supporting unit. The moving magnet is secured to the bobbin, with the magnet support therebetween. This facilitates mounting and positioning of the moving magnet.