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:
Jul. 30, 2024
Filed:
Aug. 02, 2022
Aac Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Juha Backman, Tampere, FI;
AAC Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Abstract
A loudspeaker is disclosed, including a driver diaphragm, an enclosure and an outlet. The driver diaphragm is configured to produce acoustic waves. The enclosure includes an upper wall disposed opposite to the driver diaphragm and having an inner surface facing to the driver diaphragm, and a side wall connecting the upper wall to the driver diaphragm. The outlet is defined at the upper wall or the side wall, and configured to output the acoustic waves. The driver diaphragm and the enclosure define a front volume chamber communicating with the outlet. The front volume chamber and the outlet form a front cavity. The inner surface has a protruding part located close to the outlet, a distance from a position at the protruding part to the driver diaphragm is smaller than that from a position at other parts of the inner surface to the driver diaphragm.