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:
Sep. 03, 2024
Filed:
Apr. 29, 2022
Applicant:
Yamaha Corporation, Hamamatsu, JP;
Inventors:
Shinichi Kato, Hamamatsu, JP;
Yoshifumi Oizumi, Hamamatsu, JP;
Assignee:
Yamaha Corporation, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/28 (2006.01); H04R 1/02 (2006.01); H04R 1/32 (2006.01);
U.S. Cl.
CPC ...
H04R 1/2826 (2013.01); H04R 1/025 (2013.01); H04R 1/026 (2013.01); H04R 1/288 (2013.01); H04R 1/323 (2013.01); H04R 2201/021 (2013.01);
Abstract
A sound emitting apparatus includes a speaker unit and an enclosure of the speaker unit having an aperture configuring a Helmholtz resonator. A resonance frequency Fr of the Helmholtz resonator is set to be equal to or higher than a reproducible lower limit frequency of the speaker unit.