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:
May. 10, 2022
Filed:
Mar. 05, 2020
Applicant:
Yamaha Corporation, Hamamatsu, JP;
Inventors:
Assignee:
YAMAHA CORPORATION, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/26 (2006.01); H04R 1/28 (2006.01); H04R 3/14 (2006.01);
U.S. Cl.
CPC ...
H04R 1/26 (2013.01); H04R 1/2876 (2013.01); H04R 3/14 (2013.01);
Abstract
Provided is an acoustic device with which it is possible to make reproduced sound able to be heard across a wide frequency range, from the front and from the rear. This acoustic device is provided with a flat speakerconfigured to emit sound, from a front and a rear thereof, in a low frequency sound range. Also, provided therein are a first speakerF configured to emit sound, in a direction facing the front of the flat speaker, in a mid-to-high frequency sound range, and a second speakerR configured to emit sound, in a direction facing the rear of the flat speaker, in the mid-to-high frequency sound range.