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:
Aug. 07, 2018
Filed:
Jun. 16, 2016
Applicant:
Yamaha Corporation, Hamamatsu-shi, Shizuoka-ken, JP;
Inventors:
Assignee:
Yamaha Corporation, Hamamatsu-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 9/08 (2006.01); H04R 1/28 (2006.01); G10K 11/04 (2006.01);
U.S. Cl.
CPC ...
H04R 1/2857 (2013.01); G10K 11/04 (2013.01); H04R 1/2873 (2013.01); H04R 1/2811 (2013.01); H04R 1/2888 (2013.01);
Abstract
An acoustic structure defining a cavity in which a sound wave propagates, wherein a first portion of the cavity substantially corresponding to a position of a node or an antinode of a standing wave generated in the cavity has an area different from an area of a second portion of the cavity except the first portion, the area being on a plane orthogonal to a direction of propagation of the sound wave.