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:
Jun. 14, 2016
Filed:
Dec. 11, 2012
Applicant:
Kyushu Institute of Technology, Kitakyushu-shi, JP;
Inventor:
Yasushi Sato, Kitakyushu, JP;
Assignee:
KYUSHU INSTITUTE OF TECHNOLOGY, Kitakyushu-Shi, Fukuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01); H04R 1/02 (2006.01); H04R 1/24 (2006.01); H04R 1/28 (2006.01); H04R 9/18 (2006.01); H04R 9/06 (2006.01);
U.S. Cl.
CPC ...
H04R 1/025 (2013.01); H04R 1/24 (2013.01); H04R 1/2842 (2013.01); H04R 9/066 (2013.01); H04R 9/18 (2013.01); H04R 2207/00 (2013.01); H04R 2499/11 (2013.01);
Abstract
A cabinet to which a speaker unit is attached is configured to have an enclosed space where sound waves outputted from the rear surface of the speaker unit are transmitted, a sound guide space separated from the enclosed space, and an outlet for the sound waves transmitted in the sound guide space. A diaphragm is positioned between the enclosed space and the sound guide space of the cabinet, and an actuator is attached to the diaphragm. An audio signal shared with the speaker unit is supplied to the actuator, and diaphragm vibrations are enhanced by the actuator.