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:
Oct. 29, 2019
Filed:
Feb. 22, 2018
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Abstract
A speaker device includes a first speaker unit, a first cabinet that houses the first speaker unit, and an annular portion defining a sound path that guides sound radiated from the first speaker unit to outside the first cabinet, the annular portion being positioned on a sound radiation side of the first speaker unit and arranged so as to sound a diaphragm in the first speaker unit. The speaker device also includes a second cabinet arranged inside the annular portion and spaced apart from the sound path, the sound path being annular, and a second speaker unit that radiates sound in a direction in which the first speaker unit radiates sound and that is stored in the second cabinet. The speaker device further includes a resonant portion having an aperture communicating with the sound path and defining a resonant space.