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. 02, 2022
Filed:
May. 01, 2018
Sony Corporation, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
Provided is a sound output apparatus that is used by being worn in the vicinity of the ear of a listener and is capable of outputting sound over a wide frequency band. The sound output apparatus includes: a first sound generation unit configured to generate a low frequency band; a sound guiding unit with a hollow structure, having one end coupled to the first sound generation unit, and the other end as a sound emission unit including an open end; and a second sound generation unit that is disposed at a place closer to the sound emission unit than the first sound generation unit and generates a high frequency band. It is preferable that the sound guiding unit have a joint unit that takes in the sound from the second sound generation unit and a section from the joint unit to the sound emission unit have a low impedance.