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:
Sep. 19, 2023
Filed:
May. 26, 2022
Merry Electronics(shenzhen) Co., Ltd., ShenZhen, CN;
Merry Electronics(Shenzhen) Co., Ltd., ShenZhen, CN;
Abstract
An in-ear earphone, including a casing, a speaker, and an attenuation guide, is provided. The casing includes a sound outlet and a first through hole. An inside of the casing has a first accommodating space. The speaker is disposed in the first accommodating space. The casing defines a front cavity and a rear cavity by the speaker. The attenuation guide is formed in the casing and includes at least a first attenuation channel and a second attenuation channel. The first attenuation channel has a first inlet and a first outlet. The first inlet is connected to the first through hole. The second attenuation channel has a second inlet and a second outlet. The second inlet, the first outlet, and the rear cavity are acoustically connected, and the second outlet is connected to the front cavity.