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:
May. 21, 2019
Filed:
Dec. 24, 2015
Goertek Inc., WeiFang, CN;
Mingjie Zhong, WeiFang, CN;
Xinxiang Huo, WeiFang, CN;
GOERTEK INC., Weifang, CN;
Abstract
Provided is a speaker module, comprising a sound passage of a front cavity, wherein the sound passage is defined by a speaker unit, a housing and a sound hole provided on the housing, wherein the speaker module further comprises a sealed cavity and a communication hole, wherein the sealed cavity is provided on a side wall of the sound passage of the front cavity, and the sealed cavity is in communication with the sound passage of the front cavity via the communication hole. By means of the present invention, an SPL peak at Fh and harmonic distortion caused by front cavity resonance can be reduced, so that the acoustic performance of a speaker is enhanced, and the sound quality is improved.