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:
Nov. 01, 2022
Filed:
May. 31, 2019
Goertek Inc., Weifang, CN;
Xinglong Wang, Weifang, CN;
Zhilei Han, Weifang, CN;
GOERTEK INC., Weifang, CN;
Abstract
Disclosed is a terminal apparatus, including a protective shell and a sounding device installed in the protective shell, where the sounding device includes a vibration system and a magnetic circuit system; where the vibration system includes a vibration diaphragm including a first surface and a second surface facing away from the first surface; the magnetic circuit system is located on a side of the second surface of the vibration diaphragm; the sounding device defines a first sounding hole at a position in communication with a space on a side of the first surface, and a second sounding hole at a position in communication with a space on the side of the second surface; and the protective shell defines a first terminal sounding hole in communication with the first sounding hole, and a second terminal sounding hole in communication with the second sounding hole.