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:
Jul. 06, 2021
Filed:
Dec. 05, 2019
Aac Acoustic Technologies (Shenzhen) Co., Ltd., Shenzhen, CN;
Peng Zeng, Shenzhen, CN;
Tianjiao Wang, Shenzhen, CN;
AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD., Shenzhen, CN;
Abstract
A microphone is provided. The microphone includes a shell with an accommodating cavity, as well as a micro-electro-mechanical system chip and a control circuit chip accommodated in the accommodating cavity, where the shell is provided with a sound hole penetrating through a thickness of the shell and communicated with the accommodating cavity; the microphone further includes an electric anti-dust device at least completely covering the sound hole, the electric anti-dust device is electrically connected with the control circuit chip, and can open the sound hole when receiving a power-on signal of the control circuit chip and close the sound hole when not receiving the power-on signal of the control circuit chip, thus effectively improving a pollution problem of the microphone during such process as transportation, assembly, SMT or unused state that dust is fed most easily without affecting an acoustic performance.