Invention Grant
- Patent Title: Method for removing dust in sound outlet hole of loudspeaker, and terminal device
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Application No.: US16560537Application Date: 2019-09-04
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Publication No.: US10674294B2Publication Date: 2020-06-02
- Inventor: Ling Ouyang
- Applicant: Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- Applicant Address: CN Dongguan
- Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
- Current Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
- Current Assignee Address: CN Dongguan
- Agency: Young Basile Hanlon & MacFarlane, P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1900f518
- Main IPC: H04R9/18
- IPC: H04R9/18 ; B08B7/02 ; H04R29/00 ; B08B7/00 ; B08B15/00 ; H04R3/00 ; G06F3/0484 ; H04R3/04

Abstract:
A terminal device and a method for removing dust in a sound outlet hole of a loudspeaker are provided. The method includes the following: measuring a natural frequency of the loudspeaker, generating an audio file for removing dust according to the natural frequency, and prestoring the audio file for removing dust, wherein a vibration amplitude of a vibration diaphragm of the loudspeaker is at a maximum when the vibration diaphragm is driven to vibrates by an exciting current having the natural frequency; reading the prestored audio file for removing dust; and controlling the loudspeaker to play the audio file for removing dust, to generate air flow in the sound outlet hole, wherein when the loudspeaker plays the audio file for removing dust, a wind speed of the air flow through the sound outlet hole is at a maximum.
Public/Granted literature
- US20190394591A1 Method for Removing Dust in Sound Outlet Hole of Loudspeaker, and Terminal Device Public/Granted day:2019-12-26
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