Title:
SOUND COLLECTION METHOD, MICROPHONE AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/071960
Kind Code:
A1
Abstract:
Provided in the present application is a sound collection method for a microphone. A microphone comprises a laser self-mixing apparatus and a vibrating diaphragm apparatus, wherein the vibrating diaphragm apparatus comprises a diaphragm, which is used for vibrating in response to a sound; and the laser self-mixing apparatus and the vibrating diaphragm apparatus are respectively used for detecting the vibration of the diaphragm. The method comprises: acquiring a first voltage signal by means of a laser self-mixing apparatus, and also acquiring a second voltage signal by means of a vibrating diaphragm apparatus; if the first voltage signal is lower than or equal to a preset threshold value, converting the first voltage signal into an audio signal; and if the first voltage signal is higher than the preset threshold value, converting the second voltage signal into an audio signal. By means of the method of the present application, audio signals can be collected in two different ways, two paths of signals are then switched by means of a preset threshold value, and a better matching signal is selected and converted into an audio signal, such that the quality of the audio signal can be ensured. The present application further relates to a microphone and an electronic device.
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Inventors:
RUAN SHENGJIE (CN)
TAN SIKE (CN)
HUANG LINXING (CN)
TAN SIKE (CN)
HUANG LINXING (CN)
Application Number:
PCT/CN2022/126904
Publication Date:
May 04, 2023
Filing Date:
October 24, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04R1/08; H04R19/04; H04R23/00
Foreign References:
| CN109945964A | 2019-06-28 | |||
| CN110602617A | 2019-12-20 | |||
| CN113194393A | 2021-07-30 | |||
| CN111654794A | 2020-09-11 | |||
| CN101808264A | 2010-08-18 | |||
| US20160007108A1 | 2016-01-07 | |||
| US20160219374A1 | 2016-07-28 | |||
| CN202111276854A | 2021-10-29 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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