Silicon-based microphone device and electronic equipment
A microphone, silicon-based technology, used in electrical components, electrostatic sensors, semiconductor electrostatic transducers, etc., can solve problems such as unsatisfactory noise processing and affecting audio signal quality, to improve quality, improve pickup accuracy, reduce effect of probability or intensity
Active Publication Date: 2022-03-18
GMEMS TECH SHENZHEN LTD
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Problems solved by technology
[0003] In view of the shortcomings of the existing methods, the present application proposes a silicon-based microphone device and electronic equipment to solve the technical problems in the prior art that the existing microphone does not handle noise ideally and affects the quality of the output audio signal
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[0043] The present application is described in detail below, and examples of embodiments of the present application are shown in the drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Also, detailed descriptions of known technologies will be omitted if they are not necessary to illustrate the features of the present application. The embodiments described below by referring to the figures are exemplary only for explaining the present application, and are not construed as limiting the present application.
[0044] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be ...
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The embodiment of the invention provides a silicon-based microphone device and electronic equipment. The silicon-based microphone device comprises a circuit board which is provided with at least two sound inlet holes; the shielding cover covers one side of the circuit board to form a sound cavity; the at least two differential silicon-based microphone chips are arranged on one side of the circuit board and located in the sound cavity; the back cavities of the differential silicon-based microphone chips are communicated with the sound inlet holes in a one-to-one correspondence manner; and the separator is located in the sound cavity and separates the sound cavity into sub-sound cavities corresponding to at least part of the back cavities of the adjacent differential silicon-based microphone chips. According to the embodiment of the invention, the pickup structure of the at least two differential silicon-based microphone chips is adopted, so that noise reduction can be realized, and the quality of the output audio signal is improved; the isolation piece in the sound cavity can effectively reduce the interference of sound waves on other differential type silicon-based microphone chips, the pickup precision of each differential type microphone chip is effectively improved, and the quality of audio signals output by the silicon-based microphone device is further improved.
Description
technical field [0001] The present application relates to the technical field of acoustic-electric conversion, and in particular, the present application relates to a silicon-based microphone device and electronic equipment. Background technique [0002] When an existing pickup microphone acquires a sound signal, the silicon-based microphone chip in the microphone vibrates under the action of the acquired sound wave, and the vibration brings about a capacitance change that can form an electrical signal, thereby converting the sound wave into an electrical signal for output. However, the processing of noise by the existing microphone is not ideal, which affects the quality of the output audio signal. Contents of the invention [0003] Aiming at the shortcomings of the existing methods, the present application proposes a silicon-based microphone device and electronic equipment to solve the technical problem in the prior art that the noise processing of the existing microphon...
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IPC IPC(8): H04R19/04H04R19/00
CPCH04R19/04H04R19/005H04R1/326
Inventor 王云龙吴广华蓝星烁
Owner GMEMS TECH SHENZHEN LTD