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Microphone circuit and earphone with noise reduction function

A microphone and circuit technology, which is applied in earpiece/earphone accessories, earphones to reduce environmental noise, electrical components, etc., can solve problems such as being susceptible to external interference, and the other party can’t hear clearly the content of the conversation, and achieve the effect of maintaining a stable total current

Pending Publication Date: 2018-06-29
ZILLTEK TECH SHANGHAI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional line-controlled headset is worn on the human ear and the microphone and the mouth are placed in a parallel position. Since the microphone is omnidirectional, there are the following problems in the actual application process: In a noisy environment, the noisy background The sound is also captured; it is susceptible to external interference, such as the sound of clothes rubbing, wind and other noises, making it difficult for the other party to hear the content of the conversation during the conversation with the other party

Method used

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  • Microphone circuit and earphone with noise reduction function
  • Microphone circuit and earphone with noise reduction function
  • Microphone circuit and earphone with noise reduction function

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0034] A microphone circuit 1 applied to a wire-controlled earphone, including:

[0035] A microphone branch ci...

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Abstract

The invention discloses a microphone circuit and an earphone with a noise reduction function. The microphone circuit comprises: a microphone branch, connected to a microphone transducer which is connected to an input voltage terminal and a ground terminal; a fixed current branch, connected in parallel to the microphone branch, comprising a digital signal processor which is connected to a signal output end of the microphone transducer; and a power manager, connected to the input voltage terminal and the digital signal processor, further comprising a current monitoring module for compensating the total current of the fixed current branch to be stable. The microphone circuit has the advantages: output signals of the microphone transducer are processed by adopting the digital signal processor,and the signals within a set band range are strengthened to suppress the signals of other bands, thereby realizing the noise reduction function; and the power manager reduces the input voltage for providing constant current for the digital signal processor, and is provided with the current monitoring module for compensating the current difference in real time to keep the total current stable.

Description

technical field [0001] The invention relates to the technical field of microelectromechanical devices, in particular to a microphone circuit and an earphone with a noise reduction function. Background technique [0002] Wire headset (Wire headset) refers to the headset that can control the access device on the headset line, such as controlling the switch function, play and stop function, volume adjustment function, etc. of the access device. [0003] The traditional line-controlled headset is worn on the human ear and the microphone and the mouth are placed in a parallel position. Since the microphone is omnidirectional, there are the following problems in the actual application process: In a noisy environment, the noisy background The sound is also captured; it is vulnerable to external interference, such as the sound of clothes rubbing, wind and other noises, making it difficult for the other party to hear the content of the conversation during the conversation with the ot...

Claims

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Application Information

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IPC IPC(8): H04R1/10
CPCH04R1/1083H04R2201/10
Inventor 叶菁华
Owner ZILLTEK TECH SHANGHAI
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