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Mobile terminal and earphone circuit

An earphone circuit and capacitor technology, applied in earphone/earphone accessories, earphones to reduce ambient noise, active noise cancellation hearing devices, etc. , Improve anti-static performance, improve the effect of anti-interference and distortion

Pending Publication Date: 2017-06-09
SHANGHAI GREEN ORANGE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, although the design of the earphone can meet the requirements of electrical characteristics, it is insufficient for the certification test, and the anti-static (ESD) and interference capabilities are weak

Method used

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  • Mobile terminal and earphone circuit
  • Mobile terminal and earphone circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The invention provides an earphone circuit, see figure 1 ,include:

[0035] plug module 100;

[0036] a grounding module 300, connected to the plug module 100;

[0037] a speaker module 200, connected between the plug module 100 and the ground module 300;

[0038] a microphone module 400, connected to the plug module 100;

[0039] An inductance module 410 is connected between the microphone module 400 and the plug module 100;

[0040] The microphone module 400 is also connected with a capacitor module 420 and a filter module 430 .

[0041] Optionally, the plug module 100 includes a first interface and a second interface; wherein,

[0042] The first interface is connected to the grounding module;

[0043] The second interface is connected to the microphone module.

[0044] Optionally, the speaker module 200 includes a right speaker interface and a left speaker interface; the plug module also includes a third interface and a fourth interface;

[0045] The first pi...

Embodiment 2

[0062] On the other hand, an embodiment of the present invention provides a mobile terminal, where the mobile terminal includes the earphone circuit as described in Embodiment 1.

[0063] Specifically, the mobile terminal may be a smart phone, a tablet or a notebook computer.

[0064] The beneficial effects brought by the technical solution provided by the embodiments of the present invention are:

[0065] 1) By setting the capacitor module, the anti-static performance of the earphone is improved.

[0066] 2) By setting the inductance module, better impedance characteristics can be presented at high frequencies.

[0067] 3) By setting the filter module, not only will it not have a significant impact on the effective audio frequency, but at the same time it can effectively suppress harmonics to achieve the purpose of improving anti-interference and distortion.

[0068] While ensuring the electrical characteristics of the earphones, the anti-interference performance of the ear...

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Abstract

The invention discloses a mobile terminal and an earphone circuit, and relates to the mobile terminal technology field. The earphone circuit comprises a plug module; a grounding module connected with the plug module; a loudspeaker module connected between the plug module and the grounding module; a microphone module connected with the plug module; an inductance module connected between the microphone module and the plug module; a capacitance module connected with the microphone module; and a filtering module connected with the microphone module. The mobile terminal and the earphone circuit are advantageous in that 1, the anti-static performance of the earphone is improved by arranging the capacitance module; 2, a better impedance characteristic is displayed at a high frequency by arranging the inductance module; 3, by arranging the filtering module, effective audio frequency cannot be affected obviously, and at the same time, harmonic waves are effectively inhibited, and therefore objects of improving anti-interference performance and anti-distortion performance are achieved; under a precondition of guaranteeing the electrical characteristic performance of the earphone, the anti-interference performance of the earphone is greatly improved, and a testing authentication requirement is satisfied.

Description

technical field [0001] The present invention relates to the technical field of mobile terminals, in particular to a mobile terminal and an earphone circuit. Background technique [0002] As the main accessory of mobile phone audio, the audio performance of the earphone directly affects the user experience and the life of the electro-acoustic device. Our evaluation of headphones is usually mainly based on loudness, sensitivity and distortion. [0003] Radiated Susceptibility (RS) is an important test item in EMC testing and certification. It transmits interference signals through space, and then judges its radiation susceptibility by receiving mobile phone antenna signals and earphone earpiece acoustic signals. [0004] In the prior art, although the design of the earphone can meet the electrical characteristic requirements, it is insufficient for the certification test, and the anti-static (ESD) and interference capabilities are relatively weak. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): H04R1/10H04R1/08H04R3/04
CPCH04R1/08H04R1/1083H04R3/04H04R2460/01
Inventor 王迅吴旭
Owner SHANGHAI GREEN ORANGE IND
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