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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
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[0004] In the prior art, although the design of the earphone can meet the requirements of electrical characteristi
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[0033] Example 1
[0034] The present invention provides an earphone circuit, see figure 1 ,include:
[0035] plug module 100;
[0036] The grounding module 300 is connected to the plug module 100;
[0037] The speaker module 200 is connected between the plug module 100 and the grounding 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 further 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 further includes a third interface a...
Example Embodiment
[0061] 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 described in the first embodiment.
[0063] Specifically, the mobile terminal may be a smart phone, a tablet or a notebook computer.
[0064] The beneficial effects brought by the technical solutions provided in the embodiments of the present invention are:
[0065] 1) By setting the capacitor module, the antistatic 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, it will not only have no obvious impact on the effective audio frequency, but also can effectively suppress the harmonics to achieve the purpose of improving anti-interference and distortion.
[0068] Under the guarantee of the electrical characteristics and performance of the headset, the anti-int...
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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 ...
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Application Information
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