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Earphone socket and mobile terminal thereof

A technology for earphone sockets and mobile terminals, which is applied to contact parts, electrical components, coupling devices, etc., can solve the problems of sound quality degradation, shorten the standby time of mobile devices, etc., and achieve the effect of prolonging the standby time.

Inactive Publication Date: 2015-06-10
黎凯华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this method of detecting headphone plugging and unplugging will add a DC component to the audio signal of the headphone, resulting in a decrease in sound quality, and this pull-up resistor will cause a small amount of leakage. Standby time of mobile devices

Method used

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  • Earphone socket and mobile terminal thereof
  • Earphone socket and mobile terminal thereof

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Embodiment Construction

[0016] The present invention provides an earphone socket and its mobile terminal. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] see figure 2 , which is a detection circuit diagram of the first embodiment of the present invention. The earphone jack 110 can be used as accessories for mobile terminals such as mobile phones, MP3, MP4, etc. The earphone jack 110 includes five pins, which are respectively the first pin 1, the second pin 2, and the third pin 3 , the fourth pin 4 and the fifth pin 5.

[0018] The first pin 1 is grounded, the second pin 2 is connected to the right channel control module 120 of the mobile terminal, the third pin ...

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Abstract

The invention discloses an earphone socket and a mobile terminal for the earphone socket. The earphone socket comprises a first pin, a second pin connected with the right channel control module of an earphone, a third pin connected with the left channel control module of the earphone, and a fourth pin connected with the control module of a microphone, wherein the first pin is grounded; the earphone socket further comprises a fifth pin connected with the interrupt signal control module of the mobile terminal, and the fifth pin is connected with a 3.3V supply terminal through the fifth pin and grounded through a filter capacitor; the interrupt signal control module is used for conducting the fifth pin and the second pin at the high level and generating interrupt signals at the low level so that the fifth pin and the second pin disconnect; at the moment, the direct current component added to the right channel is removed, the electric leakage condition cannot be occurred when the earphone is inserted, and the tone quality of the earphone isn't affected.

Description

technical field [0001] The invention relates to the technical field of electrical accessories, in particular to an earphone socket and a mobile terminal thereof. Background technique [0002] Currently mobile devices such as mobile phones, MP3 (Moving Picture Experts Group Audio Layer III, moving picture expert compression standard audio layer 3), MP4 use 3.5 / 2.5mm standard three-segment or four-segment headphone jacks, and the country has formulated and Start to implement the relevant standards for this headset. [0003] see figure 1 , which is the detection circuit of the traditional earphone socket, which leads the signal on the right channel of the earphone to the interrupt signal control unit, and the interrupt signal control unit is connected to the power supply through a pull-up resistor. When the earphone is not plugged in, the interrupt signal control unit keeps high Level, when the earphone is plugged in, the right channel will be conducted to the ground through ...

Claims

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Application Information

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IPC IPC(8): H01R13/10H01R13/66H01R13/70
CPCH01R13/10H01R13/66H01R13/70
Inventor 黎凯华
Owner 黎凯华
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