Earphone socket and mobile terminal thereof

A technology for earphone sockets and mobile terminals, which is applied in the direction of 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 extending the standby time

Active Publication Date: 2012-12-19
山东摄云信息技术有限公司
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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
  • Earphone socket and mobile terminal thereof

Examples

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Embodiment Construction

[0023] 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.

[0024] 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 an accessory 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, the third pin 3, and the fourth pin 4 and fifth pin 5.

[0025] The first pin 1 is grounded, the second pin 2 is connected to the right channel control unit 120 of the mobile terminal, the third pin is con...

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Abstract

The invention discloses an earphone socket and a mobile terminal thereof. The earphone socket comprises a first pin, a second pin, a third pin, a fourth pin and a fifth pin, wherein the first pin is connected with the ground, the second pin is connected with an earphone right-channel control unit, the third pin is connected with an earphone left-channel control unit, the fourth pin is connected with a microphone control unit, and the fifth pin is connected with an interruption signal control unit; the fifth pin is connected with a power supply through a first resistor; and the interruption signal control unit is used for conducting the fifth pin and the second pin when at a high level and generating an interruption signal when at a low level to disconnect the fifth pin and the second pin.When an earphone is not inserted, the fifth pin and the second pin are conducted; and when the earphone is inserted, the interruption signal control unit is jumped into the low level, so that the fifth pin and a right channel are disconnected, a direct-current component added on the right channel is removed at the moment, an electricity leakage condition can not be caused when the earphone is inserted, and the sound quality of the earphone is not influenced.

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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Patent Type & Authority Patents(China)
IPC IPC(8): H01R13/02H01R13/66H01R13/71
Inventor 王亚辉
Owner 山东摄云信息技术有限公司
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