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Control method and circuit for output power of earphone

A technology of output power and control circuit, applied in transducer circuits, stereo circuit arrangements, electrical components, etc., can solve problems such as poor user experience, and achieve the effect of improving user experience

Inactive Publication Date: 2017-03-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above problems, the present invention provides a method and circuit for controlling the output power of earphones, which can automatically identify the impedance value of earphones to output appropriate output power, and solve the problem of poor user experience caused by differences in the impedance of the earphone itself

Method used

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  • Control method and circuit for output power of earphone
  • Control method and circuit for output power of earphone
  • Control method and circuit for output power of earphone

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Embodiment Construction

[0060] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0061] Such as figure 1 As shown, the present invention discloses a control method of earphone output power, comprising the following steps:

[0062] Step 100: Obtain the impedance value of the current earphone inserted into the earphone jack of the terminal;

[0063] Step 200: Obtain the output power corresponding to the current earphone impedance value from a preset earphone impedance value and output power correspondence table;...

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Abstract

The invention provides a control method and circuit for output power of an earphone and relates to the field of an electronic device. The method comprises the steps of acquiring an impedance value of the current earphone inserted into an earphone jack of a terminal; acquiring the output power corresponding to the impedance value of the current earphone from a preset table of correspondence between the impedance value of the earphone and the output power; and outputting the power. Through application of the method, the volume of the earphones with different impedance values is automatically adapted and the user experience is improved.

Description

technical field [0001] The invention relates to the field of electronic devices, in particular to a method and circuit for controlling output power of earphones. Background technique [0002] At present, there are many types of earphones on the market, and there are earphones with various impedances, and they are basically equipped with 3.5mm earphone plugs. Various headphones with different impedances. [0003] However, due to the different impedance of the earphones, the output volume of the earphones is also different at the same level of volume on the terminal. When wearing earphones, the loudness heard by the user is completely different. Often earplugs and in-ear earphones with small impedance have high sensitivity, so the sound heard is very loud, while earphones with large impedance output signals at the same terminal. The volume heard under the amplitude is small. If the user starts using a 200-ohm earphone, in order to get a proper loudness, he needs to turn up ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R5/04
Inventor 孙焘
Owner ZTE CORP
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