Crosstalk reducing method for mobile terminal, and mobile terminal

A mobile terminal, crosstalk technology, applied in the field of communication, can solve the problem of reducing, unable to obtain clear and accurate stereo sound, etc.

Inactive Publication Date: 2017-08-18
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Embodiments of the present invention provide a method for reducing crosstalk in a mobile terminal and a mobile terminal to so...

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  • Crosstalk reducing method for mobile terminal, and mobile terminal
  • Crosstalk reducing method for mobile terminal, and mobile terminal
  • Crosstalk reducing method for mobile terminal, and mobile terminal

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] see figure 1 , figure 1 It is a schematic diagram of the application environment of the method for reducing the crosstalk of the mobile terminal provided by the embodiment of the present invention. Such as figure 1 As shown, the mobile terminal includes an audio output module 11 . The audio output module 11 includes a power amplifier PAg and a common resistor Rg. One end of the common resistance Rg is connected with the power amplifier PAg, and t...

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Abstract

The invention discloses a method for reducing the crosstalk of a mobile terminal and the mobile terminal, which relate to the communication field and solve the problem of unclear stereo sound caused by the crosstalk. The mobile terminal is provided with an audio output module, one end of the common resistance of the audio output module is respectively connected to the N channel modules, and the other end of the common resistance is connected to the power amplifier, and the method for reducing the crosstalk of the mobile terminal includes: obtaining the impedance value of the common resistance and the impedance value of the load of N channel modules; according to the impedance value of the common resistance and the impedance value of the load of N channel modules, calculate the crosstalk adjustment parameter of the power amplifier; control the power amplifier to the common resistance according to the crosstalk adjustment parameter Outputting a compensation signal, the compensation signal is used to reduce the voltage of the common connection point between the common resistance and the N channel modules, so as to reduce the crosstalk between the N channel modules. In this way, the method for reducing crosstalk in a mobile terminal provided by the embodiment of the present invention can reduce crosstalk interference and obtain clear stereo sound.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for reducing crosstalk in a mobile terminal and the mobile terminal. Background technique [0002] Currently, most mobile terminals play stereo sound sources through stereo equipment. Among them, the audio output structure of stereo equipment has two forms: differential signal and single-ended signal. The crosstalk effect of the differential signal output structure is generally smaller than that of the single-ended signal output structure, but the complexity of the differential signal output structure is higher. Twice the complexity of the terminal signal output structure. Therefore, most audio output structures on the market use single-ended signal output structures. There is a common ground resistance in the single-ended signal output structure. When playing a stereo sound source, the common ground resistance causes crosstalk between multiple channels, and the crosstalk wil...

Claims

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Application Information

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IPC IPC(8): H04R5/04
CPCH04R5/04H04R2205/026
Inventor 黄业伟
Owner VIVO MOBILE COMM CO LTD
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