Method for locking mobile phone earphone audio output sound volume

A technology of audio output and volume, applied in the direction of telephone communication, advanced technology, electrical components, etc., can solve the problems of uncertain voltage, external electronic equipment cannot work normally, and the output process cannot be stable, etc., and achieve an easy-to-achieve effect

Inactive Publication Date: 2015-02-11
青岛智感信息技术有限公司
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Problems solved by technology

However, because the user often adjusts the volume button, or the user can also adjust the volume during the output process, so with the volume adjustment, the initial output voltage is uncertain or cannot be stable during the output process, that is, the output voltage cannot be locked. device not working properly

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  • Method for locking mobile phone earphone audio output sound volume

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Embodiment Construction

[0007] A method for locking the audio output volume of the earphone of a mobile phone, the mobile phone includes a software for adjusting the audio output, the software includes a volume setting module and a volume monitoring module, and during initial work, the volume setting module sets the volume target value of the mobile phone , and store this target value as a target value variable, and output a regular sine wave to the headphone jack at the same time. After the regular sine wave reaches the receiving device, it is rectified and filtered by the rectifier and filter circuit to obtain a stable DC voltage; , the volume monitoring module real-time monitors the volume, the output sine wave pattern, frequency and amplitude, and compares the real-time volume value with the stored target value variable, when the volume is changed, the volume monitoring module then This operation is prohibited, and the volume is automatically adjusted to the target value to ensure the stability of...

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Abstract

The invention provides a method for locking the mobile phone earphone audio output sound volume. A mobile phone comprises software for regulating the audio output, wherein the software comprises a sound volume setting module and a sound volume monitoring module, the sound volume setting module is used for setting the mobile phone sound volume target value, in addition, the target value is stored into a target value variable, meanwhile, the regular sine wave form is output to an earphone jack, the sound volume monitoring module monitors the sound volume and the style, the frequency and the amplitude value of the output sine wave form in real time, in addition, the real-time sound volume value and the stored target variable are compared, when the sound volume is changed, the sound volume monitoring module forbids the operation, and in addition, the sound volume is automatically regulated to the target value. The method has the advantages that the output voltage stability is maintained through locking the earphone audio output, the voltage can be used as the power supply for external low-power-consumption electronic equipment after the rectification filtering, in addition, the realization is easy, the plug and play effect is achieved, and the application universality is realized.

Description

technical field [0001] The invention relates to the technical field of mobile phone detection, in particular to a method for locking the audio output volume of a mobile phone earphone. Background technique [0002] Mobile phones are very popular in daily life and have many functions. They are not limited to making and receiving calls. Especially, smart phones are equipped with operating systems, and people can implement certain functions on the mobile phone through software programming. In addition to the regular output audio signal, the earphone audio output can also output a regular waveform (such as a sine wave) through software programming, and obtain a DC voltage through rectification and filtering, which can be used as a power supply for external low-power electronic devices. However, because the user often adjusts the volume button, or the user can also adjust the volume during the output process, so with the volume adjustment, the initial output voltage is uncertain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/725
CPCY02D30/70
Inventor 赵培军杨长强
Owner 青岛智感信息技术有限公司
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