A kind of multifunctional noise reduction earphone and the method for controlling the opening or closing of the noise cancellation circuit

Abstract

A multifunctional noise reduction earphone and a method for controlling the opening or closing of the noise cancellation circuit of the multifunctional noise reduction earphone. The multifunctional noise reduction earphone includes a main shell forming the main body of the earphone, a front shell, and a noise cancellation circuit; a partition board is installed in the internal space S, and the internal space S is divided into an independent first space S1 And the second space S2, a conversion unit that converts the audio input signal into a sound wave signal is installed in S1; a microphone for receiving external environmental noise is installed in S2; an adjustment hole is arranged on the wall of the main housing corresponding to S2, and an adjustment hole is arranged on the adjustment hole. There is a door that can be adjusted and closed. When the door of the adjustment hole is completely closed, the noise canceling circuit is short-circuited, so that the audio input signal is directly fed to the earphone without passing through the noise canceling circuit, and the multifunctional noise canceling earphone can be charged by solar energy .

Description

technical field [0001] The invention relates to the field of audio equipment, in particular to a method for turning on or off the noise canceling circuit of the multi-functional noise-cancelling earphone suitable for the audio equipment. Background technique [0002] Audio equipment, typically earphones, has become one of the necessary accessories for portable electronic equipment, such as mobile phones, PDAs, and personal computers. Generally, the structure of the earphone includes: an earphone plug, which is used to receive electronic signals; and a speaker, which is used to convert the audio signal output by the electronic device into sound output. With the popularization of mobile communication technology, a corresponding microphone function needs to be added on the earphone, so that the user can realize the call function. [0003] At present, the noise reduction design of earphones is usually realized through feedback. Usually, the design goal is given, and a certain o...

AI Technical Summary

Problems solved by technology

However, the noise isolation design makes it difficult to cancel the external noise that needs to be received, and when the ambient noise level is small, this way of working will cause the headphone amplifier circuit in the noise cancellation circuit to consume a lot of power all the time

[0007] In addition, the functions of the existing earphones are relatively simple, and generally do not have the function of automatic charging, and must rely on an external power supply, which makes it extremely inconvenient to use.

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