Mobile device and corresponding anti-noise earphone

Abstract

The invention discloses a mobile device and a corresponding anti-noise earphone. The mobile device comprises a processing module, an external connection interface and a current monitoring unit. The external connection interface is electrically connected with the processing module, and has a first connection pin, a second connection pin and a third connection pin; and the current monitoring unit is electrically connected with the processing module and the third pin of the external connection interface, and is used for monitoring the current state of the third pin and sending the monitored current state to the processing module, so that the processing module can provide different voltage levels to the third connection pin accordingly. According to the mobile device, different earphone types can be judged according to the current states of the third pin of the external connection interface, and corresponding voltage levels can be provided thereby, so that after the anti-noise earphone is electrically connected with the mobile device, an anti-noise circuit can operate with the received voltage level provided by the mobile device being as a power source.

Description

technical field [0001] The invention belongs to the field of anti-noise earphones, and in particular relates to a mobile device capable of providing power to the anti-noise earphone and an anti-noise earphone capable of receiving the power provided by the mobile device. Background technique [0002] In recent years, mobile devices have developed rapidly, and their functions have become more and more powerful. They have gradually replaced electronic devices such as walkmans, cameras, and video game consoles. Therefore, it has become more and more common to use mobile devices to listen to songs, take pictures, and play games. However, existing earphones are still affected by external environmental sounds when listening to songs, such as passers-by talking, driving noise, etc. Therefore, the demand for anti-noise earphones arises accordingly. Anti-noise earphones usually need to use batteries to provide power to the anti-noise circuit, which increases the overall volume and wei...

AI Technical Summary

Problems solved by technology

However, the existing earphones are still affected by external environmental sounds when listening to songs, such as passers-by talking, driving noise, etc. Therefore, the demand for anti-noise earphones arises accordingly.

Anti-noise earphones usually need to use batteries to provide power to the anti-noise circuit, which increases the overall volume and weight of the anti-noise earphones, and because the power supply of the anti-noise circuit is provided by an external battery, it is easy to cause the battery to run out of power when listening to songs and thus cannot resist noise. situation, causing troubles for users

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