Switching circuit, headset socket, mobile terminal and methods

Abstract

The embodiment of the invention provides a switching circuit. The switching circuit comprises a first interrupt signal circuit and a second interrupt signal circuit. When an interrupt signal output by the first interrupt signal circuit is at a low level, and an interrupt signal output by a second interrupt signal circuit is at a high level, the switching circuit enters a switch-on state. When the interrupt signal output by the first interrupt signal circuit is at the high level, or the interrupt signal output by the second interrupt signal circuit is at the low level, the switching circuit enters a switch-off state. The embodiment of the invention also provides a headset socket, a mobile terminal, a method for detecting switch-on / off of the switching circuit, a method for detecting whether a headset is plugged into the headset socket or not, and a method for controlling an audio output manner of the mobile terminal. Through adoption of the switching circuit, the headset socket, the mobile terminal and the methods, the switch-on / off condition of the switching circuit and whether a headset plug is plugged into the headset socket or not can be reflected accurately.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communication, and in particular, to a switch circuit, an earphone socket, a mobile terminal and a method. Background technique [0002] The current mobile terminals basically have a headphone jack (3.5mm headphone jack). When a headphone is plugged in, the terminal system will automatically recognize the headphone insertion and switch the internal audio path to the headphone mode for output. This identification is achieved through the interrupt signal generated by the normally open or normally closed switch inside the headphone socket before and after the earphone is inserted. [0003] Such as figure 1 and 2 As shown in FIG. 1 and 2 , they are respectively a schematic diagram of a state in which the switch of the normally open earphone socket is off and a schematic diagram in the state of the switch in the prior art. figure 1 and figure 2 Among them, the first terminal S01 ...

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a switch circuit to solve the problem that the switch cannot be accurately reflected on and off in the prior art

[0007] An embodiment of the present invention provides an earphone jack to solve the problem in the prior art that it cannot accurately reflect whether the earphone plug is inserted into the earphone jack

[0008] An embodiment of the present invention provides a mobile terminal to solve the problem in the prior art that it is impossible to accurately reflect whether an earphone plug is inserted into the earphone socket of the mobile terminal

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