Dual-interface earphone circuit and its control method

Abstract

This invention discloses a dual-interface headset circuit and a control method thereof. The dual-interface headset circuit comprises a headset circuit module, a dual-interface audio plug, a function unit and a function switching module. The headset circuit module comprises a microphone chip, a wire controller and an earplug. The dual-interface audio plug comprises a first audio interface and a second audio interface; the first audio interface comprises a first signal line, a second signal line, a third signal line and a first ground wire; the second audio interface comprises a fourth signal line, a fifth signal line, a sixth signal line and a second ground wire. The function switching module is used for detecting external connection states of the first audio interface and the second audio interface, and is used for controlling the conduction of a loop between the headset circuit module and the first audio interface and a loop between the headset circuit module and the second audio interface. Through the control of the function switching module, the dual-interface headset circuit can select and use a plurality of functions, and can switch among a plurality of interfaces.

Description

technical field [0001] The invention relates to the technical field of audio devices, in particular to a dual-interface earphone circuit and a control method thereof. Background technique [0002] Currently, various portable mobile electronic devices are widely popular in the market, such as music players, walkmans, mobile phones, and tablet computers. On various mobile or fixed electronic devices, USB interfaces and audio jacks have become standard configurations of the electronic devices. Peripheral electronic devices with USB interfaces are widely used, such as flash disks, etc., and the most widely used peripheral devices based on audio interfaces are headsets. The peripheral electronic equipment with USB interface and the peripheral equipment based on audio interface are used in a huge amount, but so far, the peripheral electronic equipment with USB interface and the peripheral equipment based on audio interface all exist independently, so users need to simultaneously ...

AI Technical Summary

Problems solved by technology

Moreover, there is only one audio interface (i.e. audio plug) in the existing headset, the interface is single, the integration level is low, and it cannot be compatible with the interfaces of various electronic equipment, so it has to be equipped with a communication line with a standard interface in addition, which not only increases the electronic equipment. Peripheral cost, and bring a lot of inconvenience to the user during use

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