An earphone interface device and a control method based on the earphone interface device

Abstract

The invention relates to a headphone interface device and a control method thereof, which belongs to the technical field of portable equipment. The headphone interface device comprises a headphone interface module for acquiring a signal when connected with main equipment; a power signal separation module for separating the acquired signal to obtain a voltage power supply signal and a digital signal; a logic control module including an MCU (Micro Controller Unit) for resolving a digital signal obtained by a modem to an instruction control signal so as to control external equipment. The main equipment is connected with the external equipment through the headphone interface module, and transmits a signal to the headphone interface module; the headphone interface module inputs the received signal to the power signal separation module; the power signal separation module is used for converting the signal to an electric signal and a digital signal, wherein the electric signal is used for providing power to each device through transformation; the digital signal is transmitted to the logic control module; the logic control module is used for resolving the digital signal to the instruction to control the external equipment.

Description

technical field [0001] The present invention relates to the technical field of portable equipment, in particular to an earphone interface device and a control method based on the earphone interface device. Background technique [0002] At present, the user's requirement for future portable devices is to enjoy more functions, including games, audio, and video. Furthermore, they hope that portable devices can connect more peripherals to achieve other functions, and hope that these functions able to be integrated. [0003] However, due to the size and portability of the portable device, the number and types of interfaces of the portable device are limited. There are generally two ways for portable devices to connect to external devices: [0004] One is through wireless, such as wifi, bluetooth, infrared, but wireless connection modules require several different voltage rails, and in addition to certain types of batteries, these modules may also have multiple input power sourc...

AI Technical Summary

Problems solved by technology

The circuit structure of these voltage rails is relatively complex, and generally needs to include the main system bus, microprocessor or DSP core voltage, and RF power supply, which makes the entire circuit control complex and further shortens the battery life of portable devices.

[0005] The second is through a wired form, such as a USB interface, etc. When using the USB as the interface, the portable device is used as the host, but in the circuit design of the external device, the circuit is added to the basic USB peripheral, thereby increasing the circuit of the external device. complexity, and because the USB interface specifications of various manufacturers are not the same, different portable devices require special USB interface cables

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