Communication method based on headset jack and terminal device

An earphone jack, communication method technology, applied in the directions of earphone/earphone accessories, instruments, electrical digital data processing, etc., can solve the problems of increasing production cost, increasing design difficulty, incapable of sharing earphone jack and USB interface, etc. The number of interfaces and the effect of reducing costs

Inactive Publication Date: 2014-09-24
NUBIA TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Since the earphone jack and the USB interface cannot be shared in the prior art, if the terminal equipment needs to have the functions of both, it is necessary to set up two kinds of interfaces at the same time, which increa

Method used

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  • Communication method based on headset jack and terminal device
  • Communication method based on headset jack and terminal device
  • Communication method based on headset jack and terminal device

Examples

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[0034] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0035] See figure 1 , The first embodiment of the terminal device of the present invention is proposed. The terminal device has an earphone jack, and the earphone jack is provided with an audio pin, a microphone pin (MIC), and a ground pin (GND). The pins include the left channel pin (L) and the right channel pin (R). The terminal equipment includes a processing module, a power supply module, an audio processing module and a USB communication module.

[0036] Processing module: used to detect whether an external device is inserted into the earphone jack. If an external device is inserted, determine whether the external device is a USB device, and control the power supply module, audio processing module and USB communication module according to the judgment result.

[0037] There is a detection pin (HS-DET) in the head...

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Abstract

The invention discloses a communication method based on a headset jack and a terminal device. The communication method includes the steps that when it is detected that an external device is inserted into the headset jack, whether the external device is a USB device is judged; if the answer is yes, a power source module is used for carrying out current exchange on the USB device through a pin of a microphone in the headset jack, and a USB communication module is used for communicating with the USB device through an audio pin in the headset jack; if the answer is no, an audio processing module is used for audio data transmission with the external device through the audio pin. Accordingly, the headset jack integrates an audio interface function and a USB interface function, can take the place of a USB interface, reduces the number of interfaces, and lowers cost.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a communication method and terminal equipment based on an earphone jack. Background technique [0002] Existing terminal devices generally have earphone jacks and USB (Universal Serial Bus, universal serial bus) interfaces. Among them, the headphone jack is used as an audio interface, which can be connected with external devices such as headphones and audio equipment to transmit audio data; the USB interface can be connected with a USB device supporting the USB protocol to communicate with the USB device, including data transmission and current exchange. Current exchange means that the terminal device supplies power to the outside or the external device charges the terminal device. [0003] Since the earphone jack and the USB interface cannot be shared in the prior art, if the terminal device needs to have the functions of both, two interfaces must be provided at t...

Claims

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Application Information

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IPC IPC(8): H04R1/10G06F13/38
Inventor 罗伟
Owner NUBIA TECHNOLOGY CO LTD
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