CN104254027A - A method and system for using earphones compatible with round hole interface and USB interface - Google Patents

Abstract

The invention discloses a method for using an earphone compatible with a round hole interface and a USB interface, which is based on a mobile terminal with the round hole interface and the USB interface and comprises the following steps: detecting whether the USB interface has an insertion event; if yes, judging whether the event is a USB wire insertion event or an earphone wire insertion event; if the event is a USB line insertion event, starting a USB task; if the earphone wire is inserted into the event, the audio channel of the earphone is opened, so that the audio signal is output from the USB interface. The invention realizes the purpose that the round hole interface and the USB interface output audio signals simultaneously, enables the USB earphone and the round hole earphone to be used simultaneously, is convenient for two earphones to enjoy music playing, radio, video playing and the like simultaneously, and reduces the defect supported by only one earphone interface.

Description

A method and system for using earphones compatible with round hole interface and USB interface

technical field

  The invention relates to a method and system for using an earphone compatible with a round hole interface and a USB interface, in particular, the earphone with the round hole interface and the earphone with the USB interface can be plugged and connected at the same time on mobile terminals such as mobile phones and tablet computers .

Background technique

    With the development of science and technology, the functions of most mobile terminals such as mobile phones are becoming more and more abundant and powerful, and earphones have become an indispensable external device for most mobile terminal products such as mobile phones. The sound quality of mobile phones is getting better and better, and the current large-screen smart phones can also conveniently watch TV, movies and other videos. In order not to affect others, the user usually plugs in earphones on the mobile terminal to listen to the sound. At present, the earphone jacks on most mobile phones are all round hole interfaces. Although these mobile phones have USB interfaces, the USB interfaces cannot become earphone channels, even if the earphones with corresponding interfaces are plugged in, the transmission of sound cannot be carried out. Earphone jacks on a small number of mobile terminals are USB interfaces, and this type of mobile phone no longer has a round hole interface, so that the earphones of the round hole interface cannot be plugged into this type of mobile phone. A mobile terminal with only one earphone interface has certain limitations in use.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method and system for using earphones compatible with the round hole interface and the USB interface, so that the USB earphone and the round hole earphone can be used on mobile terminals such as mobile phones and tablet computers at the same time.

In order to solve the above-mentioned technical problems, the present invention provides a method for using an earphone compatible with a round hole interface and a USB interface, comprising the following steps:

A method for using an earphone compatible with a round hole interface and a USB interface, the method is based on a mobile terminal with a round hole interface and a USB interface, comprising the following steps:

Detect whether there is an insertion event on the USB interface;

If so, determine whether it is a USB cable insertion event or a headphone cable insertion event;

If it is a USB line insertion event, then start the USB task; if it is an earphone line insertion event, then open the earphone audio channel so that the audio signal is output from the USB interface. the

When an earphone insertion event is detected at the USB interface, it is judged whether an earphone has been inserted into the round hole interface; if so, the audio signal is output side by side from the round hole interface and the USB interface; if not, the audio signal is only output from the USB interface.

After the earphone insertion event of the USB interface is detected, the earphone insertion event of the round hole interface is detected, and the audio signal is output from the round hole interface and the USB interface in parallel.

The present invention also provides an earphone use system compatible with the round hole interface and the USB interface, including a detection unit for detecting whether there is an earphone insertion event at the round hole interface and the USB interface;

A judging unit for judging whether a USB cable or an earphone cable is inserted into the USB interface;

The control unit is used for controlling the output of the audio signal.

The present invention realizes the function of simultaneously using the round-hole earphone and the USB earphone on the same mobile terminal, improves usability, can facilitate two people to enjoy the music playing, radio, video playing, etc. of the mobile device at the same time, and reduces the need for only one earphone Drawbacks of interface support.

Description of drawings

Accompanying drawing 1 is the schematic flow chart of inventive method;

Accompanying drawing 2 is the functional block diagram of the system of the present invention.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings.

The present invention discloses a headphone use system compatible with a round hole interface and a USB interface. As shown in Figure 2, the system includes a detection unit for detecting whether there is an earphone insertion event at the round hole interface and the USB interface; the judging unit uses It is used to judge whether a USB cable or an earphone cable is inserted into the USB interface; the control unit is used to control the opening and closing of the audio channel, and control the output of the audio signal. The headphone line of the round hole interface and the headphone line of the USB interface adopt a parallel circuit. The headphone line of the round hole interface has four signal lines: HPOUTR, HPOUTL, HP_DET_INT and HP_MIC, and the headphone line of the USB interface also has four signal lines: HPOUTR, HPOUTL, HP_DET_INT13, and H_MIC_P Signal lines, connect their right channel signal line in parallel with the right channel signal line, connect the left channel signal line in parallel with the left channel signal line, connect HP_DET_INT in parallel with HP_DET_INT13, connect HP_MIC in parallel with H_MIC_P, and whether to add isolation to the parallel signal line Specific line interference can be set flexibly. HPOUTR is the right channel signal line of the earphone, HPOUTL is the left channel signal line of the earphone, HP_DET_INT HP_DET_INT13 is the earphone interrupt signal line, HP_MIC H_MIC_P is the earphone mic signal line.

As shown in accompanying drawing 1, the earphone usage method of the present invention compatible round hole interface and USB interface comprises the following steps:

Step S1, detecting whether there is an insertion event at the USB interface, that is, detecting whether the USB interface is plugged in with a cable, and if it is detected, an insertion event is generated in the system.

Step S2, if there is an insertion event, it is determined whether it is a USB cable insertion event or an earphone cable insertion event, that is, it is determined whether a USB data cable or an earphone cable is inserted into the USB interface.

Step S3, if it is a USB cable insertion event, start the USB task to perform regular data connection or charging. If the earphone cable is plugged in, the audio channel of the earphone is turned on so that the audio signal is output from the USB interface. the

Step S4, when an earphone insertion event is detected at the USB interface, it is determined whether an earphone has been inserted into the round hole interface; if yes, the audio signal is output from the round hole interface and the USB interface in parallel; if not, the audio signal is only output from the USB interface. That is, if an earphone is already inserted into the round hole interface, and then the earphone is inserted into the USB interface, in this case, the effect of listening to two earphones at the same time is realized. If a data cable is inserted into the USB, the audio signal is only output from the round hole interface.

Step S5 , after detecting the earphone insertion event at the USB interface, and detecting the earphone insertion event at the round hole interface, the audio signal is output in parallel from the round hole interface and the USB interface. That is, if the USB earphone is inserted first, and then the round-hole earphone is inserted, the audio signal is simultaneously output to the round-hole interface and the USB interface in parallel. If the data cable is first inserted into the USB interface, the audio signal is only output from the round hole interface.

Claims (4)

1. A method for using an earphone compatible with a round hole interface and a USB interface, the method is based on a mobile terminal with a round hole interface and a USB interface, comprising the following steps: Detect whether there is an insertion event on the USB interface; If so, determine whether it is a USB cable insertion event or a headphone cable insertion event; If it is a USB line insertion event, then start the USB task; if it is an earphone line insertion event, then open the earphone audio channel so that the audio signal is output from the USB interface. 2. The method for using an earphone compatible with a round hole interface and a USB interface according to claim 1, wherein when an earphone insertion event is detected at the USB interface, it is judged whether the earphone has been inserted into the round hole interface; If yes, the audio signal is output from the round hole interface and the USB interface in parallel; if not, the audio signal is only output from the USB interface. 3. The method for using earphones compatible with the round hole interface and the USB interface according to claim 1, characterized in that, after the USB interface has an earphone insertion event, it is detected that the round hole interface has an earphone insertion event, and the audio signal is transmitted from the round hole to the earphone. Hole interface and USB interface parallel output. 4. A headphone use system compatible with a round hole interface and a USB interface, characterized in that it includes: a detection unit for detecting whether there is an earphone insertion event at the round hole interface and the USB interface; The judging unit is used to judge whether a USB cable or an earphone cable is inserted into the USB interface; The control unit is used for controlling the output of the audio signal.