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Method for implementing reusing audio connector interface and terminal device

An audio connector and terminal equipment technology, applied in the direction of logic circuit connection/interface arrangement, connection, two-component connection device, etc., can solve the problems of increased maintenance difficulty, reduced maintainability, software complexity, etc. Restricted, unaffected appearance, cleverly conceived effects

Inactive Publication Date: 2015-06-03
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The cost of conversion in this way is relatively high. If it is based on the compatibility of electrical characteristics, it needs to make special modifications to standard interfaces such as USB; or through protocol conversion to realize virtual serial port communication, but this will complicate the software and increase the difficulty of maintenance. At the same time, because the serial port function depends on the normal operation of the USB interface itself, the scenarios where the serial port can work are limited and the maintainability is reduced.

Method used

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  • Method for implementing reusing audio connector interface and terminal device
  • Method for implementing reusing audio connector interface and terminal device
  • Method for implementing reusing audio connector interface and terminal device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0063] In this embodiment, a communication serial port is provided based on an audio connector, which can realize infrared signal receiving (or sending) and serial port functions.

[0064] In order to enable the serial port of the terminal electronic equipment to support transistor logic (TTL, Transistor-Transistor Logic) or low-voltage transistor-transistor logic (LVTTL, Low Voltage Transistor-Transistor Logic) level signals, a 4-core signal line is used, correspondingly, at the terminal A four-core audio connector jack is arranged on the internal circuit board of the electronic device.

[0065] refer to figure 1 , the embodiment of the present invention provides an implementation method for providing a serial port based on an audio connector, including:

[0066] S01, set a four-core audio connector jack in the terminal equipment, the jack has four terminals, and connect the infrared interface and serial port on the terminal service control module (such as SoC, System on Chi...

Embodiment 2

[0110] In this embodiment, a communication serial port is provided based on an audio connector interface to realize multiplexing of audio output and serial ports.

[0111] In the embodiment of the present invention, for the terminal electronic equipment used for audio output by the audio connector, the communication serial port is provided through the multiplexing of the audio connector interface signal, and at the same time, the automatic identification of the peripheral interface type is supported based on the logic circuit unit, or, based on the user Active identification of the peripheral interface type is realized by configuration or selection.

[0112] Assuming that the serial port signal is TTL or LVTTL level (using 4 signal lines), proceed as follows:

[0113] The 4-core audio connector is used to realize the transmission and multiplexing of the audio output signal and the serial port signal, that is, a 4-core audio connector jack is built in the terminal device, and t...

Embodiment 3

[0122] In this embodiment, an output serial port is provided based on an audio connector to realize unidirectional serial port output.

[0123] In the embodiment of the present invention, for the terminal electronic equipment where the audio connector is used to realize infrared input / infrared output / audio output, the output serial port is provided through the multiplexing of the connector interface signal, but only one-way signal output is provided, and signal reception is not supported. At the same time, active identification of peripheral interface types is realized based on user configuration or selection.

[0124] It is basically the same as the foregoing embodiment, except that the solution provided by this embodiment does not need to consider the received signal of the serial port. Since the terminal device does not receive the external serial port signal, but only sends it to the outside, only a 3-segment plug is needed at this time. Therefore, both serial devices and...

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PUM

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Abstract

A method for implementing audio connector interface conversion is provided in an embodiment of the present invention. The method includes installing a 4-pin jack of an audio connector inside a terminal device, and connecting the power end, signal end, and grounding end of an infrared interface on the terminal service control unit and the serial signal transmitting end, serial signal receiving end, power end, and grounding end on the terminal service control unit directly or through a logical circuit unit to the four connecting ends on the jack of the audio connector. In the technical scheme provided in an embodiment of the present invention, control and switching can be performed on the basis of the working mode, so that the electronic terminal device with an audio interface can use its audio interface to provide an infrared signal interface and a serial communication port.

Description

technical field [0001] The invention relates to the technical fields of communication and electronics, in particular to a method for realizing the conversion of an audio connector interface and a terminal device. Background technique [0002] Audio connectors, such as stereo plug-in TRS (Tip Ring Sleeve), are widely used in terminal electronic equipment, such as output interfaces for CD, VCD, DVD, MP3 and other audio playback devices, and have become the most commonly used audio interfaces. Common audio interfaces have three specifications: 2.5 mm, 3.5 mm, and 6.3 mm. In audio equipment, TIP is generally used to connect the left channel, RING is connected to the right channel, and SLEEVE is connected to the ground. Due to the small cross-section of the TRS audio connector interface, the external area occupied by the device is very small. [0003] The serial port has the advantages of simple transmission protocol and easy realization of physical and electrical characteristi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K19/0175H04B10/80
CPCH01R24/58H01R2107/00H04B10/801
Inventor 叶伯贵范云松
Owner HUAWEI DEVICE CO LTD