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Mobile terminal and USB interface mode control method and device thereof

A technology of USB interface and state control, which can be used in measurement devices, instruments, electrical and digital data processing, etc., and can solve problems such as short circuit of USB interface.

Active Publication Date: 2015-09-30
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a mobile terminal and its USB interface state control method and device, aiming to solve the problem of water or other corrosive substances entering the pin of the USB interface of the mobile terminal in the prior art when it is in the power-on state. Short-circuit defect of USB interface

Method used

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  • Mobile terminal and USB interface mode control method and device thereof
  • Mobile terminal and USB interface mode control method and device thereof

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Embodiment Construction

[0029] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. 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.

[0030] In order to illustrate the technical solution of the present invention, specific embodiments are used for description below.

[0031] An embodiment of the present invention provides a method for controlling the USB interface state of a mobile terminal, such as figure 1 As shown, the USB interface status control method includes the following steps:

[0032] Step S101. Determine whether a control signal for turning on the identification switch is received, if not, then execute step S102, if yes, execute step S103.

[0033] In this step, specifically, when an external device is connected, a s...

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Abstract

The invention relates to the technical field of mobile terminals, and provides a mobile terminal, and a USB interface mode control method and device thereof. The mode control method comprises the following steps: judging whether an identifying switch switching on control signal is received or not; if the identifying switch switching on control signal is not received, keeping the identification pin of a USB interface in a non-electrified state; if the identifying switch switching on control signal is received, actuating the operation of electrifying the identification pin of the USB interface, and judging whether the identification pin inputs low electric potential or not; if the identification pin inputs low electric potential, actuating the operation of indentifying the access of OTB equipment and communication with the OTB equipment; if the identification pin inputs no low electric potential, controlling the electrifying state of the data pin of the USB interface according to the state of the power supply pin of the USB interface, and setting the state of the USB interface of the mobile terminal to ensure that the identification pin and the data pin of the USB interface are in non-electrified states. An interface power supply is shut off to reduce the corrosion degree of the USB interface, so that short circuit phenomena caused by highly corrosion on the pins of the USB interface are reduced.

Description

Technical field [0001] The present invention relates to the technical field of mobile terminals, in particular to a mobile terminal and a method and device for controlling the state of a USB interface thereof. Background technique [0002] The USB interface is an indispensable component of the mobile phone device. With the use of the mobile phone and the use environment factors, the USB interface will easily enter water or other corrosive substances. Because the pins of the USB interface are in the power-on state, it is easy Causes a short circuit of the USB interface, affecting the normal use of the phone's functions. To sum up, there is a defect in the prior art that water or other corrosive substances enter the pins of the USB interface of the mobile terminal when the pins of the USB interface are in a power-on state, which causes the USB interface to short-circuit. Summary of the invention [0003] The purpose of the present invention is to provide a mobile terminal and its U...

Claims

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Application Information

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IPC IPC(8): G06F1/26G06F13/40
Inventor 李路路
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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