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A USB control method and electronic device

A technology of electronic equipment and control method, applied in the field of communication, can solve problems such as transmission interruption, and achieve the effect of avoiding transmission interruption and reducing the risk of burnout

Active Publication Date: 2022-08-02
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a USB control method and electronic equipment to solve the problem that the data transmission mode of the USB interface of the electronic equipment in the prior art is interrupted due to ESD discharge

Method used

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  • A USB control method and electronic device
  • A USB control method and electronic device
  • A USB control method and electronic device

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Embodiment Construction

[0022] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] An embodiment of the present invention provides a USB control method, which is applied to an electronic device. The electronic device may include: a USB interface and a metal casing disposed around the USB interface; the USB interface is standard on the electronic device for charging and data transmission. That is, data exchange between electronic devices and external devices (such as U disk, mobile phone, computer, etc.) can be realized through the USB interface.

[0024] See figure 1 , which shows a schematic flowchart of a USB control method provided by an embodiment of the present invention. The USB control method provided by the embodiment of the present invention may include the following steps:

[0025] Step 101 , in t...

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PUM

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Abstract

A USB control method and electronic device. The present invention provides a control method of an electronic device and an electronic device, wherein the electronic device includes: a USB interface and a metal casing arranged around the USB interface; the control method of the electronic device includes: when it is detected that the electronic device is connected to an external device through the USB interface In the case of the device, determine the port type and port transmission information of the external device; if the port type is the target port type and the port transmission information meets the preset conditions, the control metal shell is grounded. The invention can avoid transmission interruption of the USB interface due to ESD discharge in the data transmission mode, and reduce the risk of the USB interface being burned out due to the grounding of the metal casing.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular, to a USB control method and an electronic device. Background technique [0002] A USB (Universal Serial Bus, Universal Serial Bus) interface is currently a standard interface used for charging and data transmission on electronic devices. Taking a mobile phone as an example, in order to ensure that the data transmission function can still work normally in the environment of external electric field or magnetic field, without transmission interruption or data error, in the EU market CE EMC certification, it is required that the data transmission status between the mobile phone and the computer, Perform 8kv ESD (Electro-Static Discharge, electrostatic discharge) discharge on the USB interface of the mobile phone, and the data transmission will not be interrupted. The current USB interface design cannot meet the 8kv discharge requirement, and the transmission will be ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/42H05K9/00
CPCG06F13/4282H05K9/0067G06F2213/0042
Inventor 刘彦彬
Owner VIVO MOBILE COMM CO LTD
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