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A method for identifying an interface of an external device and a mobile terminal

A technology for identifying external devices and interfaces, which is applied in the field of communication and can solve problems such as low accuracy

Active Publication Date: 2020-02-28
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a method for identifying an interface of an external device and a mobile terminal to solve the existing problem of low accuracy when communicating via USB

Method used

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  • A method for identifying an interface of an external device and a mobile terminal
  • A method for identifying an interface of an external device and a mobile terminal
  • A method for identifying an interface of an external device and a mobile terminal

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] see figure 1 , figure 1 is a schematic flow chart of the identification method of the external device interface provided by the embodiment of the present invention, such as figure 1 shown, including the following steps:

[0029] Step 101. Determine a target voltage value from a preset voltage value set according to a preset rule, where the voltage value set includes at least one voltage value.

[0030] In this step, the voltage value set incl...

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Abstract

The invention provides an external equipment interface identification method and a mobile terminal, relates to the technical field of communication, and aims at solving the problem that the correctness is low when communication is carried out through USB. The method comprises the following steps of: determining a target voltage value from a preset voltage value set according to a preset rule, wherein the voltage value set comprises at least one voltage value; sending a preset handshake instruction to external equipment on the basis of the target voltage value; detecting whether a confirmation instruction sent by the external equipment on the basis of the handshake instruction is detected or nor; and if the confirmation instruction is received, confirming that the connection succeeds. According to the method, when the connection fails, the other voltage values in the voltage value set are continuously used for sending the handshake instruction to the external equipment so as to connect external equipment with different voltage values, so that the correctness during USB communication connection is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an identification method of an external device interface and a mobile terminal. Background technique [0002] With the development of science and technology, the use of mobile terminals is becoming more and more extensive, for example, mobile phones, tablet computers (Tablet Personal Computer), laptop computers (Laptop Computer), personal digital assistants (personaldigital assistant, PDA), mobile Internet device (Mobile Internet Device, MID) or wearable device (Wearable Device), etc. In order to make it more convenient for users to use mobile terminals, at present, mobile terminals are often connected to external devices through USB (Universal Serial Bus, Universal Serial Bus) cables, such as OTG (On-The-Go) cables, and external devices have U disks. , mobile hard disk, keyboard and mouse, digital equipment, etc. However, due to the inconsistent impedance of different c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/38
CPCG06F13/385
Inventor 李占武陈伟得刘林
Owner VIVO MOBILE COMM CO LTD