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An interface positive and negative identification circuit, method, device and system

A technology for identifying circuits and identification methods, which is applied in the electronic field, can solve the problems of high manufacturing cost and poor compatibility, achieve the effects of strong versatility and compatibility, and reduce manufacturing costs

Active Publication Date: 2022-03-15
SHENZHEN MINIEYE INNOVATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a circuit, method, device and system for identifying positive and negative connections of an interface, which solves the problems of high manufacturing cost and poor compatibility of slave devices including Type-C interfaces

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  • An interface positive and negative identification circuit, method, device and system
  • An interface positive and negative identification circuit, method, device and system
  • An interface positive and negative identification circuit, method, device and system

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Embodiment Construction

[0033] 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 only some, not all, embodiments of the present invention. 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.

[0034]Hereinafter, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or mor...

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Abstract

The invention discloses a positive and negative connection identification circuit, method, equipment and system of an interface, and relates to the field of electronic technology. The specific solution includes: a first interface module, an identification module and a determination module, the first interface module includes the first CC end of the first Type-C interface; the first CC end is used to connect the second CC end of the second Type-C interface , the input terminal of the identification module is connected to the first CC terminal and connected to the second CC terminal, the output terminal of the identification module is connected to the determination module, and the second Type-C interface is included in the second interface module included in the first electronic device ; After the first CC terminal is connected to the second CC terminal, input the first level signal to the input terminal of the identification module; after the identification module processes the first level signal, output the second level signal through the output terminal of the identification module; determine The module determines whether the first CC terminal and the second CC terminal are forwardly connected or reversely connected according to the second level signal. The invention has strong compatibility and low cost.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a circuit, method, device and system for identifying positive and negative connections of an interface. Background technique [0002] The Type-C interface can be applied to devices such as mobile phones, tablet computers, laptops, and vehicle-mounted terminals. Any two devices (one of the two devices is a master device and the other is a slave device) can be forwardly connected or connected through the Type-C interface. reverse connection. [0003] When two devices are connected through the Type-C interface, the slave device can judge whether the connection direction of the Type-C interface of the master device and the Type-C interface of the slave device is forward or reverse through the identification chip installed on itself. However, the slave device uses the identification chip to identify the positive and negative connections of the Type-C interface, which will lead to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/66
CPCG01R31/66
Inventor 聂晓楠谭开荣刘国清杨广王启程钱航胡帅
Owner SHENZHEN MINIEYE INNOVATION TECH CO LTD