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Anti-jamming method and device for keys

An anti-interference and button technology, applied in the electronic field, can solve problems such as button interference, achieve the effect of eliminating logic errors, solving abnormal use, and improving user experience

Active Publication Date: 2017-11-24
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the embodiments of the present invention is to provide an anti-jamming method and device for keys, which solves the problem of frequent interference of keys in the prior art

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  • Anti-jamming method and device for keys

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Embodiment Construction

[0040] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0041] Each will be described in detail below.

[0042] The terms "first", "second", "third" and "fourth" in the description and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "include" and "have", as well as any variatio...

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Abstract

The embodiment of the invention discloses an anti-interference method and device for a key. The method can comprise the steps of: detecting target time when a GPIO (General Purpose Input / Output) interface of terminal equipment is in a low-level state, and connecting a physical key of the terminal equipment with a CPU (Central Processing Unit) of the terminal equipment by the GPIO interface, wherein when the physical key is not pressed down, the GPIO interface is in a high-level state, and when the physical key is pressed down, the GPIO interface is in the low-level state; and when the target time exceeds a preset time threshold, pulling up the level of the GPIO interface so as to enable the GPIO interface to be in the high-level state in a designated time period. By adopting the anti-interference method and device disclosed by the invention, the problem that in the prior art, the physical key cannot be normally used possibly due to interference can be prevented, and user experience is promoted.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an anti-jamming method and device for keys. Background technique [0002] The general purpose input / output (General Purpose Input Output, GPIO) interface is a general programmable I / O port, which can also be understood as an electronic component for input / output. The microcontroller or chipset does not have enough I / O ports, or provide additional control and monitoring functions when the system needs to use remote serial communication or control. For example, in embedded systems, it is often necessary to control many external devices or circuits with simple structures. Some of these devices need to be controlled by the CPU, and some require the CPU to provide input signals, and many devices or circuits only require two types of on / off. Therefore, the corresponding control functions can be provided through the GPIO interface, such as LED on and off, output high and low levels...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/30G06F11/34
CPCG06F11/3041G06F11/3055G06F11/3485
Inventor 裴健学
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD