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USB (universal serial bus) interface, input equipment and electronic equipment

A universal serial bus, USB interface technology, applied in the field of input equipment and electronic equipment, USB interface, can solve the problems of electronic equipment crash, wrong input signal and so on

Inactive Publication Date: 2016-12-07
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the signal of the keyboard / mouse is interfered, it is easy to cause the electronic device connected to the keyboard / mouse to get a wrong input signal, and even cause the electronic device to crash

Method used

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  • USB (universal serial bus) interface, input equipment and electronic equipment
  • USB (universal serial bus) interface, input equipment and electronic equipment
  • USB (universal serial bus) interface, input equipment and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This embodiment provides a USB interface, which can be set on electronic devices such as smart phones, tablet computers, and ultrabooks, and can also be set on input devices such as wired keyboards / mouses and wireless keyboards / mouses. Of course, it can also be set in other devices that need to filter out interference signals in USB data signals, which is not specifically limited in this embodiment of the present invention.

[0022] figure 1 It is a schematic structural diagram of the USB interface in Embodiment 1 of the present invention, see figure 1 As shown, the USB interface 10 includes: a first USB chip 11, including at least a first data pin; a first filter circuit 12, including a first input terminal and a first output terminal, and the first input terminal and the first data pin connected, the first output end can be connected with another USB interface;

[0023] Wherein, when the USB interface 10 is physically connected with another USB interface, the first ...

Embodiment 2

[0033] Based on the same inventive concept and on the basis of the foregoing embodiments, this embodiment provides an input device, which may be a wired keyboard / mouse, wireless keyboard / mouse, etc., and the input device is connected to an electronic device through a USB interface. Certainly, the input device may also be other devices, which are not specifically limited in the present invention.

[0034] Figure 7 It is a schematic structural diagram of the input device in Embodiment 2 of the present invention, see Figure 7 As shown, the input device 70 includes: the USB interface 10 described in the first embodiment above; an input device 71 electrically connected to the USB interface 10;

[0035] Wherein, when the USB interface 10 is connected to the USB interface of an electronic device, the input device 71 transmits the input signal to the first filter circuit through the first data pin; the first filter circuit filters the input signal, and the filtered input The signa...

Embodiment 3

[0041] Based on the same inventive concept and on the basis of the foregoing embodiments, this embodiment provides an electronic device, and the electronic device may be a smart phone, a tablet computer, an ultrabook, and the like. The electronic device is connected to an input device through a USB interface. At this time, the input device is a wired keyboard / mouse or a wireless keyboard / mouse in the prior art, and does not have the first filtering circuit described in the above embodiment. Of course, the above-mentioned electronic device and input device may also be other devices, which are not specifically limited in the present invention.

[0042] Figure 9 It is a schematic structural diagram of the electronic device in Embodiment 3 of the present invention, see Figure 9 As shown, the electronic device 90 includes: a processor 91; a second USB chip 92 connected to the processor 91, the second USB chip 92 includes a second data pin; a second filter circuit 93 includes a s...

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PUM

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Abstract

The embodiment of the invention discloses a USB (universal serial bus) interface, which comprises a first USB chip and a first filtering circuit, wherein the first USB chip at least comprises a first data pin; the first filtering circuit comprises a first input end and a first output end; the first input end is connected with the first data pin; the first output end can be connected with the other USB interface; when the USB interface is physically connected with the other USB interface, the first USB chip transmits a data signal to the first filtering circuit through the first data pin and the first input end; the first filtering circuit performs filtering on the data signal, and transmits the filtered data signal to the other USB interface through the first output end. The embodiment of the invention also discloses input equipment and electronic equipment.

Description

technical field [0001] The invention relates to the technical field of Universal Serial Bus (USB, Universal Serial Bus), in particular to a USB interface, an input device and an electronic device. Background technique [0002] With the continuous development of science and technology, electronic technology has also developed rapidly, and there are more and more types of electronic products, and people have also enjoyed various conveniences brought by the development of science and technology. Now people can enjoy the comfortable life brought by the development of science and technology through various types of mobile terminals. [0003] At present, whether it is a wired keyboard / mouse or a wireless keyboard / mouse, it will be interfered by the outside world during use, and the frequency range of these interference signals is from 20MHz to 500MHz. When the signal of the keyboard / mouse is interfered, it is easy to cause the electronic device connected to the keyboard / mouse to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40H03H7/01
CPCH03H7/0138G06F13/4068G06F2213/0042
Inventor 王军周平角
Owner LENOVO (BEIJING) LTD
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