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USB (universal serial bus) interface mode switching device and intelligent terminal

A universal serial bus, intelligent terminal technology, applied in the computer field to achieve the effect of convenient operation

Active Publication Date: 2015-09-23
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem in the prior art that a USB interface can only work in one of the display mode and the computer mode, the embodiment of the present invention provides a universal serial bus interface mode switching device and an intelligent terminal

Method used

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  • USB (universal serial bus) interface mode switching device and intelligent terminal
  • USB (universal serial bus) interface mode switching device and intelligent terminal
  • USB (universal serial bus) interface mode switching device and intelligent terminal

Examples

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Embodiment 1

[0031] An embodiment of the present invention provides a USB interface mode switching device, which is applied to an intelligent terminal, see figure 1 , the smart terminal includes a chipset 11 , an external USB interface 12 and at least one internal USB device 13 , and the chipset 11 is provided with a USB interface 14 .

[0032] The device comprises: a switching circuit 101, a USB hub 102 and a control module 103, the switching circuit 101 includes two input terminals 111 and two output terminals 112, the two input terminals 111 are respectively connected to the two USB interfaces 14 of the chipset 11, and the two output terminals 112 Respectively connect the external USB interface 12 and the USB hub 102, the USB hub 102 is connected to at least one internal USB device 13, and the control module 103 is connected to the control terminal of the switching circuit 101;

[0033] The control module 103 is used to detect the high-definition multimedia interface signal or the smart...

Embodiment 2

[0036] An embodiment of the present invention provides a USB interface mode switching device, which is applied to an intelligent terminal, see figure 2 , the smart terminal includes a chipset 21 , an external USB interface 22 and at least one internal USB device 23 , and the chipset 21 is provided with a USB interface 24 .

[0037]The device comprises: a switch circuit 201, a USB hub 202 and a control module 203, the switch circuit 201 includes two input terminals 211 and two output terminals 212, the two input terminals 211 are respectively connected to the two USB interfaces 24 of the chipset 21, and the two output terminals 212 Respectively connect the external USB interface 22 and the USB hub 202, the USB hub 202 is connected to at least one internal USB device 23, and the control module 203 is connected to the control terminal of the switching circuit 201;

[0038] The control module 203 is used to detect the high-definition multimedia interface signal or the smart termi...

Embodiment 3

[0048] An embodiment of the present invention provides an intelligent terminal, see image 3 The smart terminal includes a chipset 301, an external USB interface 302 and at least one internal USB device 303, and the chipset 301 is provided with a USB interface 311; the terminal also includes a USB interface mode switching device 304 as described in Embodiment 1 or 2.

[0049] Further, the terminal further includes a display panel 305 and a scaler 306 , and the scaler 306 is used to adjust the high-definition multimedia interface signal image to a resolution suitable for display on the display panel 305 . That is, the display panel 305 is connected to the chipset 301 through the scaler 306 .

[0050] Preferably, the control module is a scaler 306 . Because when a high-definition multimedia interface signal needs to be transmitted to the display panel 305 , it will pass through the scaler 306 .

[0051] In the embodiment of the present invention, the two input terminals of the...

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Abstract

The invention discloses a USB (universal serial bus) interface mode switching device and an intelligent terminal, and belongs to the field of the computer. The USB interface mode switching device is applied to the intelligent terminal. The intelligent terminal comprises a chip set, an external USB interface and an internal USB unit. The USB interface mode switching device comprises a switching circuit, a USB concentrator and a control module. The switching circuit comprises two input terminals and two output terminals, the two input terminals are respectively connected with two USB interfaces of the chip set, the two output terminals are respectively connected with the external USB interface and the USB concentrator, and the USB concentrator is connected with at least one internal USB unit. The control module is used for detecting fine-definition multimedia interface signals or intelligent terminal modes, and controls the switching circuit to connect the chip set with the external USB interface and the USB concentrator according to the detection result, or connects the external USB interface with the USB concentrator.

Description

technical field [0001] The invention relates to the field of computers, in particular to a universal serial bus interface mode switching device and an intelligent terminal. Background technique [0002] With the gradual integration of TVs and computers, smart TVs and computer all-in-ones have developed rapidly. [0003] The main structure of a smart TV and an all-in-one computer is similar. Taking an all-in-one computer as an example, it mainly includes two parts: a host and a monitor. When in monitor mode, it can be connected to other hosts. [0004] In monitor mode, the all-in-one computer receives video signals sent by other hosts through the High Definition Multimedia Interface (HDMI for short), while the Universal Serial Bus ("HDMI" for short) in the all-in-one computer USB") devices, such as touch devices, cameras, etc., are connected to other hosts through the USB interface. The USB interface is called the controlled USB interface. It is easy to know that in addit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
Inventor 代龙辉
Owner LENOVO (BEIJING) CO LTD
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