CN217159868U - Multifunctional video expansion device - Google Patents
Multifunctional video expansion device Download PDFInfo
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- CN217159868U CN217159868U CN202220167128.7U CN202220167128U CN217159868U CN 217159868 U CN217159868 U CN 217159868U CN 202220167128 U CN202220167128 U CN 202220167128U CN 217159868 U CN217159868 U CN 217159868U
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Abstract
The utility model provides a multi-functional video extension device, including the connection interface, with the line concentration controller and the video converter that are connected the interface electricity, the USB2.0 shunt of being connected with line concentration controller, video converter electricity respectively, the first USB interface and a plurality of second USB interface of being connected with the line concentration controller electricity to and the video interface of being connected with the video converter electricity. The first USB interface is also electrically connected with a USB2.0 shunt, the second USB interface and the first USB interface are both USB3.0 interfaces, two pairs of USB3.0 super-speed differential signals in the second USB interface are electrically connected with the hub controller, and one pair of USB2.0 signals in the second USB interface is electrically connected with the USB2.0 shunt. The video converter is used for expanding the video interface, the USB2.0 shunt is used for expanding a plurality of groups of USB2.0, and the hub controller is used for electrically connecting two pairs of USB3.0 super-speed differential signals so as to realize that the first USB interface and the second USB interface are both USB3.0 interfaces, improve the transmission rate of each USB interface and facilitate the use of a user.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of the technique of expander and specifically relates to a multi-functional video extension device is related to.
[ background of the invention ]
As is known, an expander is a peripheral device of a notebook computer, and by connecting a port of the notebook computer, the notebook computer can be connected to a plurality of accessories or external devices in a one-stop manner, for example, a power adapter interface, a network port, a USB interface, etc. can be expanded through the expander. However, at present, the transmission speed of the USB interface of the existing video extender is slow, and the existing video extender cannot meet the requirements of users.
Accordingly, the prior art is in need of improvement and development.
[ Utility model ] content
An object of the utility model is to provide a multi-functional video extension device for solve the slower problem of transmission speed of current video extender USB interface.
The technical scheme of the utility model as follows: a multifunctional video extension apparatus, comprising: the system comprises a connection interface used for connecting a computer, a line concentration controller and a video converter electrically connected with the connection interface, a USB2.0 shunt electrically connected with the line concentration controller and the video converter respectively, a first USB interface and a plurality of second USB interfaces electrically connected with the line concentration controller, and a video interface electrically connected with the video converter;
the first USB interface is also electrically connected with a USB2.0 shunt, the second USB interface and the first USB interface are both USB3.0 interfaces, two pairs of USB3.0 ultra-high-speed differential signals in the second USB interface are electrically connected with the hub controller, and one pair of USB2.0 signals in the second USB interface is electrically connected with the USB2.0 shunt; the video converter is used for converting data output by the connecting interface into video signals and transmitting the video signals to the display through the video interface.
Furthermore, there are three second USB interfaces.
Further, the expansion device further includes: the first low-pass filter is connected between the connection interface and the line concentration controller in series and used for filtering, and the electrostatic protection circuit is respectively and electrically connected with the connection interface and the line concentration controller.
Further, the expansion device further includes: the second low-pass filter is connected between the first USB interface and the USB2.0 shunt in series and used for filtering, and the third low-pass filter is connected between the second USB interface and the line concentration controller in series and used for filtering.
Further, the expansion device further includes: and the fourth low-pass filter is connected between the video converter and the video interface in series and used for filtering.
Furthermore, the expansion device further comprises a power supply circuit, wherein the power supply circuit is respectively connected with the interface, the line concentration controller, the USB2.0 shunt, the video converter, the first USB interface and the second USB interface for electric connection.
Further, the line concentration controller is a chip of a GL3510 model, the USB2.0 shunt is a chip of an FE1.1S model, and the video converter is a chip of an RTD2172 model.
Further, the video interface is an HDM I interface.
The beneficial effects of the utility model reside in that: compared with the prior art, the utility model discloses a video converter transmits to the display through video interface after converting the data of connecting interface output to video signal, realizes video interface's extension. And a plurality of groups of USB2.0 are expanded through the USB2.0 shunt, and are respectively connected with the first USB interface and the video converter, the first USB interface is matched with the hub controller to realize the electrical connection of two pairs of USB3.0 super-speed differential signals, so that the first USB interface is the USB3.0 interface, and the USB2.0 signal of the second USB interface and the two pairs of USB3.0 super-speed differential signals are provided by the hub controller to realize the second USB interface is the USB3.0 interface. And then, realize the utility model discloses the last USB interface of extension device is the USB3.0 interface to improve the transmission rate of USB interface, the user of being convenient for uses.
[ description of the drawings ]
FIG. 1 is a schematic block diagram of the present invention;
fig. 2 is a circuit diagram of the connection interface of the present invention;
fig. 3 is a circuit diagram of the electrostatic protection circuit of the present invention;
fig. 4-6 are circuit diagrams of a first low-pass filter according to the present invention;
fig. 7-10 are circuit diagrams of the USB2.0 shunt and its peripheral circuits according to the present invention;
fig. 11-13 are circuit diagrams of the hub controller and its peripheral circuits according to the present invention;
fig. 17 is a circuit diagram of a first USB interface according to the present invention;
fig. 18 is a circuit diagram of a second low-pass filter according to the present invention;
fig. 19-21 are circuit diagrams of a second USB interface according to the present invention;
fig. 22 to 24 are circuit diagrams of a third low-pass filter according to the present invention;
fig. 25 and 26 are circuit diagrams of the video converter of the present invention;
fig. 27 is a circuit diagram of a fourth low-pass filter according to the present invention;
fig. 28 is a circuit diagram of the video interface of the present invention;
fig. 14 to 16 and fig. 29 to 31 are circuit diagrams of the power supply circuit of the present invention.
[ detailed description ] embodiments
The present invention will be further described with reference to the accompanying drawings and embodiments.
Referring to fig. 1-31, an embodiment of the present invention provides a multifunctional video extension apparatus.
The multifunctional video extension device comprises: the system comprises a connection interface 1(J1) for connecting a computer, a hub controller 7(U601) and a video converter 5(U251) which are electrically connected with the connection interface 1(J1), a USB2.0 shunt 6(U9 and U10) which is respectively electrically connected with the hub controller 7(U601) and the video converter 5(U251), a first USB interface 12(J4) and a plurality of second USB interfaces 13(J5/J2/J6) which are electrically connected with the hub controller 7(U601), and a video interface 10(J251) which is electrically connected with the video converter 5 (U251). The first USB interface 12(J4) is further electrically connected to the USB2.0 splitter 6(U9 and U10), the second USB interface 13(J5/J2/J6) and the first USB interface 12(J4) are both USB3.0 interfaces, two pairs of USB3.0 super differential signals in the second USB interface 13(J5/J2/J6) are electrically connected to the hub controller 7(U601), and one pair of USB2.0 signals in the second USB interface 13(J5/J2/J6) are electrically connected to the USB2.0 splitter 6(U9 and U10).
The utility model discloses video interface 10(J251) is used for connecting the display, and video converter 5(U251) transmits to the display through video interface 10(J251) after converting the data of connecting interface 1(J1) output to video signal, realizes the extension of video interface 10 (J251). And a plurality of sets of USB2.0 are expanded through the USB2.0 splitter 6(U9 and U10), and are respectively connected to the first USB interface 12(J4) and the video converter 5(U251), and the first USB interface 12(J4) and the hub controller 7(U601) are matched to realize two pairs of USB3.0 super-speed differential signal electrical connections, so as to realize that the first USB interface 12(J4) is the USB3.0 interface, and the USB2.0 signal and the two pairs of USB3.0 super-speed differential signals of the second USB interface 13(J5/J2/J6) are both provided by the hub controller 7(U601), so as to realize that the second USB interface 13(J5/J2/J6) is the USB3.0 interface. And then, realize the utility model discloses the last USB interface of extension device is the USB3.0 interface to improve the transmission rate of USB interface, solve the slower problem of transmission speed of current video extender USB interface, convenient to use user.
Specifically, in one embodiment, the video interface 10(J251) is an HDMI interface, and the number of the second USB interfaces 13(J5/J2/J6) is three in order to maximize the utilization of the hub controller 7 (U601).
In one embodiment, the expansion device further comprises: the first low-pass filter 4 is connected in series between the connection interface 1(J1) and the hub controller 7(U601) for filtering, and the electrostatic protection circuit 2(ESD7) is electrically connected to the connection interface 1(J1) and the hub controller 7(U601), respectively, so that the first low-pass filter 4 and the electrostatic protection circuit 2(ESD7) can improve the anti-interference performance of data transmission between the computer and the expansion device, and play a role in protection.
In one embodiment, the expansion device further comprises: a second low-pass filter 11 for filtering connected in series between the first USB interface 12(J4) and the USB2.0 splitter 6(U9 and U10), and a third low-pass filter 9 for filtering connected in series between the second USB interface 13(J5/J2/J6) and the hub controller 7 (U601). The second low-pass filter 11 and the third low-pass filter 9 can improve the anti-interference performance of data transmission between the external device and the expansion device.
In an embodiment, in order to improve the anti-interference performance of data transmission between the display screen and the expansion device, the expansion device further includes: and a fourth low-pass filter 8 connected in series between the video converter 5(U251) and the video interface 10(J251) for filtering.
In the above embodiment, the expansion device further includes a power supply circuit 3, the power supply circuit 3 is respectively connected to the interface 1(J1), the line concentration controller 7(U601), the USB2.0 splitter 6(U9 and U10), the video converter 5(U251), the first USB interface 12(J4) and the second USB interface 13(J5/J2/J6) to be electrically connected, and the power is obtained from the computer by using the connection interface 1(J1), converted by the power supply circuit 3, rectified and filtered, and then respectively supplied to the line concentration controller 7(U601), the USB2.0 splitter 6(U9 and U10), the video converter 5(U251), the first USB interface 12(J4) and the second USB interface 13(J5/J2/J6), so that the expansion device can normally operate.
In this embodiment, to improve the performance of the present invention, the hub controller 7(U601) is a chip of GL3510 model, the USB2.0 splitter 6(U9 and U10) is a chip of FE1.1S model, and the video converter 5(U251) is a chip of RTD2172 model. The connection interface is shown in fig. 2, the electrostatic protection circuit is shown in fig. 3, the circuit diagram of the first low-pass filter is shown in fig. 4-6, the circuit diagrams of the USB2.0 shunt and the peripheral circuits thereof are shown in fig. 7-10, the circuit diagrams of the hub controller and the peripheral circuits thereof are shown in fig. 11-13, the circuit diagram of the first USB interface is shown in fig. 17, and the circuit diagram of the second low-pass filter is shown in fig. 18; the circuit diagrams of the second USB interface are shown in fig. 19 to 21, the circuit diagrams of the third low-pass filter are shown in fig. 22 to 24, the circuit diagrams of the video converter are shown in fig. 25 and 26, the circuit diagram of the fourth low-pass filter is shown in fig. 27, the circuit diagram of the video interface is shown in fig. 28, and the circuit diagrams of the power supply circuit are shown in fig. 14 to 16 and fig. 29 to 31.
The above description is only for the embodiments of the present invention, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (8)
1. A multifunctional video extension apparatus, comprising: the system comprises a connection interface used for connecting a computer, a line concentration controller and a video converter electrically connected with the connection interface, a USB2.0 shunt electrically connected with the line concentration controller and the video converter respectively, a first USB interface and a plurality of second USB interfaces electrically connected with the line concentration controller, and a video interface electrically connected with the video converter;
the first USB interface is also electrically connected with a USB2.0 shunt, the second USB interface and the first USB interface are both USB3.0 interfaces, two pairs of USB3.0 ultra-high-speed differential signals in the second USB interface are electrically connected with the hub controller, and one pair of USB2.0 signals in the second USB interface is electrically connected with the USB2.0 shunt; the video converter is used for converting data output by the connecting interface into video signals and transmitting the video signals to the display through the video interface.
2. The multifunctional video extension device of claim 1, wherein there are three of the second USB interfaces.
3. The multi-function video extension device of claim 2, wherein the extension device further comprises: the first low-pass filter is connected between the connection interface and the line concentration controller in series and used for filtering, and the electrostatic protection circuit is respectively and electrically connected with the connection interface and the line concentration controller.
4. The multi-function video extension device of claim 3, wherein the extension device further comprises: the second low-pass filter is connected between the first USB interface and the USB2.0 shunt in series and used for filtering, and the third low-pass filter is connected between the second USB interface and the line concentration controller in series and used for filtering.
5. The multi-function video extension device of claim 4, wherein the extension device further comprises: and the fourth low-pass filter is connected between the video converter and the video interface in series and used for filtering.
6. The multifunctional video extension device of claim 5, further comprising a power circuit, wherein the power circuit is electrically connected to the interface, the hub controller, the USB2.0 splitter, the video converter, the first USB interface and the second USB interface respectively.
7. The multifunctional video extension device of claim 6, wherein the hub controller is a GL3510 model chip, the USB2.0 splitter is an FE1.1S model chip, and the video converter is an RTD2172 model chip.
8. The multifunctional video extension device of claim 7, wherein the video interface is an HDMI interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220167128.7U CN217159868U (en) | 2022-01-20 | 2022-01-20 | Multifunctional video expansion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220167128.7U CN217159868U (en) | 2022-01-20 | 2022-01-20 | Multifunctional video expansion device |
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| CN217159868U true CN217159868U (en) | 2022-08-09 |
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| CN202220167128.7U Active CN217159868U (en) | 2022-01-20 | 2022-01-20 | Multifunctional video expansion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115494972A (en) * | 2022-09-26 | 2022-12-20 | 深圳市湘凡科技有限公司 | KVM switcher with data inter-copying function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115494972A (en) * | 2022-09-26 | 2022-12-20 | 深圳市湘凡科技有限公司 | KVM switcher with data inter-copying function |
| CN115494972B (en) * | 2022-09-26 | 2023-12-29 | 深圳市湘凡科技有限公司 | KVM switch with data cross copy function |
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