CN114640879B - Wireless docking station, wireless docking station system and screen projection method of system - Google Patents
Wireless docking station, wireless docking station system and screen projection method of systemDownload PDFInfo
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- CN114640879B CN114640879BCN202210279965.3ACN202210279965ACN114640879BCN 114640879 BCN114640879 BCN 114640879BCN 202210279965 ACN202210279965 ACN 202210279965ACN 114640879 BCN114640879 BCN 114640879B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43622—Interfacing an external recording device
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
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- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Controls And Circuits For Display Device (AREA)
- Projection Apparatus (AREA)
Abstract
Description
Technical Field
The invention relates to the field of communication, in particular to a wireless docking station screen projection method, a wireless docking station screen projection device and related components.
Background
With the progress of science and technology, people seek compact structure and convenient use of electronic products when using electronic products such as computers and notebooks, which results in the reduction of the number of interfaces of the electronic products, so that a docking station is invented.
The traditional wireless screen projection mode comprises two data transmission modes of WIFI and millimeter waves, specifically, the existing docking station generally uses Wifi5 and 60G millimeter wave wireless transmission, the two data transmission modes are limited in wireless transmission bandwidth, video signals are compressed and then transmitted out through wireless transmission, the quality of the compressed video is generally only 1080P60 Hz in resolution, the transmission delay is up to more than 70mS, and the requirements of high-end players cannot be met.
Disclosure of Invention
The invention aims to provide a wireless docking station, a wireless docking station system and a screen projection method of the system, and aims to solve the problems of high transmission delay and poor quality of transmitted video of the conventional docking station.
In order to solve the technical problems, the invention aims to realize the following technical scheme: there is provided a wireless docking station, comprising:
the system comprises a power interface, a Wifi6 receiving module, a first bridging module in communication connection with the Wifi6 receiving module, a USB expansion module in communication connection with the first bridging module, and a video expansion module in communication connection with the USB expansion module;
the system comprises a Wifi6 receiving module, a first bridging module and a second bridging module, wherein the Wifi6 receiving module is used for receiving Wifi data signals output by a terminal through Wifi6 and sending the Wifi data signals to the first bridging module;
the first bridging module is used for receiving the Wifi data signal, converting the Wifi data signal into a USB data signal and sending the converted USB data signal to the USB expansion module;
the USB expansion module is used for receiving the USB data signal and sending the USB data signal to a USB external device and the video expansion module;
and the video expansion module is used for receiving the USB data signal and sending the USB data signal to external screen projection equipment.
In addition, an embodiment of the present invention further provides a wireless docking station screen projection system, which includes:
the wireless docking station, the terminal in communication connection with the Wifi6 receiving module, the USB external device in communication connection with the USB expansion module, and the external screen projection device in communication connection with the video expansion module.
In addition, an embodiment of the present invention further provides a screen projection method for a wireless docking station screen projection system, which includes:
the terminal sends a Wifi data signal to the Wifi6 receiving module;
the Wifi6 receiving module receives the Wifi data signal, performs signal conversion on the Wifi data signal, and sends the converted Wifi data signal to the first bridge module;
the first bridge module receives the Wifi data signal, converts the Wifi data signal into a USB data signal and sends the USB data signal to the USB expansion module;
the USB expansion module receives the USB data signal and sends the USB data signal to a USB external device and a video expansion module;
the USB external equipment receives and outputs the USB data signal;
the video expansion module receives the USB data signal and sends the USB data signal to the external screen projection equipment;
and the external screen projection equipment receives and outputs the USB data signal.
The embodiment of the invention discloses a wireless docking station, a wireless docking station system and a screen projection method of the system, wherein the wireless docking station comprises: the system comprises a power interface, a Wifi6 receiving module, a first bridging module in communication connection with the Wifi6 receiving module, a USB expansion module in communication connection with the first bridging module, and a video expansion module in communication connection with the USB expansion module; the system comprises a Wifi6 receiving module, a first bridge module and a second bridge module, wherein the Wifi6 receiving module is used for receiving a Wifi data signal output by a terminal through Wifi6 and sending the Wifi data signal to the first bridge module; the first bridge module is used for receiving the Wifi data signal, converting the Wifi data signal into a USB data signal and sending the converted USB data signal to the USB expansion module; the USB expansion module is used for receiving the USB data signal and sending the USB data signal to a USB external device and the video expansion module; and the video extension module is used for receiving the USB data signal and sending the USB data signal to external screen projection equipment. This docking station converts Wifi data signal into USB data signal earlier, and need not transmit after carrying out compression processing to Wifi data signal, throws the screen display resolution ratio that the expansion comes out through this kind of mode and can reach 4K60Hz, and the time delay is less than 30ms.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a wireless docking station according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a wireless docking station system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a wireless docking station system according to a second embodiment of the present invention;
fig. 4 is a flowchart illustrating a screen-shooting method of a wireless docking station system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
The first embodiment is as follows:
referring to fig. 1, fig. 1 is a schematic structural diagram of a wireless docking station according to an embodiment of the present invention;
the present embodiments provide a wireless docking station, comprising:
the system comprises a power interface, a Wifi6 receiving module, a first bridging module in communication connection with the Wifi6 receiving module, a USB expansion module in communication connection with the first bridging module, and a video expansion module in communication connection with the USB expansion module;
the system comprises a Wifi6 receiving module, a first bridge module and a second bridge module, wherein the Wifi6 receiving module is used for receiving a Wifi data signal output by a terminal through Wifi6 and sending the Wifi data signal to the first bridge module;
the first bridging module is used for receiving the Wifi data signal, converting the Wifi data signal into a USB data signal and sending the converted USB data signal to the USB expansion module;
the USB expansion module is used for receiving the USB data signal and sending the USB data signal to a USB external device and the video expansion module;
the video expansion module is used for receiving the USB data signal and sending the USB data signal to external screen projection equipment.
In this embodiment, the power interface is used for connecting with an external power source to provide a power source for the docking station; terminals include, but are not limited to, notebooks, computers; USB external devices include but are not limited to earphones, cameras and flash disks; the external screen projection device includes, but is not limited to, a display screen such as a conference screen.
In the actual use process, for example, a video picture is to be dropped on a conference screen, an external screen dropping device is connected with a video expansion module in advance, then after a wireless connection relationship is established between a terminal and a docking station, the terminal sends a Wifi data signal to the docking station, after the Wifi6 receiving module of the docking station receives the Wifi data signal, the Wifi data signal is forwarded to a first bridge module, after the first bridge module receives the Wifi data signal, the Wifi data signal is subjected to data conversion, so that the Wifi data signal is converted into a USB data signal, then the first bridge module sends the converted USB data signal to a USB expansion module, because only the conference screen is connected with the video expansion module of the docking station in this embodiment, the USB data signal is forwarded to the video expansion module by the USB expansion module, and the USB data signal is sent to the conference screen by the video expansion module, thereby realizing screen dropping on the picture of the conference screen.
The docking station realizes ultra-low delay and high video quality display based on a WiFi6 transmission technology, a Displaylink USB display card, a USB expansion technology and a video signal expansion technology, and specifically comprises the following steps: in a first aspect: the data transmission delay is lower than 30ms; in a second aspect: the maximum projection screen display resolution can reach 4K60 Hz; in a third aspect: screen expansion is supported, namely, one docking station can be connected with a plurality of screens at the same time; in a fourth aspect: support a plurality of USB external devices, a docking station can connect a plurality of the same or different USB external devices simultaneously promptly, to sum up, the docking station of this application can be applicable to different office environment, has stronger suitability and practicality.
In a specific embodiment, the USB expansion module includes a USB expansion unit and a plurality of USB interfaces, the USB expansion unit is in communication connection with the first bridge module, and the USB expansion unit is in communication connection with each of the USB interfaces;
the USB expansion unit is used for receiving the USB data signals and sending the USB data signals to the USB interfaces;
and the USB interface is used for transmitting the USB data signal to corresponding USB external equipment.
In this embodiment, the first bridge module is connected to the USB expansion unit USB 3.0; it should be noted that, the specific number and type of the USB interfaces are not limited in the present application, and according to actual market demands, the number of the USB interfaces may be changed accordingly, and meanwhile, the types of the USB interfaces also include but are not limited to USB2.0, USB3.0, and the like, in this embodiment, there are 3 USB interfaces, and the 3 USB interfaces are of the USB3.0 type, and the interfaces have a high-speed data transmission channel, which can meet the use requirements of daily keyboards, mice, USB disks, and printers, and have a 5V3A current output, thereby meeting the normal charging requirements of the mobile phone.
The docking station can utilize the USB interfaces to connect a plurality of USB external devices at the same time, and can meet the requirements of different users.
In a specific embodiment, the USB interface includes a Type-a interface, a Type-B interface, a Type-C interface, and an SD interface.
It should be understood that the present application only lists the commonly used USB interfaces such as Type-a interface, type-B interface, type-C interface, SD interface, but other types of USB interfaces can be used according to actual requirements during manufacturing, and therefore will not be described further.
In a specific embodiment, the video extension module includes a video extension unit and a plurality of video interfaces of the same or different types, the video extension unit is in communication connection with the USB extension unit, and the video extension unit is in communication connection with each of the video interfaces;
the video extension unit is used for receiving the USB data signals and transmitting each Wifi data signal to each video interface;
and the video interface is used for transmitting the USB data signal to corresponding external screen projection equipment.
In this embodiment, not prescribing a limit to specific quantity and the type of video interface, according to actual market demand, the quantity of video interface can change correspondingly, and simultaneously, the type of video interface also includes but not limited to VGA interface, HDMI interface and DP interface etc. in this embodiment, video interface sets up 2 for the docking station of this application can connect 2 display screens simultaneously, and then improves office efficiency, and the video picture on the display screen is previewed simultaneously to the user of convenient different positions.
In a specific embodiment, the video interface includes a VGA interface, an HDMI interface, and a DP interface.
It should be understood that the present application only lists commonly used video interfaces such as VGA interface, HDMI interface and DP interface, but other types of video interfaces can be used according to actual requirements during manufacturing, and therefore will not be described again.
In a specific embodiment, the wireless docking station further includes an RJ45 interface communicatively connected to the video docking unit.
It should be noted that, through such design, the RJ45 interface is the network interface, makes can also connect the extranet when using WiFi wireless transmission, realizes surfing the internet official working, even do not have wireless network (extranet) also can pass through the wired connection extranet of RJ45 interface, has further improved the suitability and the practicality of this application docking station.
What need supplement is, the docking station of this application still has automatic connection and disconnection control's function, and terminal and docking station interval distance reach apart from the threshold value after promptly, and terminal and docking station can automatic disconnection, and after the terminal reentrant apart from the threshold value within range, the terminal is automatic to be connected with docking station, compares in the loaded down with trivial details problem of current docking station line, and the docking station of this application has the high efficiency.
For the mode that prior art's docking station need carry out data compression with Wifi data signal after the retransmission, the docking station of this application need not to carry out data compression to Wifi data signal, can directly carry out lossless transmission to the video signal of 4k &60hz (4), real ultralow time delay (being less than 30 MS) transmission that reaches, and the screen display resolution ratio of throwing that expands out can reach 4K60Hz, thereby satisfy the office, the conference, the recreation, education video and data bidirectional transmission require, replace traditional wired docking station, get into the wireless DOCK of novel HDMI 2.0.
With reference to fig. 2, an embodiment of the present application further provides a wireless docking station system, which includes the above-mentioned wireless docking station, a terminal in communication connection with the Wifi6 receiving module, a USB external device in communication connection with the USB expansion module, and an external screen projection device in communication connection with the video expansion module.
In the present embodiment, the terminal includes, but is not limited to, a notebook, a computer; USB external devices include but are not limited to earphones, cameras and flash disks; the external screen projection device includes, but is not limited to, a display screen such as a conference screen.
Specifically, wifi wireless connection relation is established with docking station to the terminal, and USB external equipment and the USB interface connection that corresponds throw the screen equipment and the video interface connection that corresponds.
In an embodiment, with reference to fig. 2, the terminal is communicatively connected to the wireless docking station through a Wifi6 sending module;
in this embodiment, if the terminal supports Wifi6 data transmission, the Wifi6 data signal is directly transmitted to the Wifi6 receiving module of the docking station through the Wifi6 transmitting module.
Example two:
with reference to fig. 3, the difference between this embodiment and the first embodiment is that the terminal is communicatively connected to the wireless docking station through a TX module, where the TX module includes a second bridge module connected to the terminal USB and a wifi6 sending module communicatively connected to the second bridge module.
In this embodiment, if the terminal does not support Wifi6 data transmission, the TX module is required to establish a communication connection relationship between the terminal and the docking station, specifically, the USB3.0 is used to connect the second bridge module and the terminal in a wired manner, so that the terminal has a function of sending Wifi data signals, and the purpose of sending the Wifi data signals to the docking station can be achieved.
With reference to fig. 4, an embodiment of the present application further provides a screen projection method of a wireless docking station system, which is applied to the wireless docking station system as described above, and as shown in fig. 1, the method includes steps S101 to S107.
S101, the terminal sends a Wifi data signal to the Wifi6 receiving module;
s102, the Wifi6 receiving module receives the Wifi data signal, performs signal conversion on the Wifi data signal, and sends the converted Wifi data signal to the first bridging module;
s103, the first bridging module receives the Wifi data signal, converts the Wifi data signal into a USB data signal, and sends the USB data signal to the USB expansion module;
s104, the USB expansion module receives the USB data signal and sends the USB data signal to a USB external device and a video expansion module;
s105, the USB external equipment receives and outputs the USB data signal;
s106, the video expansion module receives the USB data signal and sends the USB data signal to the external screen projection equipment;
and S107, the external screen projection equipment receives and outputs the USB data signal.
In the actual use process, an external screen projection device is connected with a corresponding video interface in advance, and a USB external device is connected with a corresponding USB interface, then after a wireless connection relation is established between a terminal and a docking station, the terminal sends a Wifi data signal to the docking station, a Wifi6 receiving module of the docking station receives the Wifi data signal, the Wifi data signal is subjected to signal conversion, the converted Wifi data signal is forwarded to a first bridging module, the first bridging module receives the Wifi data signal and then performs data conversion on the Wifi data signal, the Wifi data signal is converted into a USB data signal, the first bridging module sends the converted USB data signal to a USB expansion unit, the USB expansion unit receives the USB data signal and sends the USB data signal to the USB external device through the USB interface, meanwhile, the USB expansion unit sends the USB data signal to a video expansion unit, and the video expansion unit sends the USB data signal to the conference screen through the video interface.
In an embodiment, the step S102 includes the following steps:
s10, the Wifi6 receiving module receives the Wifi data signals, converts the Wifi data signals into PCIe protocol interface signals, and transmits the PCIe protocol interface signals to the first bridging module through a PCIe protocol interface.
In this embodiment, the Wifi6 receiving module establishes a communication connection with the first bridge module through the PCIe protocol interface, so the Wifi data signal needs to be converted into a PCIe protocol interface signal first.
In a specific embodiment, the step S103 includes the following steps:
s20, the first bridging module receives the PCIe protocol interface signal, converts the PCIe protocol interface signal into a USB3.0 protocol signal, and transmits the USB3.0 protocol signal to the USB expansion module through a USB3.0 protocol interface.
In this embodiment, the first bridge module is in communication connection with the USB expansion unit through the USB3.0 protocol interface, so that the received PCIe protocol interface signal needs to be converted into a USB3.0 protocol signal first.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes described above may refer to the corresponding processes in the foregoing embodiments, and are not described herein again.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A wireless docking station, comprising: the system comprises a power interface, a Wifi6 receiving module, a first bridging module in communication connection with the Wifi6 receiving module, a USB expansion module in communication connection with the first bridging module, and a video expansion module in communication connection with the USB expansion module;
the system comprises a Wifi6 receiving module, a first bridging module and a second bridging module, wherein the Wifi6 receiving module is used for receiving a Wifi data signal output by a Wifi6 sending module from a terminal, converting the Wifi data signal into a PCIe protocol interface signal and transmitting the PCIe protocol interface signal to the first bridging module through a PCIe protocol interface;
the first bridging module is used for receiving the PCIe protocol interface signal, converting the PCIe protocol interface signal into a USB data signal and sending the converted USB data signal to the USB expansion module;
the USB expansion module is used for receiving the USB data signal and sending the USB data signal to a USB external device and the video expansion module;
and the video extension module is used for receiving the USB data signal and sending the USB data signal to external screen projection equipment.
2. The wireless docking station as claimed in claim 1, wherein the USB expansion module comprises a USB expansion unit and a plurality of USB interfaces, the USB expansion unit is communicatively connected to the first bridge module, and the USB expansion unit is communicatively connected to each of the USB interfaces;
the USB expansion unit is used for receiving the USB data signals and sending the USB data signals to the USB interfaces;
and the USB interface is used for transmitting the USB data signal to corresponding USB external equipment.
3. The wireless docking station as recited in claim 2 wherein the video expansion module comprises a video expansion unit and a plurality of video interfaces of the same or different types, the video expansion unit being communicatively coupled to the USB expansion unit, the video expansion unit being communicatively coupled to each of the video interfaces;
the video extension unit is used for receiving the USB data signals and transmitting each Wifi data signal to each video interface;
and the video interface is used for transmitting the USB data signal to corresponding external screen projection equipment.
4. The wireless docking station of claim 3, wherein the USB interface comprises a Type-A interface, a Type-B interface, a Type-C interface, and an SD interface;
the video interface comprises a VGA interface, an HDMI interface and a DP interface.
5. The wireless docking station of any of claims 3-4, further comprising an RJ45 interface communicatively coupled to the video docking unit.
6. A wireless docking station screen projection system, which is characterized by comprising the wireless docking station as claimed in any one of claims 1 to 5, a terminal in communication connection with the Wifi6 receiving module, a USB external device in communication connection with the USB expansion module, and an external screen projection device in communication connection with the video expansion module.
7. The wireless docking station screen projection system of claim 6, wherein the terminal is communicatively connected to the wireless docking station via a Wifi6 sending module;
or the terminal is in communication connection with the wireless docking station through a TX module, wherein the TX module comprises a second bridging module connected with the terminal USB and a wifi6 sending module in communication connection with the second bridging module.
8. A screen projection method of a wireless docking station system, which is applied to the wireless docking station screen projection system of any one of claims 6 to 7, and comprises the following steps:
the terminal sends a Wifi data signal to the Wifi6 receiving module through the Wifi6 sending module;
the Wifi6 receiving module receives the Wifi data signal, converts the Wifi data signal into a PCIe protocol interface signal and transmits the PCIe protocol interface signal to the first bridge module through a PCIe protocol interface;
the first bridging module receives the PCIe protocol interface signal, converts the PCIe protocol interface signal into a USB data signal and sends the USB data signal to the USB expansion module;
the USB expansion module receives the USB data signal and sends the USB data signal to a USB external device and a video expansion module;
the USB external equipment receives and outputs the USB data signal;
the video expansion module receives the USB data signal and sends the USB data signal to the external screen projection equipment;
and the external screen projection equipment receives and outputs the USB data signal.
9. The screen-casting method of the wireless docking station system of claim 8, wherein the first bridge module receives the PCIe protocol interface signal, converts the PCIe protocol interface signal into a USB data signal, and sends the USB data signal to the USB expansion module, and comprises:
the first bridging module receives the PCIe protocol interface signal, converts the PCIe protocol interface signal into a USB3.0 protocol signal, and transmits the USB3.0 protocol signal to the USB expansion module through the USB3.0 protocol interface.
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| CN115623069B (en)* | 2022-09-15 | 2025-08-01 | 深圳市湘凡科技有限公司 | Multi-screen projection method and device |
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| CN209543329U (en)* | 2019-04-12 | 2019-10-25 | 东莞市络鑫电子科技有限公司 | An intelligent extended screen projection docking station |
| CN211786842U (en)* | 2020-01-09 | 2020-10-27 | 凯晖科技股份有限公司 | Docking station with wireless function |
| CN112954420A (en)* | 2021-03-26 | 2021-06-11 | 深圳市前海盛雁科技有限公司 | Wireless screen transmission method and system |
| CN215450019U (en)* | 2021-03-29 | 2022-01-07 | 江西络鑫科技有限公司 | Multi-purpose docking station of screen is thrown in intelligence extension |
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| CN114640879A (en) | 2022-06-17 |
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