CN114661647B - Universal serial bus line concentration device and line concentration system - Google Patents
Universal serial bus line concentration device and line concentration system Download PDFInfo
- Publication number
- CN114661647B CN114661647B CN202111382203.8A CN202111382203A CN114661647B CN 114661647 B CN114661647 B CN 114661647B CN 202111382203 A CN202111382203 A CN 202111382203A CN 114661647 B CN114661647 B CN 114661647B
- Authority
- CN
- China
- Prior art keywords
- protocol
- data
- port
- image data
- coupled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 44
- 238000004891 communication Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4027—Coupling between buses using bus bridges
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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; CALCULATING OR 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
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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]
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Information Transfer Systems (AREA)
- Control Of Multiple Motors (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The invention provides a universal serial bus line concentration device and a line concentration system, wherein the line concentration device comprises a first uplink port for transmitting and receiving data, and the data is transmitted by a first protocol or a second protocol; a selector; at least one first downlink port receives the first image data; a first bridging device for receiving the first image data and converting the first image data into the first protocol or the second protocol for transmission; and a second uplink port for receiving the data of the first protocol or the second protocol from the first bridge device.
Description
Technical Field
The present invention relates to an electronic device, and more particularly, to a universal serial bus (usb) hub device and a hub system.
Background
With the rapid development of information technology, applications of electronic products are becoming popular, such as handheld electronic devices like notebook computers, mobile phones, and tablet computers, and are becoming everywhere visible. The electronic devices are characterized by being portable, used anytime and anywhere, and used for transmitting image data to an external screen. One current approach is to enable multiple electronic products to transmit image data or power simultaneously through a one-port-to-multi-port universal serial bus hub (USB hub). In particular, the electronic product can only transmit the image data unidirectionally from the electronic product to the external screen through the universal serial bus hub, but cannot store the image data, and cannot transmit the image data back to the electronic product for processing, so that the electronic product is quite inconvenient to use. In view of the foregoing, there is still a need to develop a new line concentrator to improve the above-mentioned problems.
Disclosure of Invention
One objective of the present invention is to provide a Universal Serial Bus (USB) hub device and a hub system, wherein the hub device is capable of improving the convenience of use by transmitting data between a first host, a second host, a display device and a peripheral device through a selector, a protocol controller, a first bridge device and a second bridge device.
To achieve the above object, one embodiment of the present invention provides a Universal Serial Bus (USB) hub device, comprising: the first uplink port is used for transmitting and receiving data, the data is transmitted by a first protocol or a second protocol, and the data transmitted by the first protocol comprises first image data; a selector coupled to the first upstream port; at least one first downlink port coupled to the selector and receiving the first image data; a first bridge device coupled to the selector for receiving the first image data and converting the first image data into data of the first protocol or the second protocol for transmission; and a second uplink port coupled to the first bridge device for transmitting and receiving the data of the first protocol or the second protocol from the first bridge device.
In an embodiment of the USB hub device, when the first protocol is USB3.0 and the data is transmitted according to the first protocol, the selector transmits the first image data to the at least one first downlink port and the first bridge device, and the first bridge device receives the first image data and converts the first image data into data of the first protocol or the second protocol and transmits the data of the first protocol or the second protocol to the second uplink port.
In one embodiment, the first bridge device converts the first image data into the first protocol or the second protocol data according to a communication protocol used by a device coupled to the second uplink port, and transmits the first image data to the second uplink port.
In an embodiment of the USB hub device, when the first protocol is USB3.0 and the data is transmitted in the first protocol, when a device is coupled to the second upstream port in the first protocol, the first bridge device converts the first image data into the data of the first protocol and transmits the data to the second upstream port.
In an embodiment of the USB hub device, when the first protocol is the USB3.0 protocol and the second protocol is the USB4.0 protocol, when a device is coupled to the second upstream port with the second protocol, the selector transmits the data to the first bridge device with the first protocol, and the first bridge device converts the first image data into the data of the second protocol and transmits the data to the second upstream port.
In one embodiment, the USB hub device further includes: a protocol controller coupled to the selector, adapted to receive the data of the second protocol; at least one second downstream port coupled to the protocol controller, the protocol controller being adapted to convert the data of the second protocol into a second image data and output the second image data to the at least one first downstream port, or to output the data of the second protocol to one of the at least one second downstream port; and a second bridge device coupled to the protocol controller, the protocol controller converting the data of the second protocol into the data of the first protocol and transmitting the data of the second protocol to the second bridge device, or the protocol controller transmitting the data of the second protocol to the second bridge device; the second uplink port is coupled to the second bridge device, and is used for transmitting and receiving data of the first protocol or the second protocol of the first bridge device or data of the first protocol or the second protocol of the second bridge device.
In an embodiment of the USB hub device, when the second protocol is USB4.0, and the data is transmitted according to the second protocol, the selector transmits the data to the protocol controller, and the protocol controller converts the data into the data of the first protocol to the second bridge device or transmits the data of the second protocol to the second bridge device, and then transmits the data to the second uplink port.
In an embodiment of the USB hub device, when the second protocol is USB4.0, and the data is transmitted according to the second protocol, the selector transmits the data to the protocol controller, and the protocol controller converts the data into the second image data and outputs the second image data to the at least one first downlink port, or outputs the data of the second protocol to one of the at least one second downlink port.
In one embodiment, when a display device is coupled to the at least one first downlink port, the second image data is output to the at least one first downlink port, and when the display device is coupled to the at least one second downlink port, the protocol controller outputs the data of the second protocol to the at least one second downlink port.
In one embodiment of the USB hub, the selector is a multiplexer and the first protocol includes an alternate mode (DP) of a Display Port protocol.
One embodiment of the present invention provides a Universal Serial Bus (USB) hub system, comprising: a first host; a second host; a USB hub device includes: a first uplink port for transmitting and receiving data from the first host, the data being transmitted in a first protocol or a second protocol, the data transmitted in the first protocol including first image data; a selector coupled to the first upstream port; at least one first downlink port coupled to the selector and receiving the first image data; a first bridge device coupled to the selector for receiving the first image data and converting the first image data into data of the first protocol or the second protocol for transmission; and a second uplink port coupled to the first bridge device and the second host for receiving the data of the first protocol or the second protocol from the first bridge device; and a display device coupled to the at least one first downlink port for displaying the data.
In an embodiment of the USB hub system, when the first protocol is USB3.0, and the first host transmits the data according to the first protocol, the selector transmits the first image data to the display device connected to the at least one first downlink port and the first bridge device, and the first bridge device receives the first image data and converts the first image data into data of the first protocol or the second protocol and transmits the data of the first protocol or the second protocol to the second host connected to the second uplink port.
In an embodiment of the USB hub system, the first bridge device converts the first image data into data of the first protocol or the second protocol according to a communication protocol used by a device coupled to the second uplink port, and transmits the data to the second host connected to the second uplink port.
In an embodiment of the USB hub system, when the first protocol is USB3.0, the first host transmits the data according to the first protocol, and when the second host is coupled to the second upstream port according to the first protocol, the first bridge device converts the first image data into the data according to the first protocol and transmits the data to the second host connected to the second upstream port.
In an embodiment of the USB hub system, when the first protocol is the USB3.0 protocol, the second protocol is the USB4.0 protocol, and when the second host is coupled to the second upstream port by the second protocol, the selector transmits the data to the first bridge device by the first protocol, and the first bridge device converts the first image data into the data of the second protocol and transmits the data to the second host connected to the second upstream port.
In one embodiment, the USB hub system further comprises a protocol controller coupled to the selector and adapted to receive the data of the second protocol; at least one second downlink port coupled to the protocol controller, the protocol controller being adapted to convert the data of the second protocol into a second image data and output the second image data to the display device connected to the at least one first downlink port, or to output the data of the second protocol to one of the at least one second downlink ports; and a second bridge device coupled to the protocol controller, the protocol controller converting the data of the second protocol into the data of the first protocol and transmitting the data of the second protocol to the second bridge device, or the protocol controller transmitting the data of the second protocol to the second bridge device; the second uplink port is coupled to the second bridge device, and is used for transmitting and receiving data of the first protocol or the second protocol of the first bridge device or data of the first protocol or the second protocol of the second bridge device.
In the USB hub system of one embodiment, when the second protocol is USB4.0, the data is transmitted according to the second protocol, the selector transmits the data to the protocol controller, and the protocol controller converts the data into the data of the first protocol to the second bridge device or transmits the data of the second protocol to the second bridge device, and then transmits the data to the second uplink port.
In the USB hub system of an embodiment, when the second protocol is USB4.0 protocol and the data is transmitted according to the second protocol, the selector transmits the data to the protocol controller, and the protocol controller converts the data into the second image data and outputs the second image data to the display device connected to the at least one first downlink port, or outputs the data of the second protocol to one of the at least one second downlink port.
In the USB hub system of one embodiment, when the display device is coupled to the at least one first downlink port, the second image data is output to the at least one first downlink port, and when the display device is coupled to the at least one second downlink port, the protocol controller outputs the data of the second protocol to the at least one second downlink port.
In one embodiment of the USB hub system, the selector is a multiplexer and the first protocol includes an alternate mode of a display interface (DP) protocol.
The universal serial bus line concentration device and the line concentration system of the invention transmit data in the first host, the second host, the display device and the peripheral device by the selector, the protocol controller, the first bridging device and the second bridging device, so as to improve the use convenience of the line concentration device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings for those having ordinary skill in the art to which the present invention pertains.
FIG. 1 is a block diagram of a hub device according to a first embodiment of the present invention.
FIG. 2 is a block diagram of a hub device according to a second embodiment of the invention.
Detailed Description
Referring to the drawings, wherein like reference numbers represent the same or similar elements, the principles of the present invention are illustrated in a suitable computing environment. The following description is based on illustrative embodiments of the invention and should not be taken as limiting other embodiments of the invention not described in detail herein.
Referring to fig. 1, a system block diagram of a hub device according to a first embodiment of the invention is shown. The universal serial bus (universal serial bus, USB) hub 100a includes a first upstream port 102, a selector 104, at least one first downstream port 108, at least one downstream port 109, a first bridge device 110, and a second upstream port 112.
As shown in the USB hub device 100a of fig. 1, the first uplink port 102 is configured to transmit and receive data according to a first protocol, such as a USB3.0 protocol, or a second protocol, such as a USB4.0 protocol, where the data transmitted according to the first protocol includes either or both of first image data and first data. The selector 104 is coupled to the first uplink port 102, and is configured to control a connection state between the first uplink port 102 and the first bridge device 110, for example, to control the first uplink port 102 to be connected to the first bridge device 110. In one embodiment, the selector 104 is, for example, a multiplexer. At least one first downlink port 108 is coupled to the selector 104 and receives the first image data. The first bridge device 110 is coupled to the selector 104 for receiving the first image data and converting the first image data into data of the first protocol or the second protocol for transmission, for example, the first bridge device 110 transmits the converted data to the second uplink port 112. The second uplink port 112 is coupled to the first bridge device 110 for transmitting and receiving the data of the first protocol or the second protocol from the first bridge device 110.
In one embodiment, when the first protocol is the USB3.0 protocol and the data is transmitted in the first protocol, the data transmitted in the first protocol includes, for example, the first image data, as shown in fig. 1. In other words, the selector 104 transmits the first image data to the first bridge device 110. The first bridging device 110 receives the first image data and converts the first image data into data of the first protocol or the second protocol to transmit to the second uplink port 112. Further, the first protocol includes an alternative mode (alternative mode) of a Display Port (DP) protocol, and the data in this embodiment can be transmitted in an alternative mode of the Display Port (DP) protocol, so that the first bridge device 110 converts the first image data into data, such as USB3.0 protocol (first protocol) or data, such as USB4.0 (second protocol), after receiving the first image data, and then transmits the first image data to the second uplink Port 112. The data transmitted in the alternative mode of the display interface (DP) protocol includes, for example, the first image data or both the first image data and the first data.
As mentioned above, in the USB hub device 100a of the present embodiment, the first bridge device 110 converts the first image data into the first protocol or the second protocol data according to the communication protocol used by a device coupled to the second uplink port 112, and transmits the first image data to the second uplink port 112. The following description will take the data as an example of the data being transmitted to the USB hub device 100a through the first uplink port 102 in the alternative mode of the display interface (DP) protocol. Referring to fig. 1 again, in one embodiment, when a device is also coupled to the second uplink port 112 according to the first protocol, and the first bridge device 110 receives the first image data transmitted from the selector 104, the first bridge device 110 converts the first image data into data according to the first protocol and transmits the data to the second uplink port 112, and then transmits the data to the device through the second uplink port 112.
In another embodiment, when another device is coupled to the second upstream port 112 in the second protocol, and the selector 104 transmits the data to the first bridge device 110 in the first protocol, the first bridge device 110 can convert the first image data into the data of the second protocol and transmit the data to the second upstream port 112.
As described above, the data can be sequentially transmitted from the first uplink port 102, the selector 104 and the first bridge device 110 to the second uplink port 112, the data transmitted to the second uplink port 112 can also be sequentially transmitted from the second uplink port 112, the first bridge device 110 and the selector 104 back to the first uplink port 102, or sequentially transmitted from the second uplink port 112 and the selector 104 back to the first uplink port 102, and then back to the first host 200, and the data can be transmitted from the first uplink port 102 to the at least one first downlink port 108 via the selector 104, so as to improve the usability of the USB hub 100 a. The data transmitted to the second host 202 may be stored in the second host 202, or may be displayed on the second host 202 having a display device. In a preferred embodiment, the data sent back to the first host 200 may also be stored in the first host 200, which is not limited in any way herein.
As shown in FIG. 1, the USB hub system includes a first host 200, a second host 202, a USB hub device 100a, a display device 204, and a peripheral device 206. The USB hub device 100a includes a first upstream port 102, a selector 104, at least one first downstream port 108, at least one downstream port 109, a first bridge device 110, and a second upstream port 112. The first uplink port 102 is configured to transmit and receive data from the first host 200, wherein the data is transmitted in a first protocol or a second protocol. The selector 104 is coupled to the first upstream port, and in one embodiment, the selector 104 is a multiplexer, for example. At least one first downlink port 108 is coupled to the selector 104 and receives the first image data. The first bridge device 110 is coupled to the selector 104 for receiving the first image data and converting the first image data into the first protocol or the second protocol for transmission. The second uplink port 112 is coupled to the first bridge device 110 and the second host 200, and is configured to receive the data of the first protocol or the second protocol from the first bridge device 110. The display device 204 is coupled to the at least one first downlink port 108 for displaying the data. The first downlink Port 108 coupled to the Display device 204 is, for example, a Display Port interface conforming to the VESA (Video Electronics Standards Association) standard.
In a preferred embodiment, the USB hub 100a may further be provided with a downstream port 109, such as a C-type connector or other connector supporting USB protocol, and the peripheral device 206 may be coupled to the downstream port 109. Therefore, when transmitting in the alternative mode of the data display interface (DP) protocol, the first data may be transmitted to the downlink port 109 via the selector 104, so as to be received by the peripheral device 206.
In the USB hub system shown in fig. 1, when the first protocol is USB3.0, the first host 200 transmits the data to the first uplink port 102 according to the first protocol, and the data is transmitted to the selector 104 through the first uplink port 102. In case the data is transmitted in an alternative mode of the display interface (DP) protocol, the data comprises, for example, the first image data or both the first image data and the first data. The selector 104 transmits the first image data to the display device 204 and the first bridge device 110 connected to the at least one first downlink port 108. After the data is transferred to the selector 104 in the alternative mode of the display interface (DP) protocol, the first bridge device 110 coupled to the selector 104 receives the first image data from the selector 104 and converts the first image data into data of the first protocol or the second protocol to be transferred to the second host 202 connected to the second up port 112. In a preferred embodiment, the first image data may also be transferred to the display device 204 coupled to the first downlink port 108 after the data is transferred to the selector 104 in an alternate mode of a display interface (DP) protocol.
In the USB hub system shown in fig. 1, the first bridge device 110 converts the first image data into the first protocol or the second protocol data according to a communication protocol used by a device (e.g., the second host 202) coupled to the second uplink port 112, and transmits the first image data to the second host 202 connected to the second uplink port 112. In one embodiment, the first protocol includes an alternate mode of the display interface (DP) protocol. For example, in the USB hub system shown in fig. 1, when the first protocol is the USB3.0 protocol and the first host 200 transmits the data according to the first protocol, when the second host 202 is coupled to the second uplink port 112 according to the first protocol, the first bridge device 110 converts the first image data into the data according to the first protocol and transmits the data to the second host 202 connected to the second uplink port 112. For example, in the USB hub system shown in fig. 1, when the first protocol is the USB3.0 protocol and the second protocol is the USB4.0 protocol, when the second host 202 is coupled to the second upstream port 112 by the second protocol, the selector 104 transmits the data to the first bridge device 110 by the first protocol, and the first bridge device 110 converts the first image data into the data of the second protocol and transmits the data to the second host 202 connected to the second upstream port 112.
As described above, in the USB hub system of fig. 1, the data can be sequentially transmitted from the first host 200, the first uplink port 102, the selector 104, the first bridge device 110 and the second uplink port 112 to the second host 202, the data transmitted to the second host 202 can also be sequentially transmitted from the second host 202, the second uplink port 112, the first bridge device 110, the selector 104 and the first uplink port 102 back to the first host 200, or sequentially transmitted from the second host 202, the second uplink port 112, the selector 104 and the first uplink port 102 back to the first host 200, and the first host 200 can also transmit the data to the display device 204 connected to the at least one first downlink port 108 via the first uplink port 102 and the selector 104, so as to improve the usability of the USB hub system. The data transmitted to the second host 202 may be stored in the second host 202, or may be displayed on the second host 202 having a display device. In a preferred embodiment, the data sent back to the first host 200 may also be stored in the first host 200, which is not limited in any way herein.
Referring to fig. 2, a system block diagram of a hub device according to a second embodiment of the invention is shown. The universal serial bus (universal serial bus, USB) hub 100b includes a first upstream port 102, a selector 104, at least one first downstream port 108, a first bridge device 110, a second upstream port 112, a protocol controller 114, at least one second downstream port 116, and a second bridge device 118. The first upstream port 102, the selector 104, the at least one first downstream port 108, the first bridge device 110, and the second upstream port 112 of the universal serial bus (universal serial bus, USB) hub device 100b are similar or identical to the first upstream port 102, the selector 104, the at least one first downstream port 108, the first bridge device 110, and the second upstream port 112 of the universal serial bus USB hub device 100 a. As shown in FIG. 2, the USB hub system further comprises a first host 200, a second host 202, a USB hub device 100b, a display device 204 and a peripheral device 206. Wherein the first host 200 and the second host 202 of fig. 2 are used to transmit and receive the data on the first upstream port 110 and the second upstream port 112, like the first host 200 and the second host 202 described in fig. 1.
In this embodiment, the first upstream Port 102, the second upstream Port 104 and the at least one second downstream Port 116 are, for example, C-type connectors supporting the USB protocol, and the at least one first downstream Port 108 is, for example, a Display Port interface conforming to the VESA (Video Electronics Standards Association) standard.
As shown in the USB hub 100b of FIG. 2, a protocol controller 114 is coupled to the selector 106 and adapted to receive the data of the second protocol. At least one second downstream port 116 is coupled to the protocol controller 114, and the protocol controller 114 is adapted to convert the data of the second protocol into a second image data and output the second image data to the at least one first downstream port 108 or output the data of the second protocol to one of the at least one second downstream port 116. The second bridge device 118 is coupled to the protocol controller 114, and the protocol controller 114 converts the data of the second protocol into the data of the first protocol and transmits the data to the second bridge device 118, or the protocol controller 114 transmits the data of the second protocol to the second bridge device 118. The second uplink port 104 is coupled to the second bridge device 118, and is configured to transmit and receive data of the first protocol or the second protocol of the first bridge device 110, or is configured to transmit and receive data of the first protocol or the second protocol of the second bridge device 118.
As shown in the USB hub device 100b of fig. 2, when the second protocol is the USB4.0 protocol and the data is transmitted according to the second protocol, the selector 106 transmits the data to the protocol controller 114, and the protocol controller 114 converts the data into the data of the first protocol to the second bridge device 118 or transmits the data of the second protocol to the second bridge device 118 and then to the second upstream port 104.
As shown in the USB hub device 100b of fig. 2, when the second protocol is the USB4.0 protocol, the data is transmitted according to the second protocol, and the display device 204 is coupled to the first downlink port 108, the selector 106 transmits the data to the protocol controller 114, and the protocol controller 114 converts the data into the second image data and outputs the second image data to the display device 204 through the at least one first downlink port 108. The first downlink Port 108 coupled to the Display device 204 is a Display Port interface conforming to VESA (Video Electronics Standards Association) standard.
Further, as shown in the USB hub device 100b of fig. 2, when a display device 204 is coupled to the at least one first downlink port 108, the second image data is output to the at least one first downlink port 108. On the other hand, when the display device 204 is coupled to the second downstream port 116, such as a C-type connector supporting the USB protocol, and not coupled to the first downstream port 108, the protocol controller 116 outputs the data of the second protocol to the at least one second downstream port 116 without outputting the second image data. In a preferred embodiment, when the at least one first downlink port 108 is coupled to the display device 204 and the at least one second downlink port 116 is coupled to a peripheral device 206, the protocol controller 116 outputs the second image data to the display device 204 via the first downlink port 108 and also outputs the data of the second protocol to the peripheral device 206 via the second downlink port 116, as shown in fig. 2.
In one embodiment, the protocol controller 114 is configured to trigger the selector 106 to interface the selector 104 with the first downstream port 108, the second upstream port 112, and the second downstream port 116. In addition, the first host 200, the second host 202, the display device 204 and the peripheral device 206 each include a controller for controlling the connection status between the first host 200, the second host 202, the display device 204 and the peripheral device 206 and the first uplink port 102, the second uplink port 112, the first downlink port 108 and the second downlink port 116, respectively. In the embodiment shown in fig. 1 and 2, the first upstream Port 102, the second upstream Port 104 and the at least one second downstream Port 116 support a C-type connector of the USB protocol, and the at least one first downstream Port 108 is, for example, a displayport interface conforming to the VESA (Video Electronics Standards Association) standard.
In addition to the data being sequentially transferred from the first host 200, the first uplink port 102, the selector 104, the first bridge device 110 and the second uplink port 112 to the second host 202, the data being transferred to the second host 202 may be sequentially transferred from the second host 202, the second uplink port 112, the first bridge device 110, the selector 104 and the first uplink port 102 to the first host 200, or sequentially transferred from the second host 202, the second uplink port 112, the selector 104 and the first uplink port 102 to the first host 200, and the first host 200 may be transferred to the display device 204 connected to the at least one first downlink port 108 via the first uplink port 102 and the selector 104, so as to improve the usability of the USB hub system.
In addition, as described above with respect to the USB hub system of fig. 2, the data is sequentially transferred from the first host 200, the first upstream port 102, the selector 104, the protocol controller 114, the second bridging device 118, and the second upstream port 112 to the second host 202. In another embodiment, the data is sequentially transmitted from the first host 200, the first uplink port 102, the selector 104, and the protocol controller 114 to at least one of the first downlink port 108 and the second downlink port 116, so as to improve the convenience of use of the USB hub system. The data transmitted to the second host 202 may be stored in the second host 202, or may be displayed on the second host 202 having a display device. In a preferred embodiment, the data sent back to the first host 200 may also be stored in the first host 200, which is not limited in any way herein.
In summary, the universal serial bus hub device and the hub system according to the present invention can improve the convenience of use of the hub device by transmitting data from the selector, the protocol controller, the first bridge device and the second bridge device to the first host, the second host, the display device and the peripheral device.
In summary, although the present invention has been described in terms of the preferred embodiments, the preferred embodiments are not limited to the above embodiments, and various modifications and changes can be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention is defined by the appended claims.
Claims (12)
1. A Universal Serial Bus (USB) hub apparatus, comprising:
a first uplink port for transmitting and receiving data, the data being transmitted in a first protocol or a second protocol, the data transmitted in the first protocol comprising a first image data;
a selector coupled to the first upstream port;
at least one first downlink port coupled to the selector and receiving the first image data;
a first bridge device coupled to the selector for receiving the first image data and converting the first image data into data of the first protocol or the second protocol for transmission; a protocol controller coupled to the selector, adapted to receive the data of the second protocol;
a second uplink port coupled to the first bridge device for transmitting and receiving the data of the first protocol or the second protocol from the first bridge device;
at least one second downstream port coupled to the protocol controller, the protocol controller being adapted to convert the data of the second protocol into a second image data and output the second image data to the at least one first downstream port, or to output the data of the second protocol to one of the at least one second downstream port; and
a second bridge device coupled to the protocol controller, the protocol controller converting the data of the second protocol into the data of the first protocol and transmitting the data of the second protocol to the second bridge device, or the protocol controller transmitting the data of the second protocol to the second bridge device, wherein when the first protocol is USB3.0 protocol, the second protocol is USB4.0 protocol, and the data is transmitted in the first protocol, the selector transmits the first image data to the at least one first downstream port and the first bridge device, and the first bridge device receives the first image data and converts the first image data into the data of the first protocol or the second protocol and transmits the data of the first protocol to the second upstream port;
when a device is coupled to the second uplink port by the first protocol, the first bridge device converts the first image data into the first protocol data and transmits the first protocol data to the second uplink port, and when a device is coupled to the second uplink port by the second protocol, the selector transmits the first protocol data to the first bridge device, the first bridge device converts the first image data into the second protocol data and transmits the second protocol data to the second uplink port, and the second uplink port is coupled to the second bridge device and is used for transmitting and receiving the first protocol data or the second protocol data of the first bridge device or the second protocol data of the second bridge device.
2. The USB hub of claim 1, wherein the first bridge device converts the first image data into the first protocol or the second protocol data according to a communication protocol used by a device coupled to the second upstream port and transmits the first protocol or the second protocol data to the second upstream port.
3. The USB hub device according to claim 1, wherein when the second protocol is USB4.0 and the data is transferred in the second protocol, the selector transfers the data to the protocol controller, and the protocol controller converts the data into data of the first protocol to the second bridge device or transfers the data of the second protocol to the second bridge device and then to the second upstream port.
4. The USB hub device according to claim 1, wherein when the second protocol is USB4.0 and the data is transmitted in the second protocol, the selector transmits the data to the protocol controller, and the protocol controller converts the data into the second image data and outputs the second image data to the at least one first downstream port or outputs the data of the second protocol to one of the at least one second downstream port.
5. The USB hub device according to claim 4, wherein when a display device is coupled to the at least one first downstream port, the second image data is output to the at least one first downstream port, and when the display device is coupled to the at least one second downstream port, the protocol controller outputs the data of the second protocol to the at least one second downstream port.
6. The USB hub device according to claim 1, wherein the selector is a multiplexer and the first protocol includes an alternate mode (DP) of a Display Port (DP) protocol.
7. A Universal Serial Bus (USB) hub system, comprising:
a first host;
a second host;
a USB hub device, comprising:
a first uplink port for transmitting and receiving data from the first host, the data being transmitted in a first protocol or a second protocol, the data transmitted in the first protocol including a first image data;
a selector coupled to the first upstream port;
at least one first downlink port coupled to the selector and receiving the first image data;
a first bridge device coupled to the selector for receiving the first image data and converting the first image data into data of the first protocol or the second protocol for transmission;
a protocol controller coupled to the selector, adapted to receive the data of the second protocol;
a second uplink port coupled to the first bridge device and the second host for receiving the data of the first protocol or the second protocol from the first bridge device;
a display device coupled to the at least one first downlink port for displaying the data;
at least one second downlink port coupled to the protocol controller, the protocol controller being adapted to convert the data of the second protocol into a second image data and output the second image data to the display device connected to the at least one first downlink port, or to output the data of the second protocol to one of the at least one second downlink ports; and
a second bridge device coupled to the protocol controller, the protocol controller converting the data of the second protocol into the data of the first protocol and transmitting the data of the second protocol to the second bridge device, or the protocol controller transmitting the data of the second protocol to the second bridge device, the second uplink port coupled to the second bridge device for transmitting and receiving the data of the first protocol or the second protocol of the first bridge device, or for transmitting and receiving the data of the first protocol or the second protocol of the second bridge device;
when the first protocol is USB3.0 protocol and the first host transmits the data according to the first protocol, the selector transmits the first image data to the display device and the first bridge device connected to the at least one first downlink port, and the first bridge device receives the first image data and converts the first image data into data of the first protocol or the second protocol and transmits the data to the second host connected to the second uplink port;
when the second host is coupled to the second uplink port by the first protocol, the first bridging device converts the first image data into data of the first protocol and transmits the data to the second host connected to the second uplink port, when the second host is USB4.0 protocol, and when the second host is coupled to the second uplink port by the second protocol, the selector transmits the data to the first bridging device by the first protocol, and the first bridging device converts the first image data into data of the second protocol and transmits the data to the second host connected to the second uplink port.
8. The USB hub system of claim 7, wherein the first bridge device converts the first image data into the first protocol or the second protocol according to a communication protocol used by a device coupled to the second upstream port, and transmits the first image data to the second host connected to the second upstream port.
9. The USB hub system according to claim 7, wherein when the second protocol is USB4.0 and the data is transferred in the second protocol, the selector transfers the data to the protocol controller, and the protocol controller converts the data into data of the first protocol to the second bridge device or transfers the data of the second protocol to the second bridge device and then to the second upstream port.
10. The USB hub system according to claim 7, wherein when the second protocol is USB4.0 and the data is transmitted in the second protocol, the selector transmits the data to the protocol controller, and the protocol controller converts the data into the second image data to output to the display device connected to the at least one first downstream port or outputs the data of the second protocol to one of the at least one second downstream port.
11. The USB hub system according to claim 10, wherein when the display device is coupled to the at least one first downstream port, the second image data is output to the at least one first downstream port, and when the display device is coupled to the at least one second downstream port, the protocol controller outputs the data of the second protocol to the at least one second downstream port.
12. The USB hub system according to claim 7, wherein the selector is a multiplexer and the first protocol includes an alternate mode (DP) of a Display Port (DP) protocol.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW109145424A TWI804789B (en) | 2020-12-22 | 2020-12-22 | Usb hub device and hub system |
| TW109145424 | 2020-12-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114661647A CN114661647A (en) | 2022-06-24 |
| CN114661647B true CN114661647B (en) | 2024-03-01 |
Family
ID=82026465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111382203.8A Active CN114661647B (en) | 2020-12-22 | 2021-11-22 | Universal serial bus line concentration device and line concentration system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114661647B (en) |
| TW (1) | TWI804789B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM419160U (en) * | 2011-05-06 | 2011-12-21 | Green Box Technology Co Ltd | Keyboard-video-mouse (KVM) switch device |
| EP2711843A1 (en) * | 2012-09-21 | 2014-03-26 | Nxp B.V. | DisplayPort over USB mechanical interface |
| CN106201943A (en) * | 2015-05-29 | 2016-12-07 | 创惟科技股份有限公司 | Hub device and method for universal serial bus connecting different types of connection ports |
| TW201810050A (en) * | 2016-09-01 | 2018-03-16 | 優派國際股份有限公司 | Display apparatus and switch for electronic apparatuses |
| CN213069787U (en) * | 2019-11-06 | 2021-04-27 | 创惟科技股份有限公司 | Read-write control system of memory card |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006238413A (en) * | 2005-01-27 | 2006-09-07 | Nec Electronics Corp | Usb hub, usb-compliant apparatus, and communication system |
| CN101764817A (en) * | 2009-12-24 | 2010-06-30 | 中兴通讯股份有限公司 | Wireless access data terminal and system and method for realizing data communication |
| US20120290761A1 (en) * | 2011-05-10 | 2012-11-15 | Jui-Yen Chen | USB Converter and Related Method |
| US9665525B2 (en) * | 2014-06-09 | 2017-05-30 | High Sec Labs Ltd. | Multi-host docking device |
| US10083147B2 (en) * | 2016-12-30 | 2018-09-25 | Intel Corporation | Apparatuses and methods for multilane universal serial bus (USB2) communication over embedded universal serial bus (eUSB2) |
| US11190568B2 (en) * | 2019-01-09 | 2021-11-30 | Bose Corporation | Multimedia communication encoding system |
| TWI705369B (en) * | 2019-05-15 | 2020-09-21 | 緯創資通股份有限公司 | Hub device, display device and the operation method thereof |
| TWM612609U (en) * | 2020-12-22 | 2021-06-01 | 創惟科技股份有限公司 | Usb hub device and hub system |
-
2020
- 2020-12-22 TW TW109145424A patent/TWI804789B/en active
-
2021
- 2021-11-22 CN CN202111382203.8A patent/CN114661647B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM419160U (en) * | 2011-05-06 | 2011-12-21 | Green Box Technology Co Ltd | Keyboard-video-mouse (KVM) switch device |
| EP2711843A1 (en) * | 2012-09-21 | 2014-03-26 | Nxp B.V. | DisplayPort over USB mechanical interface |
| CN106201943A (en) * | 2015-05-29 | 2016-12-07 | 创惟科技股份有限公司 | Hub device and method for universal serial bus connecting different types of connection ports |
| TW201810050A (en) * | 2016-09-01 | 2018-03-16 | 優派國際股份有限公司 | Display apparatus and switch for electronic apparatuses |
| CN213069787U (en) * | 2019-11-06 | 2021-04-27 | 创惟科技股份有限公司 | Read-write control system of memory card |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202225992A (en) | 2022-07-01 |
| CN114661647A (en) | 2022-06-24 |
| TWI804789B (en) | 2023-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8648843B2 (en) | USB image transmission system and device | |
| KR100743491B1 (en) | Universal interface devices and method thereof | |
| CN101790090A (en) | Remote desktop monitor and control system and method | |
| GB2369959A (en) | Holder for connecting a mobile communications device to a screen | |
| US8607101B2 (en) | RS-485 port test apparatus | |
| CN114661647B (en) | Universal serial bus line concentration device and line concentration system | |
| TWM445721U (en) | Electric device of switchable display and computer system thereof | |
| TWM612609U (en) | Usb hub device and hub system | |
| CN208782954U (en) | A kind of terminal device | |
| KR20070006078A (en) | Electric apparatus and control method thereof | |
| CN218037820U (en) | Universal serial bus line concentrator and system | |
| US20030210208A1 (en) | Portable computer capable of displaying foreign image signal | |
| US20170220069A1 (en) | Docking apparatus and control method thereof | |
| CN211979654U (en) | Transmission device | |
| CN202049411U (en) | Integrated display | |
| CN212990087U (en) | KVM equipment with remote control function | |
| US11809365B2 (en) | Data transmission method | |
| KR102001881B1 (en) | Multi-channel video traffic generator | |
| CN216848590U (en) | External computer module | |
| CN217932555U (en) | Circuit for docking station and docking station | |
| CN220209562U (en) | Multifunctional docking station | |
| US20240028548A1 (en) | Universal serial bus (usb) hub with host bridge function and control method thereof | |
| CN213876695U (en) | Display interface circuit and display device | |
| GB2444352A (en) | Wireless transmission arrangement for connecting host and monitor | |
| JP2005353031A (en) | Multi-transmission device and system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |