CN115494972A - KVM switcher with data inter-copying function - Google Patents
KVM switcher with data inter-copying function Download PDFInfo
- Publication number
- CN115494972A CN115494972A CN202211173379.7A CN202211173379A CN115494972A CN 115494972 A CN115494972 A CN 115494972A CN 202211173379 A CN202211173379 A CN 202211173379A CN 115494972 A CN115494972 A CN 115494972A
- Authority
- CN
- China
- Prior art keywords
- switch
- hub
- signal
- uplink port
- electrically connected
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
-
- 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
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
-
- 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
- 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03543—Mice or pucks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
-
- 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)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Information Transfer Systems (AREA)
Abstract
The invention provides a KVM switcher with data inter-copying function, comprising: the device comprises a first uplink port, a second uplink port, a switch key, a controller electrically connected with the switch key, a first concentrator electrically connected with the first uplink port, a second concentrator electrically connected with the second uplink port, mutually copying chips electrically connected with the first concentrator and the second concentrator respectively, a first USB switcher electrically connected with the first concentrator and the second concentrator respectively, and an expansion module electrically connected with the first USB switcher. The first hub, the second hub and the inter-copying chip are matched to form a link channel of the first uplink port and the second uplink port, so that data transmission between the two devices is realized. And the first hub and the second hub can be utilized to ensure that the first uplink port or the second uplink port is not influenced to be matched with the expansion equipment for use.
Description
Technical Field
The present invention relates to the field of computer peripheral electronic products, and more particularly, to a KVM switch with data inter-copy function.
Background
As is well known, a kvm switch is a computer management device, through which a set of a keyboard, a mouse, and a display can be used to control a plurality of computers, and has a hub inside for the mouse and the keyboard, a video switcher for outputting video signals of the computers to a display screen, and a switching module for switching such that the hub and the video switcher are used with the same computer. However, the existing switcher cannot directly copy data among multiple computers, and further needs to additionally use a usb disk to copy data among two or more computers, which is cumbersome to operate.
Accordingly, the prior art is in need of improvement and development.
Disclosure of Invention
The present invention provides a KVM switch with data inter-copy function, which is used to solve the problem that the existing switch does not have data copying between multiple computers.
The technical scheme of the invention is as follows: a KVM switch with data inter-copy function, comprising: the device comprises a first uplink port, a second uplink port, a switch key, a controller electrically connected with the switch key, a first concentrator electrically connected with the first uplink port, a second concentrator electrically connected with the second uplink port, mutually copied chips electrically connected with the first concentrator and the second concentrator respectively, a first USB switcher electrically connected with the first concentrator and the second concentrator respectively, and an expansion module electrically connected with the first USB switcher;
the first uplink port is used for connecting a first device, the second uplink port is used for connecting a second device, the controller is used for detecting a key signal of the switching key and outputting a first switch signal to the first USB switcher according to the key signal, and the first USB switcher conducts the expansion module with the first hub or the second hub according to the first switch signal;
the expansion module is used for connecting a mouse and a keyboard, the expansion module is electrically connected with a first hub through a first USB switcher, the expansion module is used for transmitting electric signals input by the mouse and the keyboard to the first USB switcher, the first USB switcher is used for transmitting signals input by the expansion module to the first hub or a second hub, the first hub is used for outputting the signals input by the first USB switcher to a first device through a first uplink port, and the second hub is used for outputting the signals input by the first USB switcher to a second device through a second uplink port;
when data of a first device is copied to a second device, the expansion module is electrically connected with the second hub through the first USB switch, a mouse or a keyboard inputs a first electric signal for executing a data mutual copying instruction, the first electric signal is transmitted to the first device through the expansion module, the first USB switch, the first hub and the first uplink port in sequence, and the first device transmits data to be copied to the second device through the first uplink port, the first hub, the mutual copying chip, the second hub and the second uplink port in sequence according to the first electric signal;
or when the data of the second device is copied to the first device, a second electrical signal used for executing a data inter-copying instruction is input by the mouse or the keyboard, the second electrical signal is sequentially transmitted to the second device through the expansion module, the first USB switch, the second hub and the second uplink port, and the second device sequentially transmits the data to be copied to the first device through the second uplink port, the second hub, the inter-copying chip, the first hub and the first uplink port according to the second electrical signal.
Further, the expansion module further comprises a video switcher electrically connected to the controller, the first uplink port and the second uplink port, respectively, and the expansion module comprises a first video interface electrically connected to the video switcher.
Further, the expansion module includes: the third hub is electrically connected with the first USB switcher, and the plurality of first USB interfaces are electrically connected with the third hub.
Furthermore, the expansion module further comprises a second USB switch electrically connected to the controller, the first hub and the second hub, respectively, and the expansion module further comprises an audio chip electrically connected to the second USB switch and an audio interface electrically connected to the audio chip.
Further, a video converter is connected between the first video interface and the video switcher, and the first video interface is an HDMI interface.
Further, the expansion module further comprises a DP interface electrically connected to the video converter.
Further, when the first uplink port is used for connecting a notebook computer, a first signal switch is connected between the video switcher and the first uplink port, the first signal switch is also electrically connected with the first hub, the first signal switch is used for dividing signals output by the first uplink port into USB3.0 signals and video signals, the first signal switch is used for transmitting the USB3.0 signals to the first hub, the USB2.0 signals of the first uplink port are transmitted to the first hub, and the first signal switch is used for transmitting the video signals to the video switcher.
Further, when the second uplink port is used for connecting a notebook computer, a second signal switch is connected between the video switch and the second uplink port, the second signal switch is further electrically connected with a second hub, the second signal switch is used for dividing signals output by the second uplink port into USB3.0 signals and video signals, the second signal switch is used for transmitting the USB3.0 signals to the second hub, the USB2.0 signals of the second uplink port are transmitted to the second hub, and the second signal switch is used for transmitting the video signals to the video switch.
Further, the first USB switch includes a first USB2.0 signal switch and a first USB3.0 signal switch, the first USB2.0 signal switch is electrically connected to the first hub, the second hub and the third hub, respectively, and the first USB3.0 signal switch is electrically connected to the first hub, the second hub and the third hub, respectively.
Furthermore, the KVM switch further includes a power interface and a first power circuit electrically connected to the power interface, where the first power circuit is configured to perform rectification, filtering and conversion on a first power input from the power interface, and then respectively provide the first power to the controller, the first signal switch, the second signal switch, the video switch, the first USB2.0 signal switch, the second USB3.0 signal switch, the first hub, the second hub, the third hub, the first USB interface, the controller, the first video interface, the second video interface, the audio chip, and the inter-copy chip, which are electrically connected to each other.
The invention has the beneficial effects that: compared with the prior art, the method and the device realize that the mutual copying channel is formed between the first device and the second device by configuring the mutual copying chip so as to realize mutual copying and use of data between the first device and the second device and facilitate a user to transmit and use the data of the two devices. In order to form the inter-copy channel between the first device and the second device and realize the KVM switching function, the first hub expands a group of USB channels on the first uplink port into a plurality of groups of USB channels, and the second hub expands a group of USB channels on the second uplink port into a plurality of groups of USB channels, wherein one group of USB channels expanded by the first hub and the second hub are used by the inter-copy chip, and other USB channels are used by the first USB switch, so that the data inter-copy between the two devices is realized without affecting the function of the KVM switch.
Drawings
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a schematic block diagram of a power interface of the present invention supplying power to a first uplink port and a second uplink port;
fig. 3 is a schematic block diagram of the first uplink port and the second uplink port of the present invention, which are applied to a notebook computer and have the inter-copy chip removed.
Detailed Description
The invention is further described below with reference to the drawings and the embodiments.
Referring to fig. 1-3, a KVM switch with data inter-copy function according to an embodiment of the present invention is shown.
Referring to fig. 1, the KVM switch with data inter-copy function includes: the device comprises a first uplink port 1, a second uplink port 2, a switch key 71, a controller 7 electrically connected with the switch key 71, a first hub 3 electrically connected with the first uplink port 1, a second hub 4 electrically connected with the second uplink port 2, a mutual copying chip 5 electrically connected with the first hub 3 and the second hub 4, a first USB switcher 6 electrically connected with the first hub 3 and the second hub 4, and an expansion module 8 electrically connected with the first USB switcher 6.
The expansion module 8 is used for connecting a mouse, a keyboard, a USB flash disk, a printer and the like, the first uplink port 1 is used for connecting a first device, and the second uplink port 2 is used for connecting a second device, wherein the first device and the second device can be a desktop computer, a notebook computer, a mobile phone, a tablet and the like.
The controller 7 is configured to detect a key signal of the switch key 71 and output a first switch signal to the first USB switch 6 according to the key signal, and the first USB switch 6 connects the expansion module 8 with the first hub 3 or the second hub 4 according to the first switch signal. The expansion module 8 is configured to transmit electrical signals input by a mouse and a keyboard to the first USB switch 6, the first USB switch 6 is configured to transmit signals input by the expansion module 8 to the first hub 3 or the second hub 4, the first hub 3 is configured to output signals input by the first USB switch 6 to the first device through the first uplink port 1, and the second hub 4 is configured to output signals input by the first USB switch 6 to the second device through the second uplink port 2. Therefore, by pressing the switch key 71, the expansion module 8 can be controlled to be used in cooperation with the first uplink port 1 or the second uplink port 2, and equipment such as a mouse and a keyboard can be used in cooperation with the first equipment or the second equipment.
When the data of the first device is copied to the second device, the expansion module 8 is electrically connected with the first hub 3 through the first USB switch 6, so that the expansion module 8 can be used with the first device. The first electrical signal is transmitted to the first device through the expansion module 8, the first USB switch 6, the first hub 3 and the first uplink port 1 in sequence, and the first device transmits the data to be copied to the second device through the first uplink port 1, the first hub 3, the mutual copying chip 5, the second hub 4 and the second uplink port 2 in sequence according to the first electrical signal, so that the data of the first device is transmitted to the second device.
When the data of the second device is copied to the first device, the expansion module 8 is electrically connected with the second hub 4 through the first USB switch 6, so that the expansion module 8 can be used with the second device. The second electrical signal used for executing a data inter-copying instruction is input by a mouse or a keyboard, the second electrical signal is sequentially transmitted to the second device through the expansion module 8, the first USB switcher 6, the second hub 4 and the second uplink port 2, and the second device transmits data to be copied to the first device through the second uplink port 2, the second hub 4, the inter-copying chip 5, the first hub 3 and the first uplink port 1 in sequence according to the second electrical signal so as to transmit the data of the second device to the first device.
According to the invention, the mutual copying channel is formed between the first device and the second device by configuring the mutual copying chip 5, so that the mutual copying use of the data between the first device and the second device is realized, and a user can conveniently transmit and use the data of the two devices. In order to form the inter-copy channel between the first device and the second device and realize the KVM switch function, the first hub 3 expands a group of USB channels on the first uplink port 1 into a plurality of groups of USB channels, and the second hub expands a group of USB channels on the second uplink port 2 into a plurality of groups of USB channels, wherein the group of USB channels expanded by the first hub 3 and the second hub 4 is used by the inter-copy chip 5, and the other USB channels are used by the first USB switch 6, so that the inter-copy of data between the two devices is realized without affecting the function of the KVM switch.
Specifically, the copy chip has a copy driver therein, and when the first uplink port 1 and the second uplink port 2 are connected to the first device and the second device, respectively, the copy chip sends a first driver to the first device via the first hub 3 and the first uplink port 1, and also sends a second driver to the second device via the second hub 4 and the second uplink port 2, where the first device installs the first driver and the second device installs the second driver. Furthermore, when the data of the first device is copied to the second device, the data to be copied of the first device can be dragged into the first driver, and the copied data can be transmitted to the second driver on the second device through the first uplink port 1, the first hub 3, the mutual copy chip 5, the second hub 4 and the second uplink port 2. On the contrary, when the data of the first device is copied to the second device, the data to be copied of the second device can be dragged into the second driver, and the copied data can be transmitted to the first driver on the first device through the second uplink port 2, the second hub 4, the inter-copy chip 5, the first hub 3 and the first uplink port 1, so as to copy the data.
Specifically, the inter-copy chip 5 may be an OTI7300 type chip.
Referring to FIG. 2, in one embodiment, the KVM switch further comprises a power interface 9, a PD control chip 10, a first flash protocol chip 13 and a first switch circuit 12. The PD control chip 10 is electrically connected to the CC channel of the first uplink port 1, respectively, to implement communication with the first device. The first fast charging protocol chip 13 is electrically connected to the PD control chip 10 and the first switching tube circuit 12, respectively, and the first switching tube circuit 12 is further electrically connected to the power interface 9 and the first uplink port 1.
The PD control chip 10 is used for detecting whether the accessed device has a fast charging function through the first uplink port 1, and the PD control chip 10 feeds back a first signal to the first fast charging protocol chip 13 when detecting that the device has the fast charging function, the first fast charging protocol chip 13 controls the first switching tube circuit 12 to be turned on according to the first signal, and the first switching tube circuit 12 is turned on to output the power input by the power interface 9 to the first uplink port 1, so as to output the fast charging power to the device.
In one embodiment, the KVM switch further includes a second flash protocol chip 23 and a second switch circuit 22. The PD control chip 10 is electrically connected to the CC channel of the second uplink port 2, respectively, to implement communication with the second device. The second fast charging protocol chip 23 is electrically connected to the PD control chip 10 and the second switching tube circuit 22, respectively, and the second switching tube circuit 22 is further electrically connected to the power interface 9 and the second uplink port 2.
The PD control chip 10 is used for detecting whether the accessed device has a fast charging function through the second uplink port 2, and when detecting that the device has a fast charging function, the PD control chip 10 feeds back a second signal to the second fast charging protocol chip 23, the second fast charging protocol chip 23 controls the conduction of the second switching tube circuit 22 according to the second signal, and the conduction of the second switching tube circuit 22 is used for outputting the power input by the power interface 9 to the second uplink port 2, so as to output the fast charging power to the device.
Based on this, when the power interface 9 is powered on, the PD control chip 10 can output a fast charging power to the first device and the second device through the first fast charging protocol chip 13 and the second fast charging protocol chip 23, respectively. Specifically, the PD control chip 10 may adopt a FL7112 chip, and the first and second fast charging protocol chips 13 and 23 may adopt SC8886 chips.
Specifically, the first switching tube circuit 12 may include one or more first switching tubes, and the gate is connected to the first fast charging protocol chip 13, the source is connected to the first uplink port 1, and the drain is connected to the power interface 9, so that the first fast charging protocol chip 13 may charge the device by controlling the conduction of the first switching tube. The second switch tube circuit 22 may include one or more second switch tubes, and the gate is connected to the second fast charging protocol chip 23, the source is connected to the second uplink port 2, and the drain is connected to the power interface 9, so that the second fast charging protocol chip 23 may charge the second device by controlling the conduction of the second switch tube.
Referring to fig. 3, in an embodiment, the expansion module 8 further includes a video switch 82 electrically connected to the controller 7, the first upstream port 1 and the second upstream port 2, respectively, and the expansion module 8 includes a first video interface 823 electrically connected to the video switch 82. The controller 7 further outputs a first switch signal to the video switch 82 according to the key signal, and the video switch 82 switches the expansion module 8 to the first uplink port 1 or the second uplink port 2 according to the first switch signal, that is, the video signal output by the first device is output to the display screen through the first uplink port 1, the video switch 82 and the first video interface 823 for playing, or the video signal output by the second device is output to the display screen through the second uplink port 2, the video switch 82 and the first video interface 823 for playing. This enables switching of video by the switching key 71.
In an embodiment, a video converter 821 is connected between the first video interface 823 and the video switch 82, the first video interface 823 is an HDMI interface, and the video converter 821 is configured to convert an input DP signal into an HDMI signal and output the HDMI signal from the HDMI interface.
In one embodiment, the expansion module 8 further includes a DP interface 822 electrically connected to the video converter 821. In this embodiment, the video converter 821 is used to divide the DP video signal outputted from the video switch 82 into two paths, one path directly outputs the DP interface 822, and the other path converts the DP signal into an HDMI signal and outputs the HDMI signal from the HDMI interface, so as to expand two video interfaces for users to use.
In one embodiment, the expansion module 8 comprises: a third hub 81 electrically connected to the first USB switch 6, and a plurality of first USB interfaces 811 electrically connected to the third hub 81. The first USB interface 811 is used to connect a keyboard, a mouse, a USB disk, a printer, etc., and the first USB switch 6 connects the first hub 3 and the third hub 81 or connects the second hub 4 and the third hub 81 according to the first switch signal, so that the keyboard, the mouse, the USB disk, the first device or the second device can be switched to use by the switch key 71.
In an embodiment, the expansion module 8 further includes a second USB switch 83 electrically connected to the controller 7, the first hub 3 and the second hub 4, respectively, and the expansion module 8 further includes an audio chip 831 electrically connected to the second USB switch 83 and an audio interface 832 electrically connected to the audio chip 831.
In an embodiment, when the first uplink port 1 is used for connecting a notebook computer, a first signal switch 11 is connected between the video switch 82 and the first uplink port 1, the first signal switch 11 is further electrically connected to the first hub 3, the first signal switch 11 is configured to divide a signal output by the first uplink port 1 into a USB3.0 signal and a video signal, the first signal switch 11 is configured to transmit the USB3.0 signal to the first hub 3, and the first signal switch 11 is configured to transmit the video signal to the video switch 82. In addition, the USB2.0 signal output by the first uplink port 1 is directly and individually transmitted to the first hub 3, so that the equipment can realize the transmission of the USB2.0 signal, the USB3.0 signal and the video signal through the first uplink port 1, and the first uplink port 1 of the KVM switch apparatus of the present invention is suitable for the notebook computer.
In an embodiment, when the second uplink port 2 is used for connecting a notebook computer, a second signal switch 21 is connected between the video switch 82 and the second uplink port 2, the second signal switch 21 is further electrically connected to the second hub 4, the second signal switch 21 is configured to divide the signal output by the second uplink port 2 into a USB3.0 signal and a video signal, the second signal switch 21 is configured to transmit the USB3.0 signal to the second hub 4, and the second signal switch 21 is configured to transmit the video signal to the video switch 82. In addition, the USB2.0 signal output by the second uplink port 2 is directly and individually transmitted to the second hub 4, so that the second device can realize the transmission of the USB2.0 signal, the USB3.0 signal and the video signal through the second uplink port 2, and the second uplink port 2 of the KVM switch apparatus of the present invention is suitable for the notebook computer.
Specifically, in the above embodiment, the first USB switch 6 includes the first USB2.0 signal switch 62 and the first USB3.0 signal switch 63, the first USB2.0 signal switch 62 is electrically connected to the first hub 3, the second hub 4, and the third hub 81, respectively, and the first USB3.0 signal switch 63 is electrically connected to the first hub 3, the second hub 4, and the third hub 81, respectively. The first USB2.0 signal switch 62 is used for switching a set of USB2.0 signals output by the first hub 3 and the second hub 4, and the first USB3.0 signal switch 63 is used for switching a set of USB3.0 signals output by the first hub 3 and the second hub 4.
The KVM switch further comprises a first power circuit 91 electrically connected to the power interface 9. The first power circuit 91 is configured to rectify, filter and convert a first power input from the power interface 9, and then electrically connect the first power to the controller 7, the first signal switch 11, the second signal switch 21, the video switch 82, the first USB2.0 signal switch 62, the second USB3.0 signal switch, the first hub 3, the second hub 4, the third hub 81, the first USB interface 811, the controller 7, the first video interface 823, the second video interface, the audio chip 831, and the mutual copy chip 5.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A KVM switch with data inter-copy function, comprising: the device comprises a first uplink port, a second uplink port, a switch key, a controller electrically connected with the switch key, a first concentrator electrically connected with the first uplink port, a second concentrator electrically connected with the second uplink port, mutually copied chips electrically connected with the first concentrator and the second concentrator respectively, a first USB switcher electrically connected with the first concentrator and the second concentrator respectively, and an expansion module electrically connected with the first USB switcher;
the first uplink port is used for being connected with a first device, the second uplink port is used for being connected with a second device, the controller is used for detecting a key signal of the switching key and outputting a first switch signal to the first USB switcher according to the key signal, and the first USB switcher conducts the expansion module with the first concentrator or the second concentrator according to the first switch signal;
the expansion module is used for connecting a mouse and a keyboard, the expansion module is used for transmitting electric signals input by the mouse and the keyboard to a first USB switcher, the first USB switcher is used for transmitting signals input by the expansion module to a first hub or a second hub, the first hub is used for outputting the signals input by the first USB switcher to a first device through a first uplink port, and the second hub is used for outputting the signals input by the first USB switcher to a second device through a second uplink port;
when data of the first device is copied to the second device, the expansion module is electrically connected with the first hub through the first USB switcher, a mouse or a keyboard inputs a first electric signal for executing a data mutual copying instruction, the first electric signal is transmitted to the first device through the expansion module, the first USB switcher, the first hub and the first uplink port in sequence, and the first device transmits data to be copied to the second device through the first uplink port, the first hub, the mutual copying chip, the second hub and the second uplink port in sequence according to the first electric signal;
or, when the data of the second device is copied to the first device, the expansion module is electrically connected with the second hub through the first USB switch, a second electrical signal used for executing a data mutual copying instruction is input by a mouse or a keyboard, the second electrical signal is sequentially transmitted to the second device through the expansion module, the first USB switch, the second hub and the second uplink port, and the second device transmits the data to be copied to the first device through the second uplink port, the second hub, the mutual copying chip, the first hub and the first uplink port in sequence according to the second electrical signal.
2. The KVM switch with data inter-copy function of claim 1, wherein the expansion module further comprises a video switch electrically connected to the controller, the first uplink port and the second uplink port, respectively, and the expansion module comprises a first video interface electrically connected to the video switch.
3. The KVM switch with data inter-copy function according to claim 2, wherein said expansion module comprises: the third hub is electrically connected with the first USB switcher, and the plurality of first USB interfaces are electrically connected with the third hub.
4. The KVM switch with data inter-copy function according to claim 3, wherein the expansion module further comprises a second USB switch electrically connected to the controller, the first hub and the second hub respectively, the expansion module further comprises an audio chip electrically connected to the second USB switch and an audio interface electrically connected to the audio chip.
5. The KVM switch with the data inter-copy function according to claim 4, wherein a video converter is connected between the first video interface and the video switch, and the first video interface is an HDMI interface.
6. The KVM switch with data inter-copy function according to claim 5, wherein said expansion module further comprises a DP interface electrically connected to a video converter.
7. The KVM switch with the data inter-copy function as claimed in claim 6, wherein when the first uplink port is used for connecting a notebook computer, a first signal switch is connected between the video switch and the first uplink port, the first signal switch is further electrically connected to the first hub, the first signal switch is configured to split the signal output from the first uplink port into a USB3.0 signal and a video signal, the first signal switch is configured to transmit the USB3.0 signal to the first hub, the USB2.0 signal of the first uplink port is transmitted to the first hub, and the first signal switch is configured to transmit the video signal to the video switch.
8. The KVM switch with the data inter-copy function as claimed in claim 7, wherein when the second uplink port is used for connecting a notebook computer, a second signal switch is connected between the video switch and the second uplink port, the second signal switch is further electrically connected to the second hub, the second signal switch is configured to split the signal output from the second uplink port into a USB3.0 signal and a video signal, the second signal switch is configured to transmit the USB3.0 signal to the second hub, the USB2.0 signal of the second uplink port is transmitted to the second hub, and the second signal switch is configured to transmit the video signal to the video switch.
9. The KVM switch with data inter-copy function according to claim 8, wherein said first USB switch comprises a first USB2.0 signal switch and a first USB3.0 signal switch, said first USB2.0 signal switch is electrically connected to the first hub, the second hub and the third hub respectively, said first USB3.0 signal switch is electrically connected to the first hub, the second hub and the third hub respectively.
10. The KVM switch with data inter-copy function of claim 9, further comprising a power interface and a first power circuit electrically connected to the power interface, wherein the first power circuit is configured to rectify, filter and convert a first power input from the power interface and then electrically connect the rectified, filtered and converted power to the controller, the first signal switch, the second signal switch, the video switch, the first USB2.0 signal switch, the second USB3.0 signal switch, the first hub, the second hub, the third hub, the first USB interface, the controller, the first video interface, the second video interface, the audio chip and the inter-copy chip, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211173379.7A CN115494972B (en) | 2022-09-26 | 2022-09-26 | KVM switch with data cross copy function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211173379.7A CN115494972B (en) | 2022-09-26 | 2022-09-26 | KVM switch with data cross copy function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115494972A true CN115494972A (en) | 2022-12-20 |
| CN115494972B CN115494972B (en) | 2023-12-29 |
Family
ID=84470427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211173379.7A Active CN115494972B (en) | 2022-09-26 | 2022-09-26 | KVM switch with data cross copy function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115494972B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672139A (en) * | 2002-07-26 | 2005-09-21 | 摩托罗拉公司 | Dual-role compatible USB hub device and method |
| EP1734454A2 (en) * | 2001-11-09 | 2006-12-20 | Aten International Co., Ltd. | Signal switch for console and peripheral devices |
| CN201222250Y (en) * | 2008-06-12 | 2009-04-15 | 安国国际科技股份有限公司 | Multicomputer switching device with data transmission function between computers |
| CN102207926A (en) * | 2010-03-30 | 2011-10-05 | 联想(北京)有限公司 | Computer and method for realizing coupling between computers |
| CN204559596U (en) * | 2014-12-31 | 2015-08-12 | 林海鹏 | A kind of data sharing hub |
| CN111309157A (en) * | 2019-12-31 | 2020-06-19 | 湖南中普显控电子科技有限公司 | Multifunctional KVM switching device supporting computer expansion mode output |
| US20200233824A1 (en) * | 2017-10-13 | 2020-07-23 | Guangdong Gopod Group Holding Co., Ltd. | Interfaces switching circuit and device |
| CN211857464U (en) * | 2020-05-19 | 2020-11-03 | 深圳市绿联科技有限公司 | Switching circuit and switching device used among multiple devices |
| CN214042270U (en) * | 2021-01-25 | 2021-08-24 | 深圳智尚视讯科技有限公司 | KVM switch based on Type-C port |
| CN214253055U (en) * | 2020-12-21 | 2021-09-21 | 深圳市海盈智联实业有限公司 | Docking station |
| CN113778923A (en) * | 2021-08-26 | 2021-12-10 | 深圳市显盈科技股份有限公司 | Multifunctional electronic equipment |
| CN114157898A (en) * | 2021-11-15 | 2022-03-08 | 深圳市华胜软件技术有限公司 | Signal switching system and signal switching method |
| CN217159868U (en) * | 2022-01-20 | 2022-08-09 | 深圳市海盈智联实业有限公司 | Multifunctional video expansion device |
-
2022
- 2022-09-26 CN CN202211173379.7A patent/CN115494972B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1734454A2 (en) * | 2001-11-09 | 2006-12-20 | Aten International Co., Ltd. | Signal switch for console and peripheral devices |
| CN1672139A (en) * | 2002-07-26 | 2005-09-21 | 摩托罗拉公司 | Dual-role compatible USB hub device and method |
| CN201222250Y (en) * | 2008-06-12 | 2009-04-15 | 安国国际科技股份有限公司 | Multicomputer switching device with data transmission function between computers |
| CN102207926A (en) * | 2010-03-30 | 2011-10-05 | 联想(北京)有限公司 | Computer and method for realizing coupling between computers |
| CN204559596U (en) * | 2014-12-31 | 2015-08-12 | 林海鹏 | A kind of data sharing hub |
| US20200233824A1 (en) * | 2017-10-13 | 2020-07-23 | Guangdong Gopod Group Holding Co., Ltd. | Interfaces switching circuit and device |
| CN111309157A (en) * | 2019-12-31 | 2020-06-19 | 湖南中普显控电子科技有限公司 | Multifunctional KVM switching device supporting computer expansion mode output |
| CN211857464U (en) * | 2020-05-19 | 2020-11-03 | 深圳市绿联科技有限公司 | Switching circuit and switching device used among multiple devices |
| CN214253055U (en) * | 2020-12-21 | 2021-09-21 | 深圳市海盈智联实业有限公司 | Docking station |
| CN214042270U (en) * | 2021-01-25 | 2021-08-24 | 深圳智尚视讯科技有限公司 | KVM switch based on Type-C port |
| CN113778923A (en) * | 2021-08-26 | 2021-12-10 | 深圳市显盈科技股份有限公司 | Multifunctional electronic equipment |
| CN114157898A (en) * | 2021-11-15 | 2022-03-08 | 深圳市华胜软件技术有限公司 | Signal switching system and signal switching method |
| CN217159868U (en) * | 2022-01-20 | 2022-08-09 | 深圳市海盈智联实业有限公司 | Multifunctional video expansion device |
Non-Patent Citations (3)
| Title |
|---|
| SHUPAN LI等: "COW-IMM: A Novel Integrity Measurement Method Based on Copy-on-Write for File in Virtual Machine", IEEE ACCESS * |
| 廖忠: "USB在远程数据采集中的应用", 计算机与现代化, no. 01 * |
| 马光华;郑建立;: "基于FPGA和ARM9微控制器的KVM交换机设计", 仪表技术, no. 09 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115494972B (en) | 2023-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2012097615A2 (en) | Multi-purpose connector for multiplexing headset interface into high definition video and audio interface and handheld electronic device | |
| WO2013097356A1 (en) | Hdmi multiplexing method, hdmi, and hdmi-equipped device | |
| KR20200001747U (en) | Display Driver Board Card With Multiple TYPE-C Full-Featured Interfaces | |
| TW201418987A (en) | Electronic device with thunderbolt interface, connecting method thereof and docking apparatus | |
| WO2019071579A1 (en) | Interface switching circuit and device | |
| CN103218049A (en) | Keyboard with digital audio | |
| CN102541768A (en) | Mobile terminal, state shifting method and display method | |
| CN210723605U (en) | Interface conversion device and converter | |
| WO2018058946A1 (en) | Method and device for signal switching, and computer storage medium | |
| TW201246724A (en) | Data transmitting system and peripheral device thereof | |
| KR102006068B1 (en) | Device for converting interface | |
| CN212846570U (en) | Type-C interface circuit and touch-control all-in-one | |
| CN212517830U (en) | Multifunctional switching device | |
| CN115494972B (en) | KVM switch with data cross copy function | |
| CN115203108B (en) | Expansion device supporting downlink port PD output | |
| US20170046297A1 (en) | Thunderbolt Sharing Console and Switching Method Thereof | |
| CN216979751U (en) | Multifunctional docking station | |
| CN212809197U (en) | Multifunctional docking station supporting multi-USB-C switching | |
| CN202267960U (en) | Debugging device for universal asynchronous receiver/transmitter | |
| CN212659071U (en) | Docking station | |
| CN210155656U (en) | Interactive flat plate with Type-C interface and interactive flat plate system | |
| CN113778923A (en) | Multifunctional electronic equipment | |
| CN107402898B (en) | Information processing method and electronic equipment | |
| TWI702854B (en) | Audio playing apparatus and audio transmission circuit | |
| CN102566745B (en) | Mobile terminal and state switching method for mobile terminal |
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 |