KVM multi-line extender and computer system
By designing the transmit and receive port components of the KVM multi-line extender, the problems of increased cost and inconvenient maintenance when increasing the number of connected computers in traditional KVM extenders are solved, achieving efficient signal transmission and simplified maintenance for multiple computers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG MT-VIKI ELECTRONICS TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional KVM extenders require rewiring or equipment replacement when increasing the number of connected computers, leading to increased costs and inconvenient maintenance.
Design a KVM multi-line extender, including a transmitting port component, a transmission medium, and a receiving port component. The transmitting port component is used to receive and encode signals from the host computer. The receiving port component has multiple outputs and can decode the signals and output them to any one or more slave computers, avoiding the need for additional cables and device connections.
It enables signal transmission from multiple computers without adding extra cables and components, reducing costs and simplifying the maintenance process.
Smart Images
Figure CN224232157U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of computer extension, and more particularly to a KVM multi-route extender and a computer system. Background Technology
[0002] A KVM extender (Keyboard, Video, Mouse Extender) is a device that extends the keyboard, video, and mouse (KVM) signals of a computer from the computer host to a greater distance. It is generally designed to ensure signal transmission without attenuation over long distances. With the development of information technology, the need for multiple computers to share a single set of peripherals is increasing. KVM extenders, as a key device, can effectively solve this problem. However, traditional KVM extenders have some shortcomings in practical use. For example, when users need to increase the number of connected computers, it is often necessary to rewire or replace the equipment, leading to increased costs and inconvenient maintenance. Summary of the Invention
[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a KVM multi-route extender and computer system to solve the problem that increasing the number of connected computers in a KVM extender leads to increased costs and inconvenient maintenance.
[0004] The technical solution of this utility model is as follows:
[0005] A KVM multi-route extender includes:
[0006] A transmitting port component is used to connect to the host computer. The transmitting port component is used to receive KVM signals output by the host computer, encode them, and then output them.
[0007] Transmission medium;
[0008] A receiving port component is connected to the transmitting port component through the transmission medium. The receiving port component has multiple output terminals, each of which is used to connect to a slave computer. The receiving port component is used to decode the KVM signal output by the transmitting port component and then output it to any one or more slave computers.
[0009] Optionally, the transmitting port component includes:
[0010] The first input interface is connected to the host computer;
[0011] The first output interface is connected to the transmission medium;
[0012] The signal processing chip has its input terminal connected to the first input interface and its output terminal connected to the first output interface. The signal processing chip is used to encode and process the KVM signal output by the host computer and then output it to the receiving port component through the transmission medium.
[0013] Optionally, the receiving port component includes:
[0014] The second input interface is connected to the transmission medium.
[0015] Multiple second output interfaces, which are used for one-to-one connection of multiple slave computers;
[0016] The signal decoding chip has its input terminal connected to the second input interface and its output terminal connected to multiple second output interfaces. The signal decoding chip is used to decode the KVM signal output by the transmitting port component and output it to any one or more slave computers.
[0017] Optionally, the KVM multi-route extender further includes:
[0018] A switching button is connected to the receiving port component. The switching button is used to output a switching signal to the receiving port component when triggered by the user. The receiving port component is used to output the KVM signal output by the sending port component to any one or more slave computers according to the switching signal.
[0019] Optionally, the KVM multi-route extender further includes:
[0020] Multiple indicator lights are connected to the receiving port component, and the multiple indicator lights are configured one-to-one with multiple slave computers. The receiving port component is used to control the indicator light corresponding to the slave computer to light up when outputting KVM signals to the slave computer.
[0021] Optionally, the transmission medium is any one of a network cable, an optical fiber, or a wireless antenna.
[0022] Optionally, the KVM multi-route extender further includes:
[0023] A power supply circuit is provided, the output of which is connected to the power input of the transmitting port component and the power input of the receiving port component. The power supply circuit is used to provide operating voltage to the transmitting port component and the receiving port component.
[0024] Optionally, the KVM multi-route extender further includes:
[0025] A signal isolator is connected to the receiving port assembly and is used to isolate the output signals of multiple output terminals of the receiving port assembly.
[0026] This utility model also proposes a computer system, including a host computer, multiple slave computers, and a KVM multi-route extender as described above. The host computer is connected to the transmit port component in the KVM multi-route extender, and the multiple slave computers are connected to the receive port component in the KVM multi-route extender.
[0027] This utility model's technical solution comprises a KVM multi-line extender consisting of a transmitting port component, a transmission medium, and a receiving port component. The transmitting port component connects to the host computer, receives the KVM signal output from the host computer, encodes it, and then outputs it to the receiving port component via the transmission medium. The receiving port component connects to the transmitting port component via the transmission medium and has multiple output terminals, each for connecting to a slave computer. The receiving port component decodes the KVM signal output from the transmitting port component and outputs it to any one or more slave computers. Thus, this KVM multi-line extender can receive the KVM signal output from the host computer via the receiving port component and output it to any one or more slave computers via multiple output terminals, eliminating the need for additional cables and components to connect slave computers. This solves the problem of increased cost and maintenance inconvenience when increasing the number of connected computers in a KVM extender. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0029] Figure 1 This is a functional module diagram of an embodiment of the KVM multi-route extender of this utility model.
[0030] Figure 2 This is a functional module diagram of a transmission port component in an embodiment of the KVM multi-route extender of this utility model.
[0031] Figure 3 This is a functional module diagram of the receiver port component in an embodiment of the KVM multi-route extender of this utility model.
[0032] Figure 4 This is a functional module schematic diagram of another embodiment of the KVM multi-route extender of this utility model.
[0033] Figure 5 This is a functional module schematic diagram of another embodiment of the KVM multi-route extender of this utility model.
[0034] Explanation of reference numerals in the attached drawings: 10, Transmitting port component; 11, First input interface; 12, Signal processing chip; 13, First output interface; 20, Transmission medium; 30, Receiving port component; 31, Second input interface; 32, Signal decoding chip; 33, Second output interface; 40, Switch button; 50, Power supply circuit; 60, Indicator light; 70, Signal isolator. Detailed Implementation
[0035] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0036] In the implementation methods and claims, unless otherwise specified in the text, the terms "a," "an," "the," and "the" may also include plural forms. If the embodiments of this utility model involve descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.
[0037] It should be further understood that the term "comprising" as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when an element is referred to as "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements present. Furthermore, "connected" or "coupled" as used herein can include wireless connections or wireless coupling. The term "and / or" as used herein includes all or any unit and all combinations of one or more associated listed items.
[0038] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.
[0039] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0040] A KVM extender (Keyboard, Video, Mouse Extender) is a device that extends the keyboard, video, and mouse (KVM) signals of a computer from the computer host to a greater distance. It is generally designed to ensure signal transmission without attenuation over long distances. With the development of information technology, the need for multiple computers to share a single set of peripherals is increasing. KVM extenders, as a key device, can effectively solve this problem. However, traditional KVM extenders have some shortcomings in practical use. For example, when users need to increase the number of connected computers, it is often necessary to rewire or replace the equipment, leading to increased costs and inconvenient maintenance.
[0041] To address the aforementioned problems, this invention proposes a KVM multi-route extender.
[0042] Reference Figure 1 In one embodiment, the KVM multi-route extender includes:
[0043] Transmitting port component 10 is used to connect to the host computer. The transmitting port component 10 is used to receive the KVM signal output by the host computer, encode it, and then output it.
[0044] Transmission medium 20;
[0045] The receiving port component 30 is connected to the transmitting port component 10 through the transmission medium 20. The receiving port component 30 has multiple output terminals, each of which is used to connect to a slave computer. The receiving port component 30 is used to decode the KVM signal output by the transmitting port component 10 and output it to any one or more slave computers.
[0046] In this embodiment, the transmitting port component 10 can receive signals from the computer, including video signals (such as HDMI, DVI, VGA, etc.), keyboard input, and mouse input. The transmitting port component 10 then integrates and encodes the KVM signal so that it can be sent to the receiving port component 30 along with the video signal through the transmission medium 20. The transmitting port component 10 can also process the input video signal, possibly including signal enhancement, format conversion, and other operations, to ensure that the signal can be transmitted stably and with high quality over long distances. The transmitting port component 10 can also be provided with a connection port for connecting a keyboard, mouse, and monitor to control the host computer. The transmission medium 20 can be a network cable or optical fiber, etc. The receiving port component 30 receives KVM signals from the transmitting port component 10, decodes and restores these KVM signals, and then outputs them to the corresponding devices, i.e., one or more slave computers, to ensure that the monitor can display images correctly and to guarantee the clarity and color accuracy of the images. Multiple output ports can be set for multiple slave computers. A signal distributor can be set to split the KVM signals into multiple outputs for outputting to multiple slave computers. The receiving port component 30 can also be equipped with connection ports for connecting a keyboard, mouse, and monitor to control the slave computers. In this embodiment, the KVM multi-line extender can receive KVM signals output from the master computer through the receiving port component 30 and output them to any one or more slave computers through multiple output ports. When there are multiple slave computers, no additional cables or devices are needed to connect them.
[0047] This utility model's technical solution comprises a KVM multi-line extender consisting of a transmitting port component 10, a transmission medium 20, and a receiving port component 30. The transmitting port component 10 connects to the host computer, receives the KVM signal output from the host computer, encodes it, and then outputs it to the receiving port component 30 via the transmission medium 20. The receiving port component 30 is connected to the transmitting port component 10 via the transmission medium 20 and has multiple output terminals, each for connecting to a slave computer. The receiving port component 30 can decode the KVM signal output from the transmitting port component 10 and output it to any one or more slave computers. Thus, the KVM multi-line extender in this solution can receive the KVM signal output from the host computer via the receiving port component 30 and output it to any one or more slave computers via multiple output terminals, eliminating the need for additional cables and components to connect slave computers. This solves the problem of increased cost and inconvenient maintenance when the number of connected computers in a KVM extender increases.
[0048] Reference Figure 2 In one embodiment, the transmitting port component 10 includes:
[0049] The first input interface 11 is connected to the host computer;
[0050] The first output interface 13 is connected to the transmission medium 20;
[0051] The signal processing chip 12 has its input terminal connected to the first input interface 11 and its output terminal connected to the first output interface 13. The signal processing chip 12 is used to encode and process the KVM signal output by the host computer and then output it to the receiving port component 30 through the transmission medium 20.
[0052] In this embodiment, the first input interface 11 can receive keyboard, video, and mouse signals from the host computer. For keyboard and mouse signals, it can identify key presses, mouse movements, and clicks; for video signals, it collects image data output by the computer's graphics card, with different acquisition methods for different types of interfaces (such as VGA, DVI, HDMI, etc.). The signal processing chip 12 can perform encoding, modulation, and compression on the acquired KVM signals. Encoding converts the original signal into a format suitable for transmission on the transmission medium 20; modulation loads the signal onto a carrier wave; and compression reduces the amount of data and improves transmission efficiency. The first output interface 13 can send the processed KVM signal to the transmission medium 20. The first output interface 13 varies depending on the transmission medium 20. For wired transmission, an RJ45 interface can be used; for fiber optic transmission, a fiber optic interface is used.
[0053] Reference Figure 3 In one embodiment, the receiving port component 30 includes:
[0054] The second input interface 31 is connected to the transmission medium 20;
[0055] Multiple second output interfaces 33 are provided for one-to-one connection of multiple slave computers;
[0056] The signal decoding chip 32 has its input end connected to the second input interface 31 and its output end connected to multiple second output interfaces 33. The signal decoding chip 32 is used to decode the KVM signal output by the transmitting port component 10 and output it to any one or more slave computers.
[0057] In this embodiment, the second input interface 31 is connected to the transmission medium 20 and can receive KVM signals output from the transmitting port component 10. Its type corresponds to the transmission interface of the transmitting end, such as an RJ45 interface or an optical fiber interface. The signal decoding chip 32 can decode, demodulate, and restore the received signal. It restores the encoded signal to the original keyboard, video, and mouse signals, ensuring signal accuracy and integrity. Multiple second output interfaces 33 correspond to multiple slave computers; the signals output by the signal decoding chip 32 can be output to any one or more slave computers through these interfaces.
[0058] Reference Figure 4 In one embodiment, the KVM multi-route extender further includes:
[0059] A switching button 40 is connected to the receiving port component 30. The switching button 40 is used to output a switching signal to the receiving port component 30 when triggered by the user. The receiving port component 30 is used to output the KVM signal output by the transmitting port component 10 to any one or more slave computers according to the switching signal.
[0060] In this embodiment, multiple switching buttons 40 are provided for multiple slave computers. The switching buttons 40 can be used to switch the KVM signal output. For example, when a switching button 40 is pressed, the receiving port component 30 can output a KVM signal to the slave computer corresponding to the switching button 40. The switching method of the output KVM signal can also be implemented through virtual buttons or other methods.
[0061] Furthermore, referring to Figure 4 In one embodiment, the KVM multi-route extender further includes:
[0062] Multiple indicator lights 60 are connected to the receiving port component 30. Each indicator light 60 is configured one-to-one with a multiple slave computer. The receiving port component 30 is used to control the indicator light 60 corresponding to the slave computer to light up when outputting a KVM signal to the slave computer.
[0063] In this embodiment, multiple indicator lights 60 are configured to correspond to multiple slave computers. Thus, when the receiving port component 30 outputs a KVM signal to the slave computer, it controls the corresponding indicator light 60 to light up. Users can observe the status of the indicator lights 60 to determine which slave computer is receiving the signal.
[0064] In one embodiment, the transmission medium 20 is any one of a network cable, an optical fiber, or a wireless antenna.
[0065] In this embodiment, the network cable can be Cat5e or Cat6, which is low-cost and easy to install. It can effectively transmit KVM signals over a certain distance (generally around 100 meters). Fiber optic cables, on the other hand, have advantages such as high transmission speed, strong anti-interference capability, and long transmission distance, making them suitable for applications with high requirements for signal quality and transmission distance, such as large data centers and long-distance monitoring. The wireless antenna can achieve signal transmission through a built-in 2.4GHz / 5GHz Wi-Fi module or a dedicated RF chip.
[0066] Reference Figure 4 In one embodiment, the KVM multi-route extender further includes:
[0067] A power supply circuit 50 is provided, the output of which is connected to the power input of the transmitting port assembly 10 and the power input of the receiving port assembly 30. The power supply circuit 50 is used to provide operating voltage to the transmitting port assembly 10 and the receiving port assembly 30.
[0068] In this embodiment, the power supply circuit 50 can be implemented using a DC-DC circuit or a power chip, and can be respectively disposed in the transmitting port component 10 and the receiving port component 30. The power supply circuit 50 can convert the external power supply voltage into a suitable operating voltage for the transmitting port component 10 and the receiving port component 30, so as to prevent the transmitting port component 10 and the receiving port component 30 from receiving a high operating voltage that would damage the device, or from receiving a low operating voltage that would prevent the device from working properly; the power supply circuit 50 can also have a built-in battery pack to provide operating voltage to the transmitting port component 10 and the receiving port component 30.
[0069] Reference Figure 5 In one embodiment, the KVM multi-route extender further includes:
[0070] A signal isolator 70 is connected to the receiving port assembly 30 and is used to isolate the output signals of multiple output terminals of the receiving port assembly 30.
[0071] In this embodiment, the signal isolator 70 can effectively suppress noise caused by electromagnetic interference between devices or ground loops, ensuring that each signal received from the computer is clear and stable. Furthermore, the signal isolator 70 can distribute the input signal to multiple output channels, ensuring that each device receives the same signal while maintaining signal integrity and quality. By providing isolation and protection, the signal isolator 70 can improve the reliability of the entire system and reduce system crashes or errors caused by signal interference or device malfunctions.
[0072] This utility model also proposes a computer system, characterized in that it includes a host computer, multiple slave computers, and a KVM multi-route extender as described above. The host computer is connected to the transmitting port component 10 of the KVM multi-route extender, and the multiple slave computers are connected to the receiving port component 30 of the KVM multi-route extender. It is understood that since the computer system of this utility model uses the aforementioned KVM multi-route extender, the embodiments of this utility model's computer system include all the technical solutions of all embodiments of the aforementioned KVM multi-route extender, and the achieved technical effects are completely identical, and will not be repeated here. The computer system can be used in scenarios such as classroom teaching or conference presentations.
[0073] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. A KVM multi-route extender, characterized in that, include: A transmitting port component is used to connect to the host computer. The transmitting port component is used to receive KVM signals output by the host computer, encode them, and then output them. Transmission medium; A receiving port component is connected to the transmitting port component through the transmission medium. The receiving port component has multiple output terminals, each of which is used to connect to a slave computer. The receiving port component is used to decode the KVM signal output by the transmitting port component and then output it to any one or more slave computers.
2. The KVM multi-route extender as described in claim 1, characterized in that, The transmitting port component includes: The first input interface is connected to the host computer; The first output interface is connected to the transmission medium; The signal processing chip has its input terminal connected to the first input interface and its output terminal connected to the first output interface. The signal processing chip is used to encode and process the KVM signal output by the host computer and then output it to the receiving port component through the transmission medium.
3. The KVM multi-route extender as described in claim 1, characterized in that, The receiving port component includes: The second input interface is connected to the transmission medium. Multiple second output interfaces, which are used for one-to-one connection of multiple slave computers; The signal decoding chip has its input terminal connected to the second input interface and its output terminal connected to multiple second output interfaces. The signal decoding chip is used to decode the KVM signal output by the transmitting port component and output it to any one or more slave computers.
4. The KVM multi-route extender as described in claim 1, characterized in that, The KVM multi-route extender also includes: A switching button is connected to the receiving port component. The switching button is used to output a switching signal to the receiving port component when triggered by the user. The receiving port component is used to output the KVM signal output by the sending port component to any one or more slave computers according to the switching signal.
5. The KVM multi-path extender as described in claim 4, characterized in that, The KVM multi-route extender also includes: Multiple indicator lights are connected to the receiving port component, and the multiple indicator lights are configured one-to-one with multiple slave computers. The receiving port component is used to control the indicator light corresponding to the slave computer to light up when outputting KVM signals to the slave computer.
6. The KVM multi-route extender as described in claim 1, characterized in that, The transmission medium can be any one of a network cable, optical fiber, or wireless antenna.
7. The KVM multi-path extender as described in claim 1, characterized in that, The KVM multi-route extender also includes: A power supply circuit is provided, the output of which is connected to the power input of the transmitting port component and the power input of the receiving port component. The power supply circuit is used to provide operating voltage to the transmitting port component and the receiving port component.
8. The KVM multi-route extender as described in claim 1, characterized in that, The KVM multi-route extender also includes: A signal isolator is connected to the receiving port assembly and is used to isolate the output signals of multiple output terminals of the receiving port assembly.
9. A computer system, characterized in that, It includes a host computer, multiple slave computers, and a KVM multi-route extender as described in any one of claims 1-8, wherein the host computer is connected to a transmit port component in the KVM multi-route extender, and the multiple slave computers are connected to a receive port component in the KVM multi-route extender.