Novel double-screen KVM transceiver

Abstract

The utility model discloses a novel double-screen KVM (Keyboard Video Mouse) transceiver, which comprises a KVM transmitter and a KVM receiver, the KVM transmitter comprises a first machine body, a first SoC chip, an audio analog-to-digital conversion chip and two HDMI receiving chips, wherein the first SoC chip, the audio analog-to-digital conversion chip and the two HDMI receiving chips are installed in the first machine body. The KVM receiver comprises a second machine body, a second SoC chip, an audio digital-to-analog conversion chip and two HDMI sending chips, wherein the second SoC chip, the audio digital-to-analog conversion chip and the two HDMI sending chips are installed in the second machine body. The novel double-screen KVM transceiver can support transmission of two paths of HDMI video signals at the same time, one sending terminal can be connected with HDMI signals of double display cards of a computer, one receiving terminal can be connected with two display screens, cost is reduced, and the double-screen display function is achieved. Therefore, a user can connect the two displays and check and operate the content on the remote computer at the same time, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of audio and video transmission equipment, and more specifically to a novel dual-screen KVM transceiver. Background Art

[0002] At present, in today's modern computer applications, we often face the situation of performing multiple tasks at the same time, including but not limited to graphic design, video editing, data processing, etc. With the popularity of multitasking, the demand for dual-graphics computers is also increasing. Dual-graphics computers can provide higher graphics processing performance and meet users' needs for remote transmission and remote control of high-definition audio and video.

[0003] However, traditional KVM keyboard, video, and mouse transmitters have some limitations when remotely operating dual-graphics computers. Usually, their transmitter and receiver can only transmit one HDMI video signal, which means that if you want to remotely control a dual-graphics computer, you need two sets of KVM transmitters, which is relatively expensive and not very convenient to use.

[0004] Therefore, it is necessary to find a more practical and effective solution to reduce costs, facilitate operation, and ensure signal transmission quality. Utility Model Content

[0005] In view of this, the utility model provides a new dual-screen KVM transceiver, which can effectively solve the above problems and has higher flexibility and functionality. It enables users to remotely control dual-graphics computers more conveniently without additional equipment costs, which helps to improve users' work efficiency and experience.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A novel dual-screen KVM transceiver comprises: a KVM transmitter and a KVM receiver;

[0008] The KVM transmitter includes: a first body and a first SoC chip, an audio analog-to-digital conversion chip, and two HDMI receiving chips installed inside the first body; the first SoC chip is connected to the audio analog-to-digital conversion chip and the two HDMI receiving chips respectively;

[0009] The rear panel of the first body is provided with: two HDMI video input interfaces, a first audio input interface, a first USB interface, a first LC interface and a first RJ45 interface;

[0010] The input ends of the two HDMI receiving chips are connected to the two HDMI video input interfaces respectively; the input end of the audio analog-to-digital conversion chip is connected to the first audio input interface; the first USB interface, the first LC interface and the first RJ45 interface are all connected to the first SoC chip;

[0011] The KVM receiver comprises: a second body and a second SoC chip, an audio digital-to-analog conversion chip and two HDMI transmission chips installed inside the second body; the second SoC chip is connected to the audio digital-to-analog conversion chip and the two HDMI transmission chips respectively;

[0012] The rear panel of the second body is provided with: two HDMI video output interfaces, a second audio output interface, a second USB interface, a second LC interface and a second RJ45 interface;

[0013] The output ends of the two HDMI transmitting chips are correspondingly connected to the two HDMI video output interfaces; the input end of the audio digital-to-analog conversion chip is connected to the second audio output interface; the interiors of the second USB interface, the second LC interface and the second RJ45 interface are all connected to the second SoC chip.

[0014] Furthermore, the two HDMI receiving chips both support the HDMI 2.0 protocol and are used to be connected to the corresponding HDMI interfaces of two graphics cards of the computer via HDMI cables.

[0015] Furthermore, the first audio input interface is a 3.5mm audio jack, supports left and right stereo analog audio, and is used to connect to a 3.5mm audio jack of a computer audio interface via an audio cable.

[0016] Furthermore, the two HDMI transmitting chips both support the HDMI 2.0 protocol and are used to connect to the HDMI interfaces of the two display devices at the operator end through HDMI cables.

[0017] Furthermore, the second audio output interface is a 3.5mm audio jack, supports left and right stereo analog audio, and is used to connect to the headset of the operator end through an audio cable.

[0018] Furthermore, it is characterized in that two side surfaces of the first body and / or the second body have heat dissipation holes.

[0019] It can be seen from the above technical solutions that, compared with the prior art, the utility model discloses a new dual-screen KVM transceiver, which has the following advantages:

[0020] 1Dual-screen support: By installing two HDMI receiving chips and two HDMI transmitting chips in the KVM transmitter and receiver respectively, the device can simultaneously support the transmission of two HDMI video signals and realize dual-screen display function. This allows users to connect two monitors and view and operate the content on the remote computer at the same time, improving work efficiency.

[0021] 2. Audio and video transmission integration: By integrating the audio analog-to-digital conversion chip and the audio digital-to-analog conversion chip, the device can realize the analog-to-digital conversion, digitization, compression and decoding of audio signals, and transmit them together with the video signals. In this way, users can not only remotely operate the computer's image, but also realize remote audio transmission, making remote work or control more complete and convenient.

[0022] 3. Multiple interface support: The KVM transmitter and receiver of the device are equipped with USB interface, LC interface and RJ45 interface respectively, which can support the connection and control of multiple external devices, such as keyboard, mouse, printer, etc. At the same time, the RJ45 interface and LC interface can be used as the main and backup for each other, and can be used for network connection to realize remote control and data transmission.

[0023] 4 High-performance SoC chip: The transmitter and receiver are equipped with high-performance SoC chips, which can implement complex video and audio encoding and decoding algorithms, as well as the processing of network communication protocols, ensuring the stability and reliability of data transmission and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 This is a front view of the KVM transmitter structure provided by the utility model.

[0026] Figure 2 This is a rear view of the KVM transmitter structure provided by the utility model.

[0027] Figure 3 This is a front view of the KVM receiver structure provided by the utility model.

[0028] Figure 4 This is a rear view of the KVM receiver structure provided by the utility model.

[0029] Figure 5 This is a structural functional block diagram of the KVM transmitter provided by the utility model.

[0030] Figure 6 This is a structural functional block diagram of the KVM receiver provided by the utility model. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The utility model embodiment discloses a novel dual-screen KVM transceiver, comprising: a KVM transmitter and a KVM receiver; the basic implementation principle is: one transmitting terminal can be connected to the HDMI signal of the dual graphics cards of the computer, and one receiving terminal can be connected to two display screens, thereby reducing costs.

[0033] Reference Figure 1-2 As shown, the KVM transmitter includes: a first body 1, a first front panel 2, a first rear panel 3, a first heat dissipation hole 4, a first LCD display screen 5, a first status indicator light 6, a first DIP switch 7, an HDMI input interface 8, a first USB interface 9, a first audio input interface 10, a first audio output interface 11, a first RJ45 interface 12, a first LC interface 13 and a first power interface 14;

[0034] The first front panel 2 is fixedly mounted on the front surface of the first body 1, and the first LCD display screen 5, the first status indicator light 6, and the first dial switch 7 are fixedly mounted on the first front panel 2, and the three are in a centrally symmetrical structure. The first LCD display screen 5 can display the name, IP, version number and other information of the dual-screen KVM transmitter. The first status indicator light 6 can display the key states of the dual-screen KVM transmitter such as power-on, video connection, audio input and output connection, USB communication, network communication, etc. in real time. The first dial switch 7 can facilitate users to set various modes of the dual-screen KVM transmitter to suit different application scenarios;

[0035] First heat dissipation holes 4 are provided on both sides of the first body 1, so that the dual-screen KVM transmitter can better adjust the internal temperature when working;

[0036] A first rear panel 3 is fixedly mounted on the rear surface of the first housing 1, and two HDMI input interfaces 8 are provided on the left side of the first rear panel 3; a first USB interface 9 is provided near the HDMI input interface 8, and two audio interfaces are provided below the first USB interface 9, namely a first audio input interface 10 and a first audio output interface 11; a first RJ45 interface 12 and a first LC interface 13 are provided on one side of the first USB interface 9, and a first power interface 14 is fixedly provided below the first LC interface 13;

[0037] HDMI input interface 8 can support dual graphics card splicing, with a resolution of up to 4K x 2K3840*2160;

[0038] The first USB interface 9 is connected to the computer, and the dual-screen KVM transmitter sends the decoded keyboard and mouse signals to the computer via the first USB interface 9;

[0039] The first RJ45 interface 12 and the first LC interface 13 can simultaneously encode the video signal received by the HDMI input interface 8 and then send it to the dual-screen KVM receiver. The first RJ45 interface 12 and the first LC interface 13 can serve as mutual backup for the optical network.

[0040] The first LCD display screen 5, the first status indicator light 6, the first DIP switch 7, the first audio output interface 11 and the first power interface 14 are respectively connected to the built-in first SoC chip. The first power interface 14 is used to connect the power supply of the device. By connecting to the first SoC chip, the control of power management can be realized, including power on / off control, power consumption management, etc., to ensure the stable operation and energy saving effect of the device.

[0041] Among them, the HDMI receiving chip of the KVM transmitter has an HDMI video interface, supports HDMI2.0 protocol, and is used to connect to the HDMI interface of the computer's dual graphics cards via an HDMI cable.

[0042] The first audio input interface is a 3.5mm audio jack, which supports left and right stereo analog audio and is connected to the 3.5mm audio jack of the computer audio interface through an audio cable.

[0043] Reference Figure 3 , Figure 4 As shown, the KVM receiver includes: a second body 15, a second front panel 16, a second rear panel 17, a second heat dissipation hole 18, a second LCD display screen 19, a second status indicator light 20, a second DIP switch 21, an HDMI output interface 22, a second USB interface 23, a second audio input interface 24, a second audio output interface 25, a second RJ45 interface 26, a second LC interface 27 and a second power interface 28;

[0044] A second front panel 16 is fixedly mounted on the front surface of the second body 15, and a second LCD display screen 19, a second status indicator light 20, and a second dial switch 21 are fixedly mounted on the second front panel 16, and the three are in a centrally symmetrical structure. The second LCD display screen 19 can display the name, IP, version number and other information of the dual-screen KVM receiver. The second status indicator light 20 can display key states of the dual-screen KVM receiver such as power-on, video connection, audio input and output connection, USB communication, network communication, etc. in real time. The second dial switch 21 can facilitate users to set various modes of the dual-screen KVM receiver to suit different application scenarios;

[0045] Second heat dissipation holes 18 are provided on both sides of the second body 15, so that the dual-screen KVM receiver can better regulate the internal temperature when working;

[0046] A second rear panel 17 is fixedly mounted on the rear surface of the second housing 15, and two HDMI output interfaces 22 are provided on the upper left side of the second rear panel 17; two audio interfaces are provided on the lower side of the HDMI output interface 22, namely, a second audio input interface 24 and a second audio output interface 25; a second RJ45 interface 26 and a second LC interface 27 are provided on one side of the second audio output interface 25; three USB interfaces are provided on one side of the second LC interface 27; and a second power interface 28 is provided on the lower right side of the second rear panel 17;

[0047] The HDMI output interface 22 can be connected to two display interfaces, with a resolution of up to 4Kx 2K3840*2160;

[0048] The second USB interface 23 can be connected to USB devices such as a mouse, keyboard, and U disk. The dual-screen KVM receiver encodes the USB information and sends it to the dual-screen KVM transmitter, which can realize the remote transmission of USB signals;

[0049] The second RJ45 interface 26 and the second LC interface 27 can simultaneously receive the encoded signal of the dual-screen KVM transmitter, then decode the video, and send the video signal to the display through the HDMI output interface 22. The second RJ45 interface 26 and the second LC interface 27 can serve as mutual backup of the optical network.

[0050] Similarly, the second LCD display screen 19, the second status indicator light 20, the second DIP switch 21, the second audio output interface 25 and the second power interface 28 are respectively connected to the built-in second SoC chip. The first power interface 28 is used to connect the power supply of the device. By connecting to the second SoC chip, power management control can be achieved, including power on / off control, power consumption management, etc., to ensure stable operation and energy saving of the device.

[0051] Among them, the HDMI transmitting chips of the KVM transmitter all support the HDMI2.0 protocol and are used to connect to the HDMI interfaces of the two display devices on the operator side through HDMI cables.

[0052] The second audio input interface is a 3.5mm audio jack, which supports left and right stereo analog audio and is used to connect to the operator's headphones via an audio cable.

[0053] This new dual-screen KVM transceiver achieves technical effects such as dual-screen support, integrated audio and video transmission, multiple interface support and high-performance processing through innovative hardware design and integrated technology, providing users with a more convenient and efficient remote control and operation experience.

[0054] Reference Figure 5-6 As shown, the novel dual-screen KVM transceiver of the utility model includes a KVM transmitter and a KVM receiver. The KVM transmitter includes a first body and a first SoC chip, an audio analog-to-digital conversion chip, and two HDMI receiving chips installed inside the first body; the first SoC chip is connected to the audio analog-to-digital conversion chip and the two HDMI receiving chips respectively; the input ends of the two HDMI receiving chips are correspondingly connected to the two HDMI video input interfaces; the input end of the audio analog-to-digital conversion chip is connected to the first audio input interface; the first USB interface, the first LC interface, and the first RJ45 interface are all connected to the first SoC chip;

[0055] The KVM receiver includes: a second body and a second SoC chip, an audio digital-to-analog conversion chip and two HDMI transmitting chips installed inside the second body; the second SoC chip is respectively connected to the audio digital-to-analog conversion chip and the two HDMI transmitting chips; the output ends of the two HDMI transmitting chips are correspondingly connected to the two HDMI video output interfaces; the input end of the audio digital-to-analog conversion chip is connected to the second audio output interface; the interiors of the second USB interface, the second LC interface and the second RJ45 interface are all connected to the second SoC chip.

[0056] The transmitter and receiver are connected to their respective RJ45 interfaces and LC interfaces through network cables and optical fiber cables.

[0057] Reference Figure 5As shown, the functional block diagram of the KVM transmitter is as follows: converting the dual graphics card video signals of the PC host into two MIPI data interfaces through two HDMI2.0 receiving chips, and connecting the two MIPI data to the SoC; connecting the audio of the PC host to the audio analog-to-digital conversion chip, and outputting IIS data to the SoC; encoding and compressing the accessed video and audio signals through the SoC, the encoded signals require relatively less bandwidth during network transmission, and are more suitable for network transmission of audio and video signals, thereby reducing the data bit rate, reducing bandwidth resource occupation, and facilitating reliable transmission through the network, and finally outputting the signal through the RJ45 network port or optical port. While the SoC encoding module is encoding, it also decodes the USB control signal received through the RJ45 network port or optical port, and then transmits it to the PC host connected to the SoC through the USB interface.

[0058] Reference Figure 6 As shown in the figure, the functional block diagram of the KVM receiver is as follows: the receiver receives the network data transmitted from the transmitter through the optical fiber / RJ45 network port and inputs it into the SoC, then performs error correction, decoding, and decompression on the data to restore the ultra-clear audio and video signals. The video signals are then converted into two-way video signals through two HDMI2.0 transmission chips to output to the display device, and the IIS data is converted into audio signals through the audio digital-to-analog conversion chip to output to the speakers. The USB signals of the mouse, keyboard, and U disk are input into the SoC, which is then encoded and compressed by the SoC, and the encoded signals are output through the RJ45 network port or optical port.

[0059] Signals are sent and received through the KVM transmitter and KVM receiver. The dual-screen KVM transceiver of the utility model realizes the transmission of ultra-high-definition audio and video signals using network cables and optical fiber cables as the transmission medium, greatly extending the transmission distance of audio and video signals, and can simultaneously transmit two HDMI video signals, solving the problem of high user costs while ensuring the quality of signal transmission; on the basis of transmitting audio and video, it can realize the auxiliary function of remotely controlling the computer with the keyboard and mouse.

[0060] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0061] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A new dual-screen KVM transceiver, characterized in that: include: KVM transmitters and KVM receivers; The KVM transmitter includes: a first body and a first SoC chip, an audio analog-to-digital conversion chip, and two HDMI receiving chips installed inside the first body; the first SoC chip is connected to the audio analog-to-digital conversion chip and the two HDMI receiving chips respectively; The rear panel of the first body is provided with: two HDMI video input interfaces, a first audio input interface, a first USB interface, a first LC interface and a first RJ45 interface; The input ends of the two HDMI receiving chips are connected to the two HDMI video input interfaces respectively; the input end of the audio analog-to-digital conversion chip is connected to the first audio input interface; the first USB interface, the first LC interface and the first RJ45 interface are all connected to the first SoC chip; The KVM receiver comprises: a second body and a second SoC chip, an audio digital-to-analog conversion chip and two HDMI transmission chips installed inside the second body; the second SoC chip is connected to the audio digital-to-analog conversion chip and the two HDMI transmission chips respectively; The rear panel of the second body is provided with: two HDMI video output interfaces, a second audio output interface, a second USB interface, a second LC interface and a second RJ45 interface; The output ends of the two HDMI transmitting chips are correspondingly connected to the two HDMI video output interfaces; the input end of the audio digital-to-analog conversion chip is connected to the second audio output interface; the interiors of the second USB interface, the second LC interface and the second RJ45 interface are all connected to the second SoC chip.

2. A novel dual-screen KVM transceiver according to claim 1, characterized in that: The two HDMI receiving chips both support the HDMI 2.0 protocol and are used to be connected to the corresponding HDMI interfaces of two graphics cards of the computer via HDMI cables.

3. A novel dual-screen KVM transceiver according to claim 1, characterized in that: The first audio input interface is a 3.5mm audio jack, which supports left and right stereo analog audio and is connected to the 3.5mm audio jack of a computer audio interface via an audio cable.

4. A novel dual-screen KVM transceiver according to claim 1, characterized in that: The two HDMI transmitting chips both support the HDMI 2.0 protocol and are used to connect to the HDMI interfaces of the two display devices at the operator end through HDMI cables.

5. The novel dual-screen KVM transceiver according to claim 1, characterized in that: The second audio output interface is a 3.5mm audio jack, which supports left and right stereo analog audio and is used to connect to the operator's headphones via an audio cable.

6. A novel dual-screen KVM transceiver according to any one of claims 1 to 5, characterized in that: Both sides of the first body and / or the second body are provided with heat dissipation holes.

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