High-density and secure sdvoe transceiver

Abstract

The high-density, secure SDVoE transceiver is designed for the secure transmission and reception of audio-video signals over Ethernet networks up to 10 Gbps. It consists of a Main Card (1), equipped with at least an HDMI input and one HDMI output for managing high definition video signals, two USB ports for connecting peripherals, an SFP+ port for high-speed Ethernet communication and a chip for encoding and decoding SDVoE signals with minimal latency. The modular architecture allows the device to operate autonomously or to integrate with optional cards to expand features, including displaying videos directly on LED walls. Furthermore, the transceiver includes an implementation of the Hardware Defined Security (HDSec) system with hardware configurations via DIP switches to ensure signal security and protection and a unique control of configurations, making it highly versatile and secure in cybersecurity-sensitive applications.

Description

[0001] LEIBO. / 70e2025

[0002] “HIGH-DENSITY AND SECURE SDVOE TRANSCEIVER”

[0003] Description

[0004] Field of the invention

[0005] The invention relates to the field of infrastructure for the management and distribution of professional audio-video-control signals, with particular reference to high-guality, low-latency AV-over-IP transmission systems. In particular, the invention falls within the scope of devices that use SDVoE (Software Defined Video over Ethernet) technology and solutions for the advanced management of video and control signals (KVM) in professional, corporate and military environments, such as control rooms, meeting rooms eguipped with large format display systems (video walls and LED walls) or multimedia systems and, in general, workstations in environments that use KVM technology.

[0006] More specifically, the invention relates to an SDVoE transceiver with advanced security functions, implemented in a card format compatible with both stand-alone installation and direct integration into graphics controllers or Video Splicing Processors for video wall and LED wall systems.

[0007] Prior art

[0008] In recent years, the Audio Video (AV) sector has undergone a significant transformation thanks to the progressive convergence with Information Technology (IT) technologies. Traditionally, AV systems have relied on dedicated infrastructure, with analog and digital signals transmitted through specialized cabling such as coaxial cables, HDMI, Display Ports, and balanced or unbalanced audio connections. This approach imposed architectural and operational constraints, with limitations in terms of scalability, flexibility, and centralized management.

[0009] The evolution of IP networks and the adoption of standardized protocols have allowed a progressive migration of AV systems towards Ethernet-based platforms,LEIBO. / 70e2025

[0010] enabling the transmission of audio and video signals over data networks. This convergence offers numerous benefits, including increased interoperability, reduced cabling costs, centralized management, and the ability to implement large-scale distribution and control solutions. Technologies such as AV-over-IP and Software Defined Video-over-Ethernet (SDVoE) are becoming increasingly widespread, redefining the AV integration paradigm.

[0011] The solutions currently used for extending Audio Video and Control signals (including KVM systems) are based on various technologies and protocols that exploit the Ethernet network to overcome the physical limits of direct connections. AV-over-IP extension solutions rely on compression and transport protocols that enable the transmission of high-resolution video signals over long distances via standard Ethernet networks. Some of the more popular protocols include:

[0012] - HDBaseT: uses network cables (Cat5e / Cat6) to carry video, audio, control, and power signals up to 100 meters without the need for compression.

[0013] - SDVoE: standardized platform that supports uncompressed video transmission over 10 Gbps Ethernet networks.

[0014] - H.264 / H.265 Transmission: uses video compression algorithms to reduce the bandwidth reguired to transmit AV content over IP, ensuring reasonable quality at low bit rates.

[0015] - Other protocols: among the existing alternatives, those that deserve mention include SMPTE 2110 for professional video transmission over IP, JPEG XS for low-latency compression and NDI for real-time video production solutions or DANTE video for contexts where video transmission is reguired in addition to audio.

[0016] Similarly for the remote control of workstations and servers, in addition to AV transmission, KVM (Keyboard Video Mouse) systems allow users to access workstations / servers from remote workstations through dedicated audio-video and control cabling (typically USB, or PS / 2 in legacy systems) or over IP.LEIBO. / 70e2025

[0017] KVM over IP systems employ advanced compression techniques derived from the world of AV codecs to ensure a smooth user experience, seeking to minimize latency and optimize available bandwidth by seeking trade-offs between image quality, transmission latency, and bandwidth used. Notable proprietary solutions include those developed by G&D, IHSE, Matrox, and Weytec, which offer advanced features such as redundancy, encryption, and centralized configuration management.

[0018] In this regard, reference can be made to patent AU2024278281A1 filed by MATROX GRAPHICS INC. which concerns the real-time distribution of granular data streams over a network.

[0019] In the field of traditional KVM systems (legacy i.e. non-IP-based), there are also solutions that implement particular security functions on the audio-video-control signals such as secure isolators or audio diodes, in particular those from the company HighSecLabs.

[0020] The adoption of these systems has allowed for greater integration between the AV and IT worlds, reducing the need for dedicated hardware and favoring scalable and easily upgradeable architectures.

[0021] However, despite the numerous benefits, the transition of professional AV systems to IP-based solutions presents several technological and operational challenges:

[0022] - signal security: in traditional AV systems, security was ensured by the physical isolation of wired connections dedicated to each type of signal (audio, video, or control). With the adoption of IP networks and the transmission of all signals bidirectionally on a single support, the protection of AV content depends entirely on software measures, such as encryption, authentication and logical segmentation of the network, increasing the risks of cyber attacks - particularly those of data exfiltration - and leaving the possible adoption of countermeasures only to highly qualified cybersecurity personnel.

[0023] - Transmission quality and bandwidth limitations: transmitting AV signals over IP networks requires careful bandwidth management, especially for high-LEIBO. / 70e2025

[0024] resolution, high frame-rate content. Compression is often necessary to reduce network traffic, but can introduce visual artifacts and loss of quality.

[0025] - Latency: the conversion, compression, and transport of AV signals over IP networks introduces latency, which can be a critical issue for real-time applications such as real-time control, simulators, broadcasting, video conferencing, and remote control via KVM-over-IP.

[0026] - Network Reliability: IP networks must ensure high availability and redundancy to avoid interruptions in AV transmission. Solutions such as Quality of Service (QoS), multicast, and buffering are essential to prevent jitter and packet loss. - Compatibility and interoperability: the presence of multiple AV-over-IP standards and protocols can complicate integration between devices from different manufacturers, making the adoption of interoperable and scalable platforms necessary. If different standards must be integrated, it is necessary to interface the different standards with complex hardware or software configurations that severely limit the flexibility of the system.

[0027] Among the previous documents in the field, several patents can be cited, the first US2023163821A1 entitled “Intelligently selecting active transceiver in a multitransceiver device”. The patent describes an electronic device equipped with a processor, a plurality of transceivers and a memory in communication with the processor. The memory contains executable instructions that, when executed by the processor, cause the electronic device to perform certain functions. In particular, while a first transceiver is active, the device identifies, among the plurality of available transceivers, a second transceiver to which to transfer the signal transmission from the first transceiver. This identification is based on three parameters: signal quality, current temperature, and cooling capacity of each of the transceivers. Once the most suitable second transceiver has been identified, the device proceeds to transfer the signal transmission from the first transceiver to the newly selected one. This mechanism allows the device to optimize performance andLEIBO. / 70e2025

[0028] energy efficiency by dynamically choosing the most suitable transceiver based on current operating conditions.

[0029] While it shares the idea of a multi-transceiver system, it does not specifically address SDVoE or advanced security features.

[0030] Another relevant document is the Korean patent KR200242623Y1 which concerns an electronic device eguipped with a processor, a plurality of transceivers and a memory in communication with the processor. The memory contains executable instructions that, when executed by the processor, cause the electronic device to perform certain functions. In particular, while a first transceiver is active, the device identifies, among the plurality of available transceivers, a second transceiver to which to transfer the signal transmission from the first transceiver. This identification is based on three parameters: signal quality, current temperature, and cooling capacity of each of the transceivers. Once the most suitable second transceiver has been identified, the device proceeds to transfer the signal transmission from the first transceiver to the newly selected one. This mechanism allows the device to optimize performance and energy efficiency by dynamically choosing the most suitable transceiver based on current operating conditions. The device is part of a larger RF system for managing customer data and inventory for a business and does not appear to be directly related to the resolution of the technical issues listed. Continuing with the analysis of the patents, we mention KR20190099548 (A) which describes a method for transmitting and receiving machine-to-machine (M 2 M) data between a base station and a terminal in a wireless communication system. The process functions as follows: the terminal receives a downlink Media Access Control (MAC) packet from the base station and obtains the M2M data by interpreting the MAC layer included in the received packet. On the other hand, the base station receives a downlink packet containing M2M data from the core network, extracts this data, generates MAC layer control information that includes the M2M data, creates a downlink MAC packet with this control information,LEIBO. / 70e2025

[0031] and transmits it to the terminal. This method enables efficient M2M data communication within the existing wireless network infrastructure, leveraging the MAC layer to encapsulate and transmit M2M information between devices. While it addresses data communication, it does not address SDVoE or advanced security features.

[0032] We can also briefly mention:

[0033] - US2018205412A1 entitled “Autonomous bandwidth select wireless transceiver”, which describes a wireless transceiver system with autonomous bandwidth selection capabilities and while it shares some data transmission elements, it does not specifically address SDVoE or advanced security features; - TW201828610A concerns an RF transmitter with a power combiner and a differential amplifier and does not appear to be directly related to the SDVoE or security features of the device;

[0034] The last document we cite is US2017024354A1 and describes a single-wire I2C busbased transceiver system. While it covers data communications, it does not specifically address SDVoE or advanced security features.

[0035] Therefore, the object of the present invention is to introduce a transceiver that solves the problems already indicated and that directly allows:

[0036] - direct native management of SDVoE signals on large screens compatible with LED wall and LCD video wall controllers, without the need for external devices; - installations of very high density SDVoE audio-video-control distribution systems, thanks to the possibility of using two SDVoE channels for each card in the controller,

[0037] - having advanced security (hardware type) in signal transmission that is not dependent on software, ensuring a high degree of reliability and operational security against cyber threats.

[0038] Description of the invention

[0039] The present patent application for industrial invention intends to describe a systemLEIBO. / 70e2025

[0040] equipped with at least a new and alternative solution to the solutions known to date and in particular an SDVoE endpoint (endpoint being intended as an encoder device, or a decoder device or a transceiver device capable of functioning simultaneously as an encoder and as a decoder), designed for the transmission and reception of high definition audio-video signals on 10 Gbps Ethernet networks. The invention finds application in professional systems with particular reference to LED wall systems, video walls and network configurations for complex AV environments.

[0041] The present invention proposes an SDVoE transceiver configured with a main card and integrable with optional cards to extend the functionality and, as mentioned, allows the direct native management of SDVoE signals on large screens compatible with LED wall and LCD video wall controllers, without the need for external devices. Furthermore, it is configured to allow installations on very high density SDVoE audio-video-control distribution systems, thanks to the possibility of using two SDVoE channels for each card in the controller. Furthermore, it is equipped with advanced security (hardware type) in signal transmission that is not dependent on software, guaranteeing a high degree of reliability and operational security against potential cyber threats.

[0042] The above main card works autonomously or in combination with other cards, and comprises:

[0043] - at least an HDMI input capable of receiving high-definition video signals (HD, Full HD, 4K, 5K, etc.); said HDMI input capable of enabling the transceiver to acquire video content from a wide range of source devices, such as computers, media players or other AV signal generators;

[0044] - at least an HDMI output capable of transmitting video signals to display devices, such as monitors or LCD screens;

[0045] - at least a USB port configured to connect and manage USB HID (Human Interface Device) peripherals; said USB port offers support for input devices such as keyboards and mice;LEIBO. / 70e2025

[0046] - at least an SFP+ port capable of supporting the transmission and reception of signals over high-speed Ethernet networks; said SFP+ port also allows said SDVoE transceiver to operate in environments reguiring high bandwidths, ensuring minimal latency and consistent guality of the transmitted signals; - a chip, configured to encode and decode SDVoE signals (for example, the Semtech AVP2000 chip); said chip is configured to compress video signals and transmit them with no perceptible latency over the Ethernet network.

[0047] - an advanced security system based on a hardware configuration via numerous dip switches capable of interrupting the bidirectional communication of some components of the HDMI signal to eliminate security risks related to the bidirectionality of communication, without this system being able to be violated via software.

[0048] The SDVoE transceiver in guestion also features a number of internal communication interfaces directly wired into the printed circuit board to allow its functions to be expanded with other optional cards eguipped with additional functions so that it can be configured with a highly flexible modular architecture.

[0049] Modularity represents one of the distinctive elements of this invention, as it allows the device to function both autonomously, using the main card as a basic unit with its own directly integrated functions, and as part of advanced configurations through the integration of optional cards, such as:

[0050] - an FPGA card capable of extending the capabilities of the SDVoE transceiver, allowing it to interface with the controller backplane; said FPGA board is particularly useful in applications reguiring advanced management of video signals on video walls and LED walls and includes:

[0051] ■ at least a high-speed connector dedicated to direct communication with the main card, ensuring rapid and uninterrupted data transmission;

[0052] ■ an advanced architecture capable of managing ultra-HD video resolutions, multi-window configurations and precise synchronization ofLEIBO. / 70e2025

[0053] video signals distributed through the SDVoE network;

[0054] - a USB 2.0 card, connected directly to the main card, which extends the USB peripheral management capabilities of the main card and allows the transmission and reception of USB 2.0 signals, in place of said chip; said USB 2.0 card comprising integrated hardware filters capable of improving the security of USB communications, minimizing electromagnetic interference and ensuring signal quality;

[0055] - An Audio + USB-C Expansion Card to expand the transceiver's I / O capabilities and offer a wide range of additional interfaces, including:

[0056] ■ at least a USB-C port for connecting advanced peripherals such as storage devices or external controllers;

[0057] ■ balanced and unbalanced audio interfaces capable of supporting the transmission of analog audio signals with professional guality;

[0058] ■ at least a 1 Gbps Ethernet port capable of providing an additional network connection for bandwidth-intensive applications;

[0059] ■ control inputs and outputs including IR, RS232 and dry contact connections to allow integration with automation and control systems; - a Multi USB Expansion Card to expand the available USB transmission / reception channels so that - thanks to the use of several dedicated USB converter chips, one per channel - they can be managed independently of each other and paired independently with different remote counterparts. The card offers the following additional interfaces,

[0060] ■ at least two USB-C ports for independent USB routing;

[0061] - an HID Diode Board dedicated to the secure management of HID (Human Interface Device) communications, such as keyboards and mice, capable of providing:

[0062] ■ one-way communication using optoisolators to ensure electrical isolation between peripherals and the system, preventing potential securityLEIBO. / 70e2025

[0063] vulnerabilities;

[0064] ■ approved device filtering limits USB HID communication to authorized devices identified by means of unique hardware identifiers, further increasing protection against unauthorized access.

[0065] The aforesaid SDVoE transceiver can also be configured to operate as an acquisition card for graphic controllers or video splicing processors for video wall and LED wall systems (hereinafter referred to as controllers for the sake of brevity) for audiovideo signal distribution, offering flexibility and scalability according to application needs. For example, the transceiver in question is compatible with the Novastar H series controller model and / or with any graphic or video Splicing Processor controller model for video wall and LED wall systems).

[0066] The above LED wall controller includes "sending cards" that communicate directly with the "receiving cards" installed inside the LED wall. In this way, the main card, via the FPGA card, being in the same chassis as the controller and connected to the "sending cards", allows the acquired signals (via SDVoE decoding or HDMI direct acquisition) to be displayed directly on the LED wall, without the need for intermediary devices.

[0067] Some possible supported advantageous configurations are described below:

[0068] - FPGA board configuration: in this configuration, the SDVoE transceiver is equipped with an FPGA board capable of interfacing directly with the controller backplane and making the images directly available to the controller for subsequent processing (multiview, effects, etc.) and display on large format displays, video walls and LED walls; the FPGA card configuration is optimized for applications that require:

[0069] ■ high video processing capacity, to handle ultra-HD resolutions and multiwindow configurations;

[0070] ■ an advanced synchronization capability of video signals distributed across the SDVoE network, ensuring optimal performance in environmentsLEIBO. / 70e2025

[0071] requiring very high video quality;

[0072] ■ a direct high-speed interface with the main card, guaranteed by dedicated connectors, designed to ensure latency-free data transmissions;

[0073] - FPGA-free configuration, suitable for applications that do not require advanced video processing on a large screen, where the SDVoE transceiver can be configured without the FPGA card; this FPGA-free configuration is designed to offer basic encoding and decoding functionality, using the main card for transmitting and receiving video and audio signals over an Ethernet network; this economical and compact FPGA-free configuration can be used in systems where complex video processing or multi-window synchronization is not required;

[0074] - single main card configuration used for simple and compact applications; said single main card configuration allows the SDVoE transceiver to operate independently, using the integrated interfaces (HDMI, USB-A, SFP+) for the transmission and management of AV signals, providing a lightweight and space-saving solution.

[0075] - dual main card configuration which increases processing capacity and allows the transceiver to integrate at least two main cards, operating in parallel allowing:

[0076] ■ handling a greater volume of AV signals, improving overall system performance;

[0077] ■ supporting complex applications, such as handling multiple simultaneous video streams or AV signals with high bandwidth requirements;

[0078] - complete configuration, which extends the functionality of the transceiver and comprises:

[0079] ■ at least a USB 2.0 card to handle non-native USB 2.0 signals, ensuring safety through hardware filters;

[0080] ■ at least an expansion card to add USB-C ports, balanced / unbalancedLEIBO. / 70e2025

[0081] audio interfaces, Ethernet port and control inputs / outputs (I R, RS232, dry contact);

[0082] ■ at least a HID diode card to provide secure isolation and unidirectional communication for USB HID devices, limiting access to authorized peripherals via unique hardware identifiers.

[0083] This plurality of configurations guarantees high operational flexibility, adaptability and economic efficiency: each configuration is in fact optimized for specific application scenarios, from simple encoding / decoding operations to advanced processing, allowing the system to be scaled according to performance and complexity requirements and therefore allowing costs to be optimized by selecting only the necessary functions.

[0084] As anticipated, the SDVoE transceiver described is equipped with a hardware-based implementation called HDSec (Hardware Defined Security), which guarantees the protection and control of communications between the device and the connected peripherals. This hardware-based security system, HDSec, represents an innovative approach to security, allowing each endpoint to be physically and uniquely configured and protected, preventing unauthorized access, manipulation, or information exfiltration.

[0085] The implementation of the HDSec system in this invention consists of the following main elements:

[0086] - a secure physical isolator, in the form of a hardware dip switch that directly and physically interrupts the communication channel (said “physical DIP switches” ) of the UART (Universal Asynchronous Receiver-Transmitter) serial bus on a PCB (Printed Circuit Board) that connects the MCU (programmable logic controller) to a chip (for example, the Semtech AVP2000 - said SDVoE Chip , i.e. the heart of the card, i.e. the chip that manages the multiplexing transmission of the various audio-video-control signals on a 10Gbps Ethernet network). The UART channel is used to perform MCU firmware updates,LEIBO. / 70e2025

[0087] normally sent over Ethernet through the SDVoE chip; interrupting this channel makes it impossible to overwrite the MCU firmware. Thanks to this protection, once the security configuration has been defined via the hardware dip switches and read by the MCU, the risk of an attack by means of remote overwriting of the programming in the MCU (which should occur via the UART serial bus) to bypass the protections defined in the logical dip switches is prevented.

[0088] - a safe physical isolator, in the form of a hardware dip switch that directly and physically interrupts the UART serial bus communication channel on the PCB and between the MCU and the controller bus ; this protection ensures the physical interruption of bidirectional serial communication while maintaining active power from the controller and reception of the HDMI channel by the controller . The card will continue to send and receive its audio-video-control signals over the SDVoE network and send video to the controller, which however will not be able to detect the card. With this protection activated , any compromise of the controller firmware would have no repercussions on the invention.

[0089] - a group of DIP hardware switches for configuring transceiver functions in a unigue and secure way, also called “ logical DIP switches ”, namely hardware components that define a configuration read by the MCU, and provide the following different functions:

[0090] ■ identify and configure each card uniguely, configuring each transceiver with specific settings;

[0091] ■ set the EDID (Extended Display Identification Data) communication mode; The aforesaid DIP switches allow selection between different EDID sources to adapt to operational needs;

[0092] The term EDID sources refers to a set of information stored in a display device (such as a monitor or projector) that describes its technical characteristics to the source device (such as a computer or media player) . Said EDID sources comprise:LEIBO. / 70e2025

[0093] i. default EDID stored in the factory, in said MCU.

[0094] ii. default EDID stored at on-site configuration in the flash memory card, ideal for standard high-security configurations; the EDID configuration in the flash memory can be written in one of the following ways:

[0095] • EDID acguired from a local monitor, obtained by manually pressing a button during setup, preventing unauthorized continuous readings;

[0096] • EDID received from the audio-video signal splitter controller, optimized for specific LED wall applications, obtained by manually pressing a button during installation, preventing unauthorized continuous readings;

[0097] • EDID via SDVoE, achieved by manually pressing a button during installation, preventing unauthorized continuous readings;

[0098] iii. EDID read dynamically continuously, for flexible configurations, via:

[0099] • local monitor

[0100] • controller

[0101] • SDVoE.

[0102] The above mentioned logical DIP switches also allow to:

[0103] ■ Enable or disable HDMI features comprising:

[0104] i. Consumer Electronics Control (CEC): control of devices connected via the HDMI standard;

[0105] ii. Audio Return Channel (ARC): transmission of audio signals from the display to the transceiver;

[0106] iii. HDMI Ethernet Channel (HEC): network communication via HDMI; ■ configure USB HID, USB 2.0, and audio communication in three different modes, customizable based on the class, brand, or model of the connected device; these communication modes comprise:

[0107] i. bidirectional mode to allow complete data exchange between device and peripherals;LEIBO. / 70e2025

[0108] ii. one-way mode to limit communication to one direction only; iii. fully locked down mode to disable communication with certain devices;

[0109] The aforesaid HDSec system also provides:

[0110] - a secure EDID pass-through mechanism (e.g., push-button initiated and stored in flash memory), which limits the flow of EDID information to one direction only, ensuring that data only travels from the SDVoE transceiver to the display or vice versa, depending on operational needs; this secure EDID pass-through mechanism prevents continuous unauthorized communications, protecting the system configuration and reducing the risk of vulnerabilities.

[0111] - a video source distribution mode selection mechanism within the card, to connect the incoming HDMI signal, or the video signal provided by the SDVoE chip, either to the FPGA card, or to the HDMI output, or to the SDVoE chip - a mechanism to enable / disable TX or RX communication between the MCU and the SDVoE chip,

[0112] - a mechanism to enable / disable TX or RX communication between the MCU and the FPGA card.

[0113] - a mechanism to enable / disable the ability to update the MCU firmware, making an attack that would consist of updating the firmware remotely impossible. Said HDSec security system therefore guarantees advanced protection through physical configurations, reducing the risks of cyber attacks with respect to software solutions. Each device is customizable via DIP switches to enable or disable features such as HDMI, USB and audio, adapting to different operating applications. Furthermore, the use of optocouplers and safe diodes ensures unidirectional isolation of communications, preventing interference and data loss, making the system reliable and flexible in professional contexts.

[0114] Said SDVoE transceiver is also designed to ensure complete traceability of hardware changes, introducing an innovative traceability system that combines logging, real-LEIBO. / 70e2025

[0115] time monitoring and security notifications. Said traceability system allows to detect, record and report any configuration changes made via the integrated DIP switches, providing advanced control and protection against tampering or unauthorized use. A key element of said traceability system is the presence of an integrated memory, configured to permanently record every change made via the DIP switches; each record includes a unigue seguential operation ID that defines a precise time stamp for the temporal identification of the change.

[0116] The above SDVoE transceiver also features an advanced software interface, configured to:

[0117] - generate real-time notifications whenever a change to the DIP switches is detected;

[0118] - transmit said notifications via secure communication protocols, such as HTTPS or MQTT with TLS encryption, which ensure that sensitive information is protected during transmission;

[0119] - allow system administrators to constantly monitor the status of the transceiver and react quickly to any unauthorized changes.

[0120] In addition to remote notifications, the SDVoE transceiver is eguipped with a local alarm system that immediately signals any tampering attempts or unauthorized changes; the alarm system comprises:

[0121] - a visual signaling system via LEDs;

[0122] - an acoustic signaling system via a sound alarm.

[0123] The SDVoE transceiver described in the invention also operates in three distinct operating modes, so as to exploit the advanced capabilities of the SDVoE transceiver to handle high definition audio-video signals with particular attention to compatibility with audio-video signal splitting controllers. More specifically:

[0124] - an encoder mode in which said SDVoE transceiver is configured to convert HDMI video signals into SDVoE signals optimized for transmission over a highspeed Ethernet network; said encoder mode includes:LEIBO. / 70e2025

[0125] ■ the acquisition of the HDMI input signal via the dedicated ports on the main card;

[0126] ■ signal processing via the chip;

[0127] ■ SDVoE signal transmission through the SFP+ port, with 10 Gbps bandwidth, ensuring the quality and integrity of the transmitted signal;

[0128] ■ the integration with the audio-video splitter controller receives the SDVoE signals and distributes them to remote LED walls for display, eliminating the need for intermediate HDMI cables;

[0129] - a decoder mode in which said SDVoE transceiver receives SDVoE signals from the Ethernet network and converts them back to HDMI signals for local display or processing; said decoder mode includes:

[0130] ■ receiving the SDVoE signal via the SFP+ port from an Ethernet network;

[0131] ■ signal decoding via the chip, which converts the compressed SDVoE stream into an HDMI video signal;

[0132] ■ transmitting the HDMI signal through the main card output, making it available for display devices, such as monitors or LED screens;

[0133] - a simultaneous encoder / decoder mode in which said SDVoE transceiver is configured to operate simultaneously as an encoder and decoder, allowing it to handle video streams in both directions; said simultaneous mode includes: ■ the acquisition of HDMI signals and the subsequent conversion into SDVoE signals for transmission over an Ethernet network;

[0134] ■ receiving SDVoE signals from the Ethernet network and then decoding them to make them available as HDMI signals.

[0135] Such operating modes give the SDVoE transceiver exceptional versatility, making it a complete solution for the management and distribution of audio-video signals in professional environments.

[0136] This versatility makes the SDVoE transceiver a high-performance and customizable solution for integration with audio-video signal splitter controllers and professionalLEIBO. / 70e2025

[0137] AV applications.

[0138] The SDVoE transceiver in question also features a mechanical installation system optimized for compact configurations, comprising:

[0139] - installation in standard 19" rack chassis, with the ability to install at least two transceivers per slot, and providing a modular structure supporting up to 7 transceivers per rack unit and up to 126 transceivers in a 20-unit rack,

[0140] - a centralized and redundant power supply system, which allows operational continuity in the event of failures and guarantees high energy efficiency, reducing the number of individual rack power supplies and improving overall efficiency.

[0141] The SDVoE transceiver described in the invention is designed to integrate directly with audio-video signal distribution controllers, offering an optimized connection via sending cards designed to simplify the management of video signals, eliminating the need for intermediate HDMI cables and reducing cabling complexity and the risk of connection errors.

[0142] The advantages offered by the present invention are evident in the light of the description presented thus far and will be even clearer thanks to the attached figures and the related detailed description.

[0143] Description of the fiqures

[0144] The invention will be described hereinafter in at least a preferred embodiment by way of non-limiting example with the aid of the appended figures, in which:

[0145] - FIGURE 1 shows a view of a main card 6 comprising HDMI inputs 1, HDMI outputs 2, USB 2.0 ports 3, USB HID 4, network connection 5, main card 6, FPGA card 7, controller bus connection 10 for display devices, DIP switches for HDSec 8, PCI bus 7.1 for expansion cards 13.

[0146] - FIGURE 1A shows a use case view of DIP switches with said cards to set security features.

[0147] - FIGURE 2 shows a top view of an FPGA card 7 in acquisition card configuration forLEIBO. / 70e2025

[0148] LED wall controllers or display devices, connected to two main cards 6, to which in turn is connected a USB 2.0 card 3 and comprising HDMI inputs 1, HDMI outputs 2, USB HID 4, network connection 5, controller bus connection 10, DIP switches for HDSec 8, PCI bus 7.1 for expansion cards.

[0149] - FIGURE 3 shows a top view of an expansion card 13 comprising USB-C ports 3.1, Ethernet connection network 5, Multiple I / O: RS252, IR, Dry Contact, Balanced audio 11, Unbalanced audio (TRRS) 12, PCI bus 7.2 for connection to main card 7.2. - FIGURE 4 shows a view of a main card 6 connected via PCI bus 7.2 to FPGA card 7; the connection to the bus 10 of the LED wall controller is also shown.

[0150] - FIGURE 5 shows an axonometric view of an SDVoE transceiver in a Stand Alone configuration in the extended version comprising a protective mask; this version includes main card 6 + FPGA card 7 with heatsink, USB card 3-4, HDMI inputs 1, HDMI outputs 2, multiple 11, network connection 5, all in the form of an acguisition card for LED wall controllers and display devices.

[0151] - FIGURE 6 shows an isometric view of an SDVoE transceiver in a compact standalone configuration comprising USB card 3-4, HDM11 inputs, HDMI 2 outputs. - FIGURE 7 shows an isometric view of an SDVoE transceiver board in a dual configuration with FPGA card 7, various types of LED wall controllers, 2 rack units 14, 9 rack units 15 and 5 rack units 15. Showing high density: 20 cards can be installed in 4 rack units, allowing the connection of 40 transceivers in total.

[0152] Detailed description of the invention

[0153] The present invention will now be illustrated by way of a purely non-limiting or binding example, resorting to the figures which illustrate some embodiments related to the present inventive concept.

[0154] Referring to FIGS. 1 to 6, the high-density, secure SDVoE transceiver is shown, comprising a main card 6, designed to provide modular and advanced audio-video management features on 10 Gbps Ethernet networks. The main card 6 comprises:

[0155] • HDM11 inputs, configured to receive high-definition video signals;LEIBO. / 70e2025

[0156] • HDMI 2 outputs, designed to transmit video signals to display devices such as monitors or LED walls;

[0157] • USB 2.0 ports 3 and USB HID ports 4, configured to support USB peripherals, including keyboards, mice, and storage devices;

[0158] • a USB-C port 3.1 connecting advanced peripherals;

[0159] • network connection 5, capable of supporting communications on 10 Gbps Ethernet networks;

[0160] • an SFP+ port, capable of supporting the transmission and reception of signals via Ethernet network;

[0161] • controller bus connection 10, designed to communicate with display devices such as LED wall controllers;

[0162] • dip switches for HDSec 8, used to configure hardware security settings;

[0163] • PCI bus 7.1, which allows the connection of 13 expansion cards to extend the functionality of the system;

[0164] • a chip configured for encoding and decoding SDVoE signals, integrated to ensure advanced compression.

[0165] With reference to FIG. 1A, the use cases of the DIP switches 8 are shown, which comprise:

[0166] • EDID communication mode configuration;

[0167] o default EDID stored in the card;

[0168] o EDID configurable in flash memory via manual button;

[0169] o EDID received from the audio-video signal distribution controller;

[0170] o EDID read dynamically through the SDVoE chip or by a distant endpoint;

[0171] • configuration of internal routing of video sources, allowing the card to function as an encoder or transceiver, and to direct signals to HDMI output, LED wall or SDVoE channel;

[0172] • enabling or disabling HDMI features such as CEC, ARC and HEC;

[0173] • Configuration of USB HID, USB 2.0, and audio communications in bidirectional,LEIBO. / 70e2025

[0174] unidirectional, or fully blocked mode using optoisolators for electrical isolation;

[0175] • USB HID daughter card connector configuration, which allows selecting communication modes such as unidirectional for host, unidirectional for device, or bidirectional, preventing data leakage.

[0176] With reference to FIG. 2, an advanced configuration is illustrated which includes an FPGA card 7 connected to two main cards 6, used as an acguisition card for LED wall controllers or display devices. This configuration comprises:

[0177] • HDM11 inputs and HDMI 2 outputs;

[0178] • USB HID ports 4;

[0179] • network connection 5;

[0180] • controller bus connection 10;

[0181] • DIP switches for HDSec 8;

[0182] • PCI bus 7.1 for expansion cards 13.

[0183] With reference to FIG. 3, an expansion card 13 is shown, designed to extend the capabilities of the main card 6. This card includes:

[0184] • USB-C ports 3.1;

[0185] • 5Gbps Ethernet connection;

[0186] • multiple I / O comprising RS252, I R, Dry Contact, Balanced Audio 11 and Unbalanced Audio (TRRS) 12;

[0187] • PCI bus 7.2 for direct connection to the main card 6.

[0188] With reference to FIG. 4, a configuration is presented showing two main cards 6 connected via PCI bus 7.2 to the FPGA card 7, connected to the controller bus 10 for display devices such as LED walls.

[0189] A computer program is associated with the SDVoE transceiver to allow the control thereof through a plurality of modules including:

[0190] a module for generating real-time notifications which activates whenever a change to the DIP switches is detected (in FIG. 2);

[0191] a module for transmitting said notifications via secure communicationLEIBO. / 70e2025

[0192] protocols, such as HTTPS or MQTT with TLS encryption, which ensure that sensitive information is protected during transmission;

[0193] - a module that allows system administrators to constantly monitor the status of the transceiver and react quickly to any unauthorized changes.

[0194] With reference to FIG. 5, an axonometric view of the SDVoE transceiver in a Stand Alone configuration in extended version is shown. This version includes:

[0195] • a main card and an expansion card,

[0196] • USB connections 3-4;

[0197] • HDM11 input and HDMI 2 outputs;

[0198] • SFP+ connection for 10Gb / s network 5;

[0199] • multiple I / O 11;

[0200] • USB-C 12,

[0201] • Analog audio 13.

[0202] With reference to FIG. 6, an axonometric view of a SDVoE transceiver in Stand Alone configuration in compact version is shown. This configuration includes:

[0203] • USB inputs 3-4;

[0204] • HDM11 inputs and HDMI 2 outputs,

[0205] • SFP+ connection for 10Gb / s network 5.

[0206] With reference to FIG. 7, an axonometric view of a SDVoE transceiver card in a dual configuration with FPGA card 1, various types of LED wall controllers, 2 rack units 14, 9 rack units 15 and 5 rack units 16 is shown.

[0207] As shown in Figure 7, up to 20 cards can be installed in 4 rack units, for a total of 40 transceivers in 4 rack units (and therefore up to 10 transceivers per rack unit).

[0208] Finally, it is clear that modifications, additions or variations that are obvious to a person skilled in the art can be made to the invention described so far, without thereby departing from the scope of protection provided by the attached claims.

Claims

LEIBO. / 70e2025Claims1. SDVoE transceiver, characterized in that it is configured for the transmission and reception of audio-video signals on a 10Gbps Ethernet network, comprising at least a main card, called Main card (6), capable of operating autonomously and comprising:- at least a video input capable of receiving high-definition video signals; - at least a video output capable of transmitting video signals to display devices;- at least a USB port (3), configured for the connection and management of USB peripherals;- at least a SFP+ port (5), capable of supporting the transmission and reception of data via Ethernet network connection up to 10 Gbps;- at least a chip, configured for encoding and decoding SDVoE signals;- a modular architecture that expands the functionality of the transceiver allowing its autonomous operation and / or integration with additional optional cards.

2. SDVoE transceiver, according to the preceding claim 1, comprising a hardware security system defined as Hardware Defined Security (HDSec) capable of ensuring unidirectional communication between the endpoints comprising a group of DIP switches (8) to configure each card in a unigue and secure manner.

3. SDVoE transceiver, according to any of the preceding claims 1 and 2, comprising at least a switch (S1) to mechanically disconnect the UART communication between the CPU of said Main card (6) and the FPGA card (7).

4. SDVoE transceiver, according to the preceding claim 2, comprising at least two switches (S2) to mechanically disconnect the UART communication between the CPU of said Main card (6) and an SDVoE chip, blocking any firmware update.

5. SDVoE transceiver, according to the preceding claims, comprising at least two switches for setting the EDID communication mode of the Video inputs and outputs:o Default EDID stored in the card;LEIBO. / 70e2025o Default EDID configurable in flash memory via:o EDID acquired from a local monitor by manually pressing an EDID acquisition button;o EDID received from the audio-video signal distribution controller to screens;o Default EDID stored on chip or from a remote monitor through a distant endpoint;o These switches allow you to set the EDID reading mode, selecting an option between continuous reading, protected passage, default; o secure EDID pass-through, ensuring that information only travels in one direction between the source and the display device.

6. SDVoE transceiver, according to the preceding claims, comprising at least two switches for configuring the internal routing of video sources, allowing the transceiver to function as an encoder or transceiver, and to direct video inputs to the HDMI output, a display device, an LED wall or the SDVoE channel.

7. SDVoE transceiver, according to the preceding claims, comprising at least two switches for enabling or disabling one or more of the following HDMI functionalities:■ Consumer Electronics Control CEC communication;■ Audio Return Channel ARC communication;■ HDMI Ethernet Channel HEC communication.

8. SDVoE transceiver, according to the preceding claims, comprising at least two switches for configuring bidirectional, unidirectional “Host”, unidirectional “Device” or completely blocked mode of one or more of the following interfaces:o USB HID,o USB 2.0,o USB 3.0,o balanced audio,o unbalanced audio.

9. SDVoE transceiver, according to the preceding claims, comprising at least twoLEIBO. / 70e2025switches for setting the permission or blocking of a predetermined class, brand or model of USB devices.

10. SDVoE transceiver, according to preceding claim 1, comprising:- an FPGA card (2), suitable for interfacing with the backplane of at least an audio-video signal distribution controller towards large LED screens, and comprising:■ at least a high-speed connector for direct communication with at least a Main Card (6);■ an architecture optimized for the management of ultra-HD video resolutions, multi-window configurations and advanced synchronization of video signals distributed through the SDVoE network.

11. SDVoE transceiver, according to the preceding claims, comprising:- a USB 2.0 card (3) connected to the Main Card (6), suitable for:■ manage the transmission and reception of USB 2.0 signals not natively supported by said chip;■ include hardware filters to ensure the security of USB communications and reduce electromagnetic interference.

12. SDVoE transceiver, according to the preceding claims, comprising:- an expansion card (13) connected to said Main Card (6), designed to expand the I / O functions of the device, comprising:■ at least a USB-C port for connecting advanced peripherals;■ balanced and unbalanced audio interfaces for transmitting analog audio signals;■ at least a 1 Gbps Ethernet network port for additional connections; ■ control inputs and outputs, including I R, RS232 and dry contacts.

13. SDVoE transceiver, according to the preceding claims, comprising:- a HID diode card suitable for:■ ensure unidirectional communication of USB HID devices, such as keycards and mice, by using opto-isolators to ensure electricalLEIBO. / 70e2025isolation between peripherals and the system;■ limit USB HID communication to devices approved based on unique hardware identifiers.

14. SDVoE transceiver, according to the preceding claims from 1 onwards, characterized in that it functions as an acquisition card for said controller devices for the distribution of audio-video signals towards display devices.

15. SDVoE transceiver, according to the preceding claims 1 and 2, being also programmed in Stand Alone configuration (5), comprising at least a Main Card (6) installed in a compact case.

16. SDVoE transceiver, according to any preceding claim, wherein to ensure complete traceability of hardware changes, it comprises:- a built-in memory to record every change made via DIP switches, including:■ timestamp of the operation;■ a unique identifier of the user or device that performed the modification;- a software interface configured to generate real-time notifications of any unauthorized changes, sent via HTTPS or MQTT protocol with TLS encryption;- a local alarm system, based on visual LED or acoustic signaling, activated immediately in case of tampering attempts.

17. SDVoE transceiver, according to any preceding claim, converting HDMI signals into SDVoE signals transported over a 10 Gbps Ethernet network, and integrating the signals into the audio-video signal splitter controller to displays for display on a remote LED wall.

18. SDVoE transceiver, according to any of the preceding claims, comprising:- a controller for distributing audio-video signals to display devices, and allowing direct communication with the sending cards of the LED wall controller, eliminating the need for intermediate HDMI cables;- a local alarm system that immediately signals tampering attempts or unauthorized changes; said alarm system includes a visual signaling systemLEIBO. / 70e2025via LEDs and an acoustic signaling system via a sound alarm.

19. System, comprising the transceiver according to any of the preceding claims 1 to 18, comprising:- at least a rack chassis (14), comprising at least two slots; each slot containing at least two transceivers;- a centralized and redundant power supply system, to ensure operational continuity in the event of failures;- overheating sensors and cooling system connected or integrated into the rack.

20. System according to any of the preceding claims, configured to be installed in a rack chassis (15), with a density egual to or greater than 7 transceivers per rack unit (44.45 mm).

21. System according to the preceding claim 10, wherein a chassis (16) comprises 40 slots or more, adapted to receive 80 transceivers or more.

22. Computer program, for controlling the SDVoE transceiver according to the preceding claims from 1 to 21, comprising:- a module for generating real-time notifications whenever a change to the DIP switches is detected;- a module for transmitting these notifications via secure communication protocols, such as HTTPS or MQTT with TLS encryption, which ensure that sensitive information is protected during transmission;- a module that allows system administrators to constantly monitor the status of the transceiver and react quickly to any unauthorized changes.

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