Virtual Hardware Bridging for Networked Conferencing Peripherals
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Solution Overview
Problem
Videoconferencing systems face limitations due to complex and unsightly wiring solutions that restrict equipment placement and connectivity, requiring hardware adapters for USB connections and limiting the distance and arrangement of peripherals.
Innovation Solution
A virtualized hardware bridging system that provides virtual sound card, camera, touch, and display functionalities within the operating system, enabling peripherals to communicate over a network with videoconferencing software, eliminating the need for physical USB connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If hardware adapters (Ethernet-to-USB) are used to connect peripherals to videoconferencing software, then connectivity between networked peripherals and videoconferencing applications is enabled, but device complexity and wiring complexity increase
Solution Approach 1:
The patent introduces a virtualization layer that acts as an intermediary between networked peripherals and videoconferencing applications. This virtualization layer creates virtual USB devices that emulate physical USB connections, allowing videoconferencing software to communicate with networked peripherals through virtual interfaces rather than physical adapters. The intermediary translates network protocols into USB-compatible communication protocols, eliminating the need for physical Ethernet-to-USB hardware adapters while maintaining compatibility with existing videoconferencing applications.
Solution Approach 2:
The patent replaces the mechanical/physical USB connection system with a software-based virtual connection system. Instead of using physical USB cables and hardware adapters, the system uses virtual USB device drivers and network communication protocols to establish connections. This substitution eliminates the need for physical wiring while maintaining the functional equivalence of USB connections, thereby reducing wiring complexity while preserving connectivity.
2Adaptability or versatility
If video cables (HDMI, DisplayPort) are used to connect computers to video displays, then video signal transmission is enabled, but the distance and arrangement flexibility of equipment is limited
Solution Approach 1:
The patent replaces physical video cable connections with network-based video streaming. Instead of using HDMI or DisplayPort cables that are limited in length, the system transmits video signals over IP networks using protocols such as RTSP (Real Time Streaming Protocol). This allows video displays to receive signals from remote computers through the network infrastructure, eliminating cable length constraints and enabling flexible equipment placement throughout the facility.
Solution Approach 2:
The patent transitions video signal transmission from a local physical connection (cable-based) to a networked distributed architecture. By moving video transmission to the network dimension, the system allows displays to be positioned anywhere within network range rather than being constrained to immediate proximity of the computer. This dimensional shift from local to networked connectivity enables equipment to be arranged according to spatial and functional requirements rather than cable length limitations.
3Reliability
If physical USB connections are required for peripheral connectivity, then reliable communication is established, but the system lacks flexibility in equipment placement and network integration
Solution Approach 1:
The patent introduces a virtualization intermediary that maintains reliable communication by emulating USB communication protocols over the network. The virtual USB device drivers replicate the behavior and protocol structure of physical USB connections, ensuring that videoconferencing applications experience consistent and reliable communication. This intermediary layer translates network packet exchange into USB-compatible data streams, preserving the reliability characteristics of physical USB connections while enabling network-based connectivity.
Solution Approach 2:
The patent creates a universal communication interface that functions both as a virtual USB device for compatibility with existing applications and as a networked connection for flexibility. The virtual USB implementation supports multiple peripheral types (cameras, microphones, displays) through a single unified software interface, allowing the same infrastructure to serve both reliability requirements (through protocol emulation) and placement flexibility (through network connectivity).
Data Source
AI summary
A computer-implemented method remotely facilitates exchange of multimedia signals over a network in a teleconferencing environment. The method includes, with a computing device, in real time: receiving input internet protocol (IP) signals from a first peripheral over the network via an IP interface of the computing device; transmitting the input IP signals, via a virtual hardware bridge, to an RTSP server of a virtual display running on the computing device; receiving one or more output IP signals from a teleconferencing application running on the computing device via the virtual hardware bridge; and transmitting the output IP signals to a second peripheral over the network via the network connection.