Meeting Base Unit Interface for Driverless AV Device Sharing

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Solution Overview

Problem

Existing electronic communication tools for meetings often suffer from low-quality audio and visual signals, especially in larger gatherings, and there is a need for high-quality audio and visual sharing among participants without the need for additional software or driver installations.

Innovation Solution

A system and method for connecting a processing device to a functional device via a base unit using a generic communications protocol, allowing sharing and combining of peripheral device functionalities through a first peripheral device, which can expose endpoints using descriptor fields and support vendor-specific drivers, enabling unified communication and seamless access to multiple participants.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If portable devices such as laptops and mobile phones are used to provide microphones and loudspeakers, then device portability and ease of operation are improved, but audio quality deteriorates

Engineering Contradiction:
Improvedevice portabilityVSAvoidaudio quality
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces a base unit as an intermediary device that connects high-quality external microphones and loudspeakers to participants' portable processing devices. The base unit receives audio signals from external microphones, processes them, and outputs to high-quality loudspeakers, thereby mediating between the portable devices and the audio equipment to achieve both portability and high audio quality.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If high-quality audio and visual signals are provided for larger meetings, then signal quality is improved, but device complexity and infrastructure requirements increase

Engineering Contradiction:
Improvesignal qualityVSAvoidinfrastructure requirements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The base unit is designed as a universal device that can serve multiple participants simultaneously through wireless communication. It handles both audio and visual signals, and can serve an indefinite number of processing devices (laptops, tablets, smartphones) without requiring separate equipment for each participant, thereby reducing overall infrastructure complexity while maintaining high signal quality.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines multiple functions into the base unit: it serves as a wireless communication hub, audio processor, video distributor, and device connector. By merging these functions into a single centralized unit, the system avoids the complexity of multiple separate devices and connections, simplifying the infrastructure while providing high-quality signals to all participants.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If vendor-specific drivers are required for functional devices, then device compatibility is improved, but ease of operation and software installation complexity increase

Engineering Contradiction:
Improvedevice compatibilityVSAvoidsoftware installation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The base unit creates a virtual copy or representation of the connected functional devices (microphones, loudspeakers, cameras) that is compatible with standard operating systems. Instead of requiring participants to install vendor-specific drivers for each device, the base unit presents standardized interfaces that work with generic drivers already included in operating systems, thereby eliminating the need for additional software installation while maintaining device compatibility.

Inventive Principle:
Principle #26Copying

Data Source

PatentEP4633090B1Method and system for making functional devices available to participants of meetings
Publication Date: 2026.03.25 BARCO NV
  • EP4633090B1 patent drawingFigure 1A
  • EP4633090B1 patent drawingFigure 1B
  • EP4633090B1 patent drawingFigure 1C

AI summary

A system and method are described for connecting a processing device to a functional device connected to or in a base unit of a communications network, the base unit having a transmitter and the processing device having a memory, a display and an operating system. A first peripheral device is adapted to be coupled to the processing device via a generic communications protocol, the first peripheral device having a receiver and at least one fixed or configurable endpoint of the functional device exposed on the first peripheral device. The base unit and the first peripheral device is adapted to transmit and receive data respectively over the communications network from the functional device to the processing device via the at least one fixed or configurable endpoint using the generic communications protocol for communication between the processing device and the first peripheral device.