Meeting Display Node With Zero-Footprint Wireless Content Sharing

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Solution Overview

Problem

Existing electronic meeting tools face challenges such as complexity in networking infrastructure, high user expertise requirements, lack of participation, inefficient display management, and difficulties in connecting devices to projectors, leading to unproductive and time-consuming meetings.

Innovation Solution

A method for displaying images on multiple devices using a shared memory canvas that maintains aspect ratio and resolution, allowing participants to add or remove sources democratically, and using a zero-footprint screen scraping technology for seamless content sharing without installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional presentation software is used with a single presenter, then the presentation can be controlled centrally, but participant participation and collaboration are limited

Engineering Contradiction:
Improveparticipant participationVSAvoidcollaboration system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system divides the presentation control into multiple independent participant workspaces, each capable of displaying and controlling their own content. The virtual whiteboard is segmented into multiple regions where different participants can contribute simultaneously, eliminating the single-point control bottleneck while maintaining system manageability through modular architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The virtual whiteboard serves multiple functions simultaneously: it acts as a presentation display, a collaboration canvas, a content aggregation space, and a shared annotation area. This multi-functionality allows the system to support both centralized presentation and distributed collaboration without requiring separate systems, resolving the contradiction between participation and complexity.

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

2Adaptability or versatility

If multiple devices are connected to a single projector, then content sharing is enabled, but connection time and setup complexity increase

Engineering Contradiction:
Improvedevice connectivityVSAvoidconnection time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system replaces physical cable connections with wireless network-based communication. Devices connect to the projection system through the network rather than requiring direct physical links, eliminating the time-consuming process of plugging and unplugging cables while maintaining versatile device connectivity through standard network protocols.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs preliminary network discovery and device pairing before the meeting starts. Devices are pre-configured with network credentials and connection parameters, so when the meeting begins, they can join the virtual whiteboard session immediately without requiring on-the-spot connection setup, thus reducing connection time while maintaining adaptability.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If screen content is captured and transmitted over network, then remote display is enabled, but security risks and configuration complexity arise

Engineering Contradiction:
Improvedisplay setupVSAvoidsecurity risks
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system introduces a trusted local gateway device as an intermediary between the participant devices and the network. Screen content is captured and transmitted through this local gateway rather than directly over the network, which filters and secures the data transmission. This intermediary approach simplifies display setup by handling connections automatically while mitigating security risks through localized processing and controlled network exposure.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Area of stationary object

If display content is scaled to fit multiple screens, then screen real estate is optimized, but aspect ratio distortion occurs

Engineering Contradiction:
Improvedisplay area utilizationVSAvoidimage aspect ratio
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

Instead of scaling images in two dimensions which causes distortion, the system arranges multiple scaled-down versions of the same content across multiple display screens in a spatial distribution pattern. Each screen displays a portion of the overall content layout, maintaining the original aspect ratio on each screen while collectively utilizing the full display area available across the multi-screen configuration.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3826300B1Electronic tool and methods for meetings
Publication Date: 2026.02.25 BARCO NV
  • EP3826300B1 patent drawingFigure 1a
  • EP3826300B1 patent drawingFigure 1b~2
  • EP3826300B1 patent drawingFigure 3~5

AI summary

An electronic meeting tool and method for communicating arbitrary media content from users at a meeting is described. These can include a node configuration means adapted to operate a display node of a communication network, the display node being coupled to a first display. The node configuration means is adapted to receive user selected arbitrary media content and to control display of the user selected arbitrary media content on the first display. At least one peripheral device adapted to communicate the user selected arbitrary media content via the communications network is provided, wherein the peripheral device is a connection unit comprising: (e) a connector adapted to couple to a port of a processing device having a second display, a memory and an operating system; and (f) a transmitter for communicating with the communications network, A program provided that is adapted to be loaded onto the processing device and to run on the operating system of the processing device, said program being adapted to obtain user selected arbitrary media content, said program leaving a zero footprint on termination. An input device is provided to allow the user to carry out a user action that triggers transfer of said user selected arbitrary media content to said transmitter through said port.