3D Presentation Screen Sharing With Selectable 2D View

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Solution Overview

Problem

Conventional videoconferencing technologies lack the social interaction and spatial awareness that physical meetings provide, leading to a loss of experiential and social connections, and struggle with handling multiple participants due to network and hardware limitations.

Innovation Solution

A method for videoconferencing that utilizes a three-dimensional virtual space with avatars representing participants, allowing users to navigate and interact within a virtual environment, and adjusts audio volumes to simulate private or semi-private conversations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple video streams are transmitted to all participants in a conventional videoconferencing system, then each participant can see all speakers, but the system performance slows down due to bandwidth and hardware limitations

Engineering Contradiction:
Improvevideo stream transmission reliabilityVSAvoidsystem performance
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent implements spatial audio rendering where each participant's device renders audio streams with different characteristics based on their virtual position in the 3D space. Audio from different directions and distances is processed differently, creating localized audio experiences that mimic physical presence while maintaining system performance.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If all audio streams are mixed equally in virtual conferences, then all participants can hear all speakers, but private conversations become impossible and social connections are lost

Engineering Contradiction:
Improveaudio mixing simplicityVSAvoidprivate conversation capability
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The patent transitions from 2D screen-based videoconferencing to 3D virtual space with avatars. This dimensional change enables spatial audio rendering where sound originates from specific directional positions, allowing participants to have private conversations by positioning their avatars closer together while maintaining equal access to all audio streams through the spatial rendering system.

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

3Device complexity

If conventional videoconferencing displays rectangular video frames, then the interface is simple, but the sense of place and spatial awareness is lost

Engineering Contradiction:
Improveinterface simplicityVSAvoidsense of place
Core Design Contradiction:
Device complexityVSLoss of information

Solution Approach 1:

The patent replaces traditional 2D rectangular video frames with 3D avatar representations in a virtual space. Each participant is represented by an avatar with video displayed on it, positioned in a three-dimensional environment. This enables spatial awareness and sense of place while maintaining interface simplicity through standardized avatar models and automatic positioning.

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

Data Source

PatentUS12634413B2Two-dimensional view of a presentation in a three-dimensional videoconferencing environment
Publication Date: 2026.05.19 KATMAI TECH INC
  • US12634413B2 patent drawing
  • US12634413B2 patent drawing
  • US12634413B2 patent drawing

AI summary

Disclosed herein is a web-based videoconference system that allows for two-dimensional screen sharing within the virtual environment. In some embodiments, data specifying a three-dimensional virtual space. The three-dimensional virtual space comprises a plurality of participants and an avatar representing each of the plurality of participants. A presentation stream is received from a first client device of a first participant. The presentation stream is mapped onto a three-dimensional model of a presentation screen in the three-dimensional virtual space. A selection of the presentation screen is received from a second participant. A two-dimensional view of the presentation stream is rendered to the second participant.