Video Classroom Two-Way Interaction Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current video conferencing and telepresence services are limited in their ability to support full two-way interaction among a large number of locations, often providing only one-way communication or limited two-way interaction.
Innovation Solution
A method and system that enables full two-way interaction by selectively transmitting audio and video streams across a network, allowing for one-to-one, one-to-many, many-to-one, or many-to-many communication, with adjustable frame rates and resolutions based on the subject matter and number of participants, using a network server to manage and distribute these streams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If video conferencing services support a large number of locations, then the number of participants increases, but the quality of two-way interaction deteriorates
Solution Approach 1:
The system segments video streams into multiple quality levels (e.g., high definition for presenters, standard definition for participants) and transmits different versions to different locations. This allows the system to support many locations while maintaining acceptable interaction quality for each user based on their role and network conditions.
Solution Approach 2:
Different video streams are assigned different quality characteristics based on local requirements. Presenter videos are transmitted with higher resolution and frame rates to multiple participant locations, while participant videos are transmitted at lower quality to the presenter. Each location receives optimized video quality appropriate for its function in the conference.
2Manufacturing precision
If video streams are transmitted with high resolution and frame rate to all participants, then video quality improves, but network bandwidth consumption increases
Solution Approach 1:
The system applies different video quality levels to different streams based on local needs. Presenter videos are transmitted in high definition to all participant locations where they will be displayed on large screens, while participant camera videos are transmitted at lower resolution since they appear smaller on presenter displays and are viewed primarily in thumbnail form.
Solution Approach 2:
The system transmits video at higher quality than strictly necessary for some streams (presenters to participants) while transmitting at lower quality for others (participants to presenter). This partial application of high quality where most needed achieves acceptable overall video quality across all locations while conserving bandwidth.
3Loss of information
If all audio and video streams are transmitted to all locations, then interaction completeness improves, but system complexity increases
Solution Approach 1:
The system segments audio and video streams into distinct channels (presenter audio, participant audio, presenter video, participant video) and manages transmission of each channel independently to appropriate locations. This segmentation simplifies the routing logic compared to transmitting all streams to all locations, as each stream type can be handled by dedicated transmission paths.
Data Source
AI summary
A method, system, and computer program product for providing full two-way interaction among participants at a large number of locations. A method for providing presentation services may comprise receiving an audio stream and a plurality of video streams of a presentation, wherein at least some of the plurality of transmitted video streams have different frame rates, resolutions, or both, receiving an audio stream and a video stream of each of a plurality of participants to the presentation, selectively transmitting the audio stream and the plurality of video streams of the presentation and the audio stream and the video stream of each of the plurality of participants to a presentation location and to each of the plurality of participants.