Distributed Video Presentation Control via Separate Channels
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Solution Overview
Problem
In distributed video presentation systems, existing technologies face challenges in maintaining synchronized video playback across geographically diverse viewer systems due to bandwidth and processing constraints, leading to lag disparities and loss of presenter control over video content.
Innovation Solution
A system that establishes separate video data channels and control signal channels, allowing the presenter system to have sole control over video playback on distributed viewer systems, ensuring synchronized video display through dedicated control messages and resynchronization mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video is served from the presenter's system or a remote host system, then the presenter can control the flow of media, but bandwidth and processing delays create lag in distributed viewer systems
Solution Approach 1:
The patent introduces a content delivery network (CDN) as an intermediary between the presenter's system and distributed viewer systems. The CDN distributes video content to edge servers located geographically closer to viewers, reducing transmission delays while maintaining centralized control through control signals sent to viewer devices. This resolves the contradiction by eliminating the direct bottleneck between presenter and all viewers.
Solution Approach 2:
The system segments video delivery into two independent channels: video data channels for content delivery and control signal channels for playback management. Video data is distributed through CDN edge servers to multiple viewers simultaneously, while control signals are sent individually to each viewer device. This segmentation allows scalable distribution without proportionally increasing control overhead.
2Loss of time
If the presenter distributes media files or links to geographically distributed video servers, then viewer lag is reduced, but the presenter loses control of video content and synchronization of playback
Solution Approach 1:
The patent divides the communication channels into separate video data channels and control signal channels. Video data flows through CDN edge servers to reduce lag, while control signals are transmitted separately to maintain presenter authority. This channel separation enables both fast content delivery and reliable centralized control simultaneously.
Solution Approach 2:
The system implements feedback mechanisms where viewer devices report their playback status and synchronization state back to the presenter's system. This allows the presenter to monitor and adjust playback control in real-time, ensuring synchronization is maintained even as content is distributed through multiple servers.
3Loss of time
If video-on-demand systems distribute video content from locations geographically closer to each viewer system, then lag for each viewer is minimized, but lag disparities among individual systems increase
Solution Approach 1:
The patent implements feedback loops where each viewer device reports its playback position and timing information to the presenter's system. The presenter's system uses this feedback to detect lag disparities and send corrective control signals to individual viewers, dynamically adjusting playback to maintain synchronization across all systems despite geographic distribution.
Solution Approach 2:
The system dynamically adapts playback control based on real-time conditions at each viewer location. Control signals are adjusted in real-time to account for varying network conditions and processing capabilities, allowing the system to optimize for both low individual lag and maintained synchronization across the distributed audience.
Data Source
AI summary
A system, method and program product for a distributed video presentation with presenter system control of video on viewer systems. The presenter system and the plurality of distributed viewer systems have a presentation application for viewing a video in a presentation mode. At least one video data channel is established for serving the video to the plurality of distributed viewer systems during the presentation mode. At least one video control signal channel is established for controlling display of the video on the plurality of distributed viewer systems. Each of the video data channels is separate from all of the video control signal channels and the presenter system has sole control over the at least one video control signal channel to control display of the video on the plurality of distributed viewer systems.