Video Conference Relay Unit Suppresses Video Loop
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Solution Overview
Problem
When multiple conference systems cooperate, video images are often subjected to a 'video loop' phenomenon where the combined conference video is repeatedly transferred, leading to a mirrored display of the same video image, causing inefficiencies and disruptions in video conferencing.
Innovation Solution
A conference system configuration that includes a relay unit to transmit only combined video images from one conference system to another, while excluding the video image of its own site, thereby preventing the video loop and ensuring seamless video sharing between systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If video images are transferred between multiple conference systems, then video sharing capability is improved, but video loop phenomenon occurs causing mirrored display
Solution Approach 1:
The patent extracts and removes the own-site video image from the combined video stream before transmission to other conference systems. The relay device separates the harmful component (own-site video that would cause looping) from the useful component (other sites' videos that need to be shared), transmitting only the useful portion to prevent the video loop phenomenon while maintaining video sharing capability.
Solution Approach 2:
The relay device acts as an intermediary between conference systems, processing and modifying video streams before transmission. It receives combined video images, removes the own-site portion, and transmits the cleaned video stream to other systems, thereby mediating the video transfer process to prevent harmful looping while enabling useful sharing.
2Productivity
If combined video images are transmitted between conference systems, then collaboration efficiency is improved, but system complexity increases
Solution Approach 1:
The patent segments the video transmission process into distinct functional parts: video reception, own-site video identification and removal, and clean video transmission. The relay device divides the combined video stream processing into manageable segments, handling each aspect separately to improve collaboration efficiency while keeping the processing complexity organized and controllable.
Data Source
AI summary
A video conference apparatus includes a relay unit that is configured to transmit video image data acquired at a site of a first conference system to a second terminal provided in a second conference system and transmit video image data of the second conference system to a first terminal provided in the first conference system. The relay unit is configured to transmit only a combined video image of video images at respective sites of the first conference system to the second terminal as first video image data, and transmit a video image sent from the second terminal to the first terminal as second video image data.