Conference Terminal Real-Time Slide Marking
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Solution Overview
Problem
Conventional videoconference systems lack interactivity, as participants cannot mark slides in real-time, leading to reduced discussion efficiency and increased system complexity and costs due to the need for additional electronic whiteboards or remote collaboration systems.
Innovation Solution
A conference terminal and server system that superimposes mark data signals onto image data signals, allowing participants to add marks to slides in real-time without requiring extra hardware, using a hybrid image data signal generated by combining mark and image data streams through a H.239 auxiliary stream channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If H.239 protocol is used to create auxiliary stream channel for slide transmission, then slide transmission quality is improved, but interactivity is lost as participants cannot mark slides
Solution Approach 1:
The system segments the data transmission by using separate channels: H.239 auxiliary stream for high-quality slide transmission and mainstream video channel for real-time interaction. This segmentation allows both functions to operate independently without mutual interference, resolving the contradiction between transmission quality and interactivity.
Solution Approach 2:
The patent introduces an intermediary mechanism where mark operations are captured as images and transmitted through the video channel, which then overlays them on the slide display. This intermediary process enables interactivity while preserving the original high-quality slide transmission through H.239.
2Adaptability or versatility
If electronic whiteboard system is deployed to enable mark operations, then interactivity is improved, but system complexity and construction costs increase
Solution Approach 1:
The patent makes the conference terminal itself multi-functional by integrating both slide reception and mark operation capabilities into a single device. This eliminates the need for separate electronic whiteboard systems, reducing system complexity while maintaining interactivity.
Solution Approach 2:
The system merges the functions of slide display and mark operations into the conference terminal's existing hardware and software architecture. By combining these functions, the patent avoids the need for additional dedicated electronic whiteboard equipment, thereby reducing system complexity and construction costs.
3Adaptability or versatility
If remote collaboration system is used for desktop sharing and marking, then interactivity is improved, but system complexity, construction costs, and operational complexity increase
Solution Approach 1:
The conference terminal provides self-service functionality by enabling mark operations directly on received slides without requiring external remote collaboration systems. The terminal uses its own imaging and processing capabilities to capture, transmit, and display marks, making the system self-sufficient and reducing overall complexity.
4Adaptability or versatility
If marks are transmitted in real-time through video channel, then interactivity is improved, but motion video transmission may be affected
Solution Approach 1:
The system segments data transmission streams by sending mark operations through the video channel while maintaining separate high-quality transmission for slides through H.239. This segmentation ensures that mark transmission does not interfere with motion video quality, as each stream is handled independently with appropriate bandwidth allocation.
Data Source
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AI summary
A conference terminal, a conference server, a conference system, and a data processing method are provided. The conference terminal includes: a mark obtaining module, configured to obtain a mark data signal; an image obtaining module, configured to obtain an image data signal; a superimposing module, configured to superimpose the mark data signal onto the image data signal to generate a hybrid image data signal; and an outputting module, configured to output the hybrid image data signal. The present invention improves the interactivity between videoconference users and the discussion efficiency.