Transmission Terminal Additional Display Data Attachment
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Solution Overview
Problem
In video conference systems with a relay device, if the image at the destination side becomes invisible due to network congestion or insufficient processing capacity, users cannot determine if the communication partner has terminated the call or is temporarily holding it, leading to uncertainty and discomfort.
Innovation Solution
A transmission terminal attaches additional display data, such as a destination name or message, to the image data from the destination side, allowing users to understand the call status even when the image is not visible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If image data transmission is stopped due to network congestion or insufficient processing capacity, then communication reliability is improved, but information completeness deteriorates
Solution Approach 1:
The patent introduces a relay device as an intermediary that receives image data from the destination terminal, processes it (converting to black image data when necessary), and forwards it to the own terminal. This mediator enables the own terminal to display informative placeholder content (black screen with destination name) instead of experiencing complete information loss, thus resolving the contradiction between maintaining communication reliability under congestion and preserving information completeness.
2Stability of the object's composition
If only audio data is communicated during network congestion, then system stability is improved, but user experience deteriorates
Solution Approach 1:
The patent utilizes visual color changes (displaying a black screen instead of the actual image) to convey system state information to the user. When image data cannot be properly transmitted due to network congestion, the system displays a black screen with the destination terminal's name, providing visual feedback that maintains user awareness and improves user experience while the system remains stable and continues audio communication.
3Loss of information
If additional display data is attached to image data, then information completeness is improved, but data transmission load increases
Solution Approach 1:
The patent extracts only the essential information (destination terminal name) and separates it from the full image data transmission. Instead of transmitting complete image data that would consume excessive bandwidth, the system transmits only the necessary identification information along with simplified black image data, thereby maintaining information completeness while significantly reducing data transmission load.
Data Source
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AI summary
Disclosed is a transmission terminal that is for executing communication with another transmission terminal at a destination side by communicating with a relay device for relaying image data, and communicating with a transmission management system for managing transmission terminals. The transmission terminal includes a transmitter for transmitting, to the transmission management system, a request for additional display data, as a destination name of the other transmission terminal or a predetermined message; a receiver for receiving the additional display data that is transmitted from the transmission management system; and a display control unit for attaching the additional display data to data of an image that is transmitted from the other transmission terminal through the relay device and that does not show a subject at the destination side, wherein a display unit displays the data of the image to which the additional display data is attached.