Multimedia Stream Segmentation for Audio Terminal Compatibility
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Solution Overview
Problem
Conventional communication terminals with limited processing capacity, such as audio terminals, cannot receive and process video data from multimedia communication terminals, leading to user frustration and inefficient resource utilization in both terminals and networks.
Innovation Solution
A method that separates multimedia streams into audio and video sub-streams, allowing the audio terminal to receive the audio sub-stream while the video sub-stream is transmitted to a rendering device capable of processing video, enabling users to view their interlocutor on a separate device during a call.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If video data is transmitted from a multimedia communication terminal to an audio terminal, then the multimedia terminal can provide video content, but the audio terminal cannot process or display the video data, leading to user frustration and wasted resources
Solution Approach 1:
The multimedia stream is segmented into separate audio and video sub-streams. The audio sub-stream is transmitted to the audio terminal for processing, while the video sub-stream is transmitted to a rendering device capable of displaying video. This segmentation allows each terminal to process only the data type it can handle, eliminating wasted processing resources on incompatible terminals.
Solution Approach 2:
A rendering device acts as an intermediary between the multimedia terminal and the audio terminal. The rendering device receives the video sub-stream from the multimedia terminal and displays it, while the audio terminal continues to receive and process the audio sub-stream. This intermediary solution enables video functionality without requiring the audio terminal itself to have video processing capabilities.
2Productivity
If a multimedia communication terminal transmits video data to an incompatible audio terminal, then the transmission resources are wasted, but transmitting only audio data limits the functionality for users who could benefit from video
Solution Approach 1:
The solution adds a spatial dimension to the communication system by introducing a separate rendering device. Instead of attempting to provide video functionality within the audio terminal's constraints, the system creates a separate video output channel through the rendering device. This allows video content to be delivered without compromising the audio communication channel.
Solution Approach 2:
The multimedia communication terminal is designed to support multiple transmission modes: it can transmit both audio and video sub-streams simultaneously to different destinations. This multi-functionality allows the terminal to adapt to different terminal capabilities - providing full multimedia output when possible, and audio-only output when necessary, without sacrificing overall system efficiency.
3Ease of operation
If a user initiates a video call from a multimedia terminal to an audio terminal, then the call cannot be established, requiring the user to re-initiate an audio call, causing time loss and frustration
Solution Approach 1:
The system performs preliminary capability detection before attempting to establish a video call. When the multimedia terminal detects that the target terminal is an audio terminal without video capabilities, it automatically adjusts the call setup to transmit only the audio sub-stream to the audio terminal while routing the video sub-stream to a rendering device. This preliminary adaptation eliminates the need for users to manually switch between video and audio call modes.
Data Source
Figure 1A~1C
Figure 2
Figure 4a~4c
AI summary
The invention relates to a method of communication to a user's terminal, including a step of transmitting a multimedia stream comprising a component of a first type and a component of a second type. According to the invention, such a method comprises the following steps: - detecting an inability of said terminal to process said component of the second type; - separating said multimedia stream into a first sub-stream carrying the component of the first type and a second sub-stream carrying the component of the second type; - transmitting said first sub-stream to said terminal; - transmitting said second sub-stream to a playback device accessible to said user and capable of processing a stream of the second type; and - authentication, granting access authorization to said second sub-stream for said playback device, using an identifier of said terminal, provided to said playback device.