Server-Based Video Call Effect Transmission System
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Solution Overview
Problem
Existing video call systems struggle to bi-directionally transfer and apply various effects in real time, as they rely on pre-encoded effects and may not function if the desired effect is absent on the reception-side device, limiting the ability to dynamically change effects based on network conditions.
Innovation Solution
A server-based system that stores visual and auditory content associated with effect identifiers, allowing for the extraction and transmission of selected effects to both transmission and reception-side devices during a video call, while optimizing parameters like transmission type, screen resolution, and data rate based on network traffic to minimize impact on the video call.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pre-encoded effects are synthesized with video at image filtering level, then video call functionality is maintained, but bi-directional transfer of variety of effects in real time becomes difficult
Solution Approach 1:
The patent introduces a server as an intermediary component that stores multiple encoded effects and manages their distribution between transmission-side and reception-side electronic devices. This mediator enables bi-directional effect transfer without requiring complex local storage and management of all effects at each device, thus increasing effect variety while controlling system complexity.
Solution Approach 2:
The patent moves the effect storage and management function from the device level (two-dimensional local storage) to a networked server level (adding a third dimension of centralized cloud storage). This dimensional shift allows effects to be shared bi-directionally between devices through the server, enabling real-time effect variety without requiring each device to independently store all effects.
2Reliability
If effect corresponding to received identifier is absent in reception-side electronic device, then effect cannot be applied, but real-time effect application is required
Solution Approach 1:
The server pre-stores multiple encoded effects in its database before any video call occurs. When an effect identifier is transmitted during the call, the server can immediately retrieve and forward the corresponding pre-prepared effect data to the reception-side device, ensuring both reliability (effect is available) and real-time adaptability (effect is delivered on demand).
Solution Approach 2:
Instead of requiring the reception-side device to have original effect files stored locally, the system transmits effect identifiers and retrieves corresponding effect copies from the server's database. This copying mechanism ensures that the same effect can be reliably delivered to any reception-side device that needs it, regardless of what effects are locally stored at the receiving device.
3Adaptability or versatility
If effect is added to video call, then video call functionality is enhanced, but network traffic and call quality may be degraded
Solution Approach 1:
The patent extracts only the essential effect identifier from the transmission-side device and sends it to the server, rather than transmitting the entire effect data file. The server then retrieves and forwards only the specific effect data corresponding to that identifier. This extraction approach minimizes network traffic by transmitting only necessary information while still enabling full effect functionality.
Solution Approach 2:
The system changes the transmission parameter from sending complete effect files (large data size) to sending effect identifiers (small data size). This parameter change in data transmission size significantly reduces network bandwidth consumption while maintaining the ability to deliver complete effect functionality through server-mediated retrieval and forwarding of the actual effect data.
Data Source
AI summary
A video call method and system may use a two-way transmission of a visual effect or an auditory effect. A server may manage and store content that includes visual information or auditory information as an effect to apply to a video call in association with an effect identifier. A server may receive, during the video call, an effect identifier and may transmit the visual information or audio information associated with the effect identifier to a reception-side electronic device together with a data packet for the video call.