Video Calling via Separate Display Device
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Solution Overview
Problem
Conventional video calling systems in mobile communication networks are limited to displaying video images only on the mobile communication terminals, requiring users to hold a camera and suffer from poor display of high-quality video due to small screen sizes.
Innovation Solution
A method that allows video calling through a separate display device by transferring IP information of the display device to mobile communication terminals, enabling video data to be transmitted and received from the display, thereby allowing users to view video calls on larger devices like TVs or computer monitors without compromising video quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If video calling is performed through mobile communication terminals only, then the system structure remains simple, but the display quality deteriorates due to small screen sizes
Solution Approach 1:
The patent introduces a display device as an intermediary component between the mobile communication terminal and the video call output. The terminal transmits video data to the display device, which then renders the high-quality video output, resolving the contradiction between maintaining simple terminal structure and achieving high display quality.
2Ease of operation
If users hold cameras during video calls, then direct communication between terminals is maintained, but user convenience deteriorates
Solution Approach 1:
The display device takes over the video display function, freeing the user from the requirement to hold the camera. The system automatically manages video transmission between the terminal and display device, improving ease of operation without adding significant complexity to user interaction.
3Adaptability or versatility
If video is transmitted only between terminals, then the communication path remains direct, but adaptability deteriorates as additional display options are limited
Solution Approach 1:
The display device is designed to receive and display video data from the mobile communication terminal, adding a universal display function to the system. This multi-functional approach allows the same terminal to support both direct terminal-to-terminal video calls and terminal-to-display video output, enhancing adaptability without fundamentally complicating the communication architecture.
Data Source
AI summary
Disclosed is a video calling method capable of providing video through a separate display over a VoIP network, which can transfer IP information of a specified display device to a mobile communication terminal, and provide video data transfer for a video call through the specified display device. According to the video calling method, a first mobile communication terminal connects a video calling service with a second mobile communication terminal, and receives a request to change a device for transmitting/receiving the video to/from the second mobile communication terminal to a separate display. The first mobile communication terminal transfers information about the display to the second mobile communication terminal, and controls the second mobile communication terminal to transmit/receive the video to/from the display. The first mobile communication terminal then transfers information about the second mobile communication terminal to the display, and controls the display to transmit/receive the video to/from the second mobile communication terminal.