Wireless Terminal Codec Compatibility for Video Calls
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Solution Overview
Problem
Current wireless mobile phones cannot exchange video data if the codecs of the user's and the other party's wireless terminals are not compatible, leading to decoding issues during video communication.
Innovation Solution
A method that involves checking and storing the codecs of the other party's wireless terminal, and encoding image data using the compatible codec to ensure seamless video data transmission in video telephone mode, even if the codecs differ.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the wireless terminal uses its own codec for encoding image data, then the encoding process is simple and fast, but the image data cannot be decoded by the other party's wireless terminal if codecs are incompatible
Solution Approach 1:
The system performs preliminary actions by checking and storing the codec information of the other party's wireless terminal before actual video communication occurs. This advance preparation allows the terminal to select a compatible codec in advance, avoiding compatibility issues during the communication process while maintaining efficient encoding.
Solution Approach 2:
The encoding codec is made dynamic rather than fixed. The system can switch between different codecs based on the compatibility requirements of the communication partner. This dynamic selection allows the terminal to adapt its encoding approach to ensure both efficient processing and successful decoding by the other party.
2Reliability
If the wireless terminal checks and stores codec information of the other party, then codec compatibility is improved, but the communication process becomes more complex
Solution Approach 1:
The complex task of codec compatibility checking is performed in advance during the initial connection phase, rather than during active communication. The system stores the codec information for future use, so that subsequent video communications can proceed smoothly without repeated complexity.
Solution Approach 2:
The system automatically checks, compares, and stores codec information without requiring manual intervention. This self-service approach handles the complexity internally, presenting a simple interface to the user while ensuring compatibility through automated codec selection.
Data Source
AI summary
Disclosed is a method of communicating image data to a second communications device from a first communications device while the first communications device is in an image communications mode of operation. The method includes the steps of checking the codecs of the second communications device when receiving an image communication; storing the codecs of the second communications device if the codecs of the first communications device do not match with the codecs of the second communications device; and encoding selected image data using one of the codecs of the second communications device when the encoded selected image data is to be transmitted to the second communications device.