Adaptive Multimedia Transcoding for Terminal Compatibility

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Solution Overview

Problem

In the IP multimedia subsystem (IMS) environment, mobile terminals with different specifications cannot seamlessly reproduce multimedia data due to varying decoder standards, leading to issues like incompatible image and video resolutions, resulting in wasted resources and suboptimal performance.

Innovation Solution

An adaptive transcoding system that adjusts multimedia data according to the receiver's equipment specifications, using a database and application server to transcode data and provide necessary plug-in software for decoding formats not supported by the terminal, ensuring compatibility across different mobile terminals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If multimedia data is transmitted according to transmitter terminal specifications, then the transmitting terminal can maintain its original quality, but the receiving terminal cannot reproduce the data due to specification mismatches

Engineering Contradiction:
Improvemultimedia data qualityVSAvoidterminal compatibility
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting multimedia data parameters (resolution, bitrate, format) based on the receiving terminal's specifications. The system modifies encoding parameters to match the receiver's capabilities, enabling compatible reproduction while maintaining optimal quality for each device type.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces an intermediary mechanism (server or protocol layer) that mediates between transmitter and receiver specifications. This intermediary analyzes both terminals' capabilities and performs adaptive transcoding or format conversion, acting as a bridge that resolves specification mismatches without compromising either terminal's functionality.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If multimedia data is transmitted in high resolution, then image and video quality is improved, but resource wastage increases due to incompatible resolutions

Engineering Contradiction:
Improveimage and video qualityVSAvoidresource wastage
Core Design Contradiction:
Manufacturing precisionVSLoss of energy

Solution Approach 1:

The system dynamically changes resolution parameters based on the receiving terminal's display capabilities. Instead of transmitting fixed high-resolution data, the system adjusts resolution parameters to match the receiver's screen size and processing capacity, eliminating resource wastage while maintaining optimal visual quality for each device.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies partial action by transmitting only the necessary amount of data required for the receiving terminal's capabilities. Rather than always transmitting full high-resolution data, the system transmits partial data sets optimized for each terminal, reducing unnecessary resource consumption while maintaining adequate quality.

Inventive Principle:
Principle #16Partial or excessive action

3Adaptability or versatility

If various decoder standards are supported, then compatibility across terminals is improved, but device complexity increases

Engineering Contradiction:
Improveterminal compatibilityVSAvoiddecoder complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent uses an intermediary server or protocol layer that handles decoder standard compatibility. Instead of requiring each terminal to support multiple decoders, the intermediary performs format conversion and transcoding, reducing terminal complexity while maintaining broad compatibility across different device specifications.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system extracts the complexity of supporting multiple decoder standards from the terminal devices and relocates it to a centralized server or network layer. This extraction allows terminals to remain simple while the system as a whole maintains compatibility with various standards through the externalized decoding capability.

Inventive Principle:
Principle #2Taking out (Extraction)

4Adaptability or versatility

If adaptive transcoding is implemented, then compatibility between different terminals is improved, but processing time increases

Engineering Contradiction:
Improveterminal compatibilityVSAvoidtranscoding time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-analyzing terminal specifications and pre-determining optimal encoding parameters before actual multimedia transmission. The system performs capability assessment and parameter optimization in advance, reducing the time required during actual transcoding operations while maintaining compatibility.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where terminal capability information is exchanged and used to adjust transcoding parameters dynamically. This feedback loop enables the system to optimize processing time by selecting appropriate encoding strategies based on real-time capability matching, reducing unnecessary transcoding operations.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS7983246B2Multimedia access system
Publication Date: 2011.07.19 LG ELECTRONICS INC
  • US7983246B2 patent drawing
  • US7983246B2 patent drawing
  • US7983246B2 patent drawing

AI summary

A multimedia access system includes: a database including user equipment spec information; an application server for transcoding multimedia data to be transmitted in accordance with user equipment spec information of a receiver side in the database; and an addressing unit for addressing a transmission packet so that that the multimedia data to be transmitted is transcoded by the application server.