Multiband Multimode Terminal Codec Segmentation
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Solution Overview
Problem
Conventional mobile communication terminals are unable to efficiently multitask multiple multimedia functions simultaneously, such as operating an MP3 player and camera, due to limitations in processing resources and task management.
Innovation Solution
An MB-MM mobile communication terminal is designed with multiple codec units that can be used simultaneously or independently, featuring a master modem and a slave modem that manage data processing through a codec unit choice signal and NACK/ACK signaling to enable simultaneous operation of multiple multimedia functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple multimedia functions are operated simultaneously in conventional terminals, then processing resources are insufficient, but if a single processor is used to handle multiple functions alternatively, then processing efficiency and resource availability for each function are reduced
Solution Approach 1:
The terminal is divided into multiple independent modems (first modem, second modem, etc.), each capable of independently processing multimedia functions. This segmentation allows parallel processing of multiple functions without resource contention, as each modem has dedicated processing resources while still being part of the integrated terminal system.
Solution Approach 2:
Each modem is designed with universal capability to handle multiple multimedia functions (audio, video, data processing). The modems can be dynamically selected and configured based on the specific function needed, allowing the system to perform various multimedia tasks simultaneously through different modem instances rather than requiring specialized hardware for each function.
2Productivity
If a single codec unit is used for processing, then resource allocation is simplified, but simultaneous operation of multiple multimedia functions cannot be achieved
Solution Approach 1:
The single codec unit is segmented into multiple independent codec units, with each modem having its own dedicated codec unit. This allows multiple multimedia functions to be processed simultaneously without resource contention, as each function can be assigned to a different modem-codec pair, enabling true parallel processing of audio, video, and data functions.
Solution Approach 2:
Instead of sharing a single codec unit, the system creates multiple copies of the codec unit, each associated with a specific modem. This copying approach ensures that each multimedia function has dedicated processing resources while maintaining the benefits of having multiple modems available for different functions simultaneously.
3Device complexity
If codec units are processed alternatively by the same processor, then device complexity is reduced, but processing resources available for each signal are reduced
Solution Approach 1:
The processing system is segmented into multiple independent processing chains, with each modem having its own dedicated processor and codec unit. This segmentation ensures that processing resources are not shared alternatively but are allocated permanently to each function, providing full processing power to each multimedia signal simultaneously without time-multiplexing overhead.
Data Source
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AI summary
The present invention is directed to an MB-MM mobile communication terminal. According to a preferred embodiment of the present invention, an MB-MM mobile communication terminal having multiple multimedia functions comprises a first modem comprising a first codec unit, and a second modem comprising a second codec unit. The first modem controls the first codec unit to process data and outputs a data processing order to have the second codec unit process data if the first codec unit is processing other data. The second modem activates the second codec unit if the data processing order is inputted and controls the second codec unit to process data corresponding to the data processing order. The present invention enables using multiple codec units simultaneously or independently in an MB-MM mobile communication terminal