Multi-Line Error-Correcting Transmission for Noise-Resistant LSI Links
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Solution Overview
Problem
Existing interfaces between signal processing LSIs face challenges in maintaining noise resistance and accurate data transmission as transmission speed increases, particularly in mobile devices where power consumption is a concern, and current error correction methods are insufficient to handle multiple bit errors.
Innovation Solution
A transmission system that calculates an error correction code and allocates coded data across multiple transmission lines, using padding data to ensure equal data allocation and dispersing errors across different lines, enhancing error correction capacity while maintaining high transmission speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the transmission speed of data is increased between LSIs, then the transmission capacity is improved, but the noise resisting property degrades and transmission errors occur more frequently
Solution Approach 1:
The patent divides the coded data into multiple segments and transmits them through different transmission lines simultaneously. By segmenting the data transmission, the system achieves higher overall transmission capacity while distributing noise exposure across multiple independent channels, thereby maintaining reliability even as speed increases
Solution Approach 2:
The patent changes the transmission parameters by using multiple transmission lines with different characteristics and allocating coded data strategically across them. This parameter diversification allows the system to achieve higher transmission speeds while the error correction code adapts to varying noise conditions on each line
2Reliability
If error correction code is used to correct transmission errors, then the reliability is improved, but the transmission speed is reduced due to decoding processing time
Solution Approach 1:
The patent applies error correction codes in advance during the data encoding phase before transmission. By performing the error correction preparation work preliminarily and distributing coded data across multiple lines, the system minimizes decoding processing time at the receiving end while maintaining strong error correction capability
Solution Approach 2:
The patent adds a spatial dimension to error correction by distributing coded data across multiple transmission lines simultaneously. This dimensional expansion allows parallel transmission of error-corrected data, maintaining high transmission speed while the error correction code operates effectively across the distributed channels
3Productivity
If multiple transmission lines are used to increase transmission capacity, then the productivity is improved, but the device complexity increases
Solution Approach 1:
The patent designs the transmission system with universal components that can handle multiple functions. The same encoding and decoding circuits are used across all transmission lines, and the error correction code operates uniformly regardless of which line carries the data, reducing overall circuit complexity despite using multiple lines
Solution Approach 2:
The patent merges the error correction functionality into the data transmission process itself by integrating the error correction code calculation and application within the existing transmission framework. This consolidation allows multiple transmission lines to operate with enhanced error correction without requiring separate complex error correction systems for each line
Data Source
AI summary
A transmission apparatus, including an error correction code calculation section adapted to calculate an error correction code from data of a transmission object as an information word is disclosed. The transmission apparatus further includes a division section adapted to allocate coded data which configures a codeword obtained by adding the error correction code determined by the calculation by the error correction code calculation section to the data of the transmission object for each predetermined number of units to a plurality of transmission lines. The transmission apparatus further includes a plurality of transmission sections provided corresponding to the plural transmission lines and adapted to transmit the coded data allocated by the division section to a reception apparatus through the transmission lines.