Parallel Transmission Lines for Error Correction
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Solution Overview
Problem
The increasing demand for higher transmission speeds between signal processing LSIs leads to degraded noise resistance, making it difficult to correctly transmit data, especially when power reduction is necessary for mobile devices, and existing error correction methods struggle to handle the increased likelihood of transmission errors.
Innovation Solution
A transmission system that enhances error correction capacity by using multiple transmission lines to distribute error correction codes across different lines, allowing for parallel processing and error dispersion, thereby reducing the need for re-transmissions and improving real-time data transmission reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmission speed is increased to satisfy growing data handling demands, then productivity improves, but noise resistance degrades making correct data transmission difficult
Solution Approach 1:
The invention divides the transmission system into multiple parallel transmission lines (e.g., 4 lines) that transmit different segments of the same data simultaneously. This segmentation allows the system to achieve high transmission speeds through parallel processing while maintaining reliability by distributing data across multiple channels, so that noise affecting one line does not compromise the entire transmission.
Solution Approach 2:
The invention implements a feedback mechanism where the transmitting apparatus sends transmission status information (indicating whether data was successfully transmitted or requires retransmission) to the receiving apparatus. The receiving apparatus uses this feedback to determine whether to request retransmission, enabling the system to maintain high reliability even at high transmission speeds by correcting errors through controlled retransmissions.
2Use of energy by moving object
If voltage is reduced to decrease power consumption in mobile apparatus, then energy usage improves, but data transmission correctness deteriorates
Solution Approach 1:
By segmenting data across multiple transmission lines, the system can use lower voltage per line while maintaining overall transmission reliability. The parallel structure compensates for the reduced signal strength from lower voltage, allowing mobile devices to reduce power consumption without sacrificing data correctness.
Solution Approach 2:
The transmitting apparatus prepares retransmission capability in advance by implementing a feedback mechanism that can request retransmission of data if transmission errors occur. This prior cushioning allows the system to use lower transmission voltages (reducing power consumption) while maintaining reliability through the safety net of potential retransmissions.
3Reliability
If error correction capacity is increased to handle more transmission errors, then reliability improves, but device complexity increases
Solution Approach 1:
Instead of implementing a single complex error correction system, the invention segments the transmission into multiple simpler parallel lines with basic error detection. Each line uses simple parity or checksum verification, and the overall system achieves high error correction capacity through the combination of multiple lines and feedback-based retransmission, avoiding the need for complex single-line error correction circuits.
Data Source
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AI summary
Disclosed herein is 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; a division section adapted to allocate coded data which configure 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; and 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.