Serial Communication Error Logging Control
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Solution Overview
Problem
In serial communication, misalignment of packet data boundaries can lead to continuous error logging, causing overflow in the recording area and inaccurate error rate calculation due to mistaken error correction of misaligned packet data.
Innovation Solution
An electronic communication device with a controller that determines whether to start or stop logging error information based on the number of error bits in packet data, using a validity threshold to differentiate between valid and invalid packet data, thereby preventing overflow and improving error rate accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If error logging is continuously performed when synchronization failure occurs, then error detection capability is improved, but recording area overflows and error rate calculation becomes inaccurate
Solution Approach 1:
The patent changes the parameter of logging behavior from continuous to conditional based on error count thresholds. When the number of consecutive errors exceeds a threshold, logging is stopped to prevent overflow, while still maintaining error detection capability through selective logging of significant error events.
Solution Approach 2:
The logging mechanism dynamically adjusts its operation based on the current error state. The controller monitors error counts and automatically switches between logging and non-logging modes, making the system adaptive to varying communication conditions rather than static.
2Reliability
If error logging is continuously performed during synchronization failure, then error detection is maintained, but logging accuracy deteriorates due to misaligned packet data
Solution Approach 1:
The patent introduces an error count threshold as an intermediary criterion between error detection and logging action. This mediator filters out spurious errors caused by misalignment, allowing only significant error patterns to trigger logging, thus improving measurement precision while maintaining detection capability.
Solution Approach 2:
Instead of logging all errors indiscriminately, the patent applies partial action by selectively logging only those errors that exceed the threshold. This prevents the accumulation of invalid log entries from misaligned packets while still capturing genuine error conditions.
Data Source
AI summary
An electronic communication device includes a controller which controls, according to the number of bit data in which an error has occurred of packet data transferred in serial communication, whether to start logging of information about the error of the packet data or stop logging of information about the error of the packet data.