Error Rate Measurement with Latched Pattern Detection
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Solution Overview
Problem
Existing error rate measurement apparatuses lack real-time detection capabilities for instantaneous data patterns and require lengthy analysis times, making it difficult for users to visually recognize data patterns unless they are several hundred milliseconds long.
Innovation Solution
An error rate measurement apparatus with a head detection unit that identifies specific patterns like sequence blocks in real time, synchronized with a display unit to notify users instantly, and includes a latch unit to hold detection signals for immediate pattern recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an existing error rate measurement apparatus is used to measure continuous data, then measurement capability is provided, but real-time detection of instantaneous data patterns (approximately 1 ms) cannot be achieved and user notification is delayed due to GUI update cycles of approximately 100 ms
Solution Approach 1:
The patent segments the data stream into specific detectable patterns (sequence blocks, training sequences, packets) and implements dedicated detection mechanisms for each pattern type. This allows the system to detect instantaneous data patterns of approximately 1 ms duration by breaking down the continuous measurement task into discrete, detectable units with specific characteristics.
Solution Approach 2:
The patent introduces an intermediary detection mechanism that operates independently of the main measurement apparatus. This intermediary system detects specific patterns in real-time and triggers immediate user notification through separate channels (visual indicators, audio alarms, or external device notifications), bypassing the limitation of the main GUI update cycle.
2Measurement precision
If data patterns with very long cycles are analyzed, then comprehensive measurement is achieved, but analysis time becomes excessively long and real-time performance is lost
Solution Approach 1:
The patent performs preliminary actions by pre-defining and pre-configuring detection parameters for specific patterns before actual measurement begins. Patterns such as sequence blocks, training sequences, and packets are characterized in advance, allowing the detection apparatus to immediately recognize them during measurement without requiring lengthy analysis of the entire data cycle.
Solution Approach 2:
The patent implements partial detection by focusing on key characteristic portions of data patterns rather than analyzing the entire cycle. By detecting specific markers, headers, or unique sequences that identify pattern types, the system achieves comprehensive measurement capability while maintaining real-time performance, as these partial indicators are sufficient to identify and categorize the complete pattern.
Data Source
AI summary
There is provided an error rate measurement apparatus including: a display unit; a reference signal holding unit that holds a part of a head of the internal signal as a reference signal; a head detection unit that detects a head of the specific pattern in an input signal from the DUT by comparing the reference signal with the input signal; a detection signal output unit that outputs a detection signal synchronized with a timing at which the head of the specific pattern is detected by the head detection unit; a latch unit that holds the detection signal; and a control unit that displays a detection notification image indicating that the head of the specific pattern is detected by the head detection unit, on the display unit, during a period in which the detection signal is held by the latch unit.