Phase Detection Using Neighboring Pulses for Timing Mismatch
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In electronic devices, the asynchronous operation of multiple units due to varying signal coupling line positions and characteristics leads to inconsistent timing of operation signals, making accurate phase detection challenging, especially when the low state retention time of control signals exceeds a predetermined threshold.
Innovation Solution
A phase detection method and system where a controller generates a second control signal with multiple neighboring pulses when the low state retention time is above a threshold, and adjusts the signal to include fewer pulses when below the threshold, ensuring accurate phase detection results by filtering out uncertain pulses based on the low state retention time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the low state retention time of control signals is increased to accommodate signal coupling line characteristics, then signal integrity is improved, but phase detection accuracy deteriorates
Solution Approach 1:
The phase detection system dynamically adjusts the detection method based on the low state retention time of control signals. When the retention time exceeds a predetermined threshold, the system activates a special phase detection mode that accounts for signal distortion, whereas conventional detection is used for shorter retention times. This dynamic adaptation resolves the contradiction by optimizing detection accuracy for different signal characteristics.
Solution Approach 2:
The system changes the detection parameters based on the control signal characteristics. Specifically, it monitors the low state retention time and switches between different phase detection algorithms - using standard detection for normal cases and a corrected detection method when retention time exceeds the threshold. This parameter-based approach allows the system to maintain both signal integrity and detection accuracy.
2Productivity
If operation speed is increased to improve productivity, then processing efficiency is improved, but timing synchronization between operation units deteriorates
Solution Approach 1:
The system implements feedback mechanisms where phase detection results are continuously monitored and used to adjust timing synchronization. The phase detection unit provides feedback about timing differences between operation units, and the controller uses this information to compensate for synchronization errors, enabling high-speed operation while maintaining timing stability.
Solution Approach 2:
The system performs preliminary phase detection and timing calibration before high-speed operations begin. By pre-synchronizing the operation units and establishing accurate timing references in advance, the system ensures that subsequent high-speed operations maintain proper synchronization without requiring continuous adjustment during critical operations.
3Reliability
If multiple neighboring pulses are generated in the second control signal to improve phase detection accuracy, then detection reliability is improved, but signal complexity increases
Solution Approach 1:
The system segments the phase detection process into distinct phases: generating multiple neighboring pulses in the second control signal for accurate phase measurement, then selectively using only the first pulse for actual phase detection when retention time exceeds the threshold. This segmentation allows the system to benefit from multiple pulses for measurement accuracy while avoiding the complexity of processing all pulses.
Solution Approach 2:
The system extracts and uses only the necessary information from the multiple neighboring pulses. Specifically, it identifies and utilizes the first pulse for phase detection while disregarding subsequent pulses when the retention time condition is met. This extraction approach maintains detection reliability through multiple pulse generation but reduces signal processing complexity by using only the essential pulse.
Data Source
AI summary
A phase detection method includes providing by a controller a second control signal having two or more neighboring pulses when the time during which a state of a second control signal is retained is a predetermined time or more, receiving by the controller phase detection results of a phase of a first control signal different from the second control signal in response to the second control signal, and determining by the controller a phase detection result based on a first pulse of the two neighboring pulses of the second control signal, of the phase detection results.