Clock Signal Offset Detection for Precise Phase Synchronization
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Solution Overview
Problem
Existing methods for regulating clock signals between elements with different operation frequencies are inaccurate and cumbersome, leading to instability in digital systems due to manual adjustment of resistors and capacitors, which is not effective in controlling the offset range of clock signals.
Innovation Solution
A clock signal detector system utilizing flip-flops and signal delayers to detect and adjust the offset range of clock signals, allowing for precise regulation through the use of detecting signals and a phase compensator to synchronize clock signals between different elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual adjustment of resistors and capacitors is used to regulate clock signals, then the offset can be adjusted, but the control precision and accuracy are insufficient
Solution Approach 1:
The patent replaces the manual mechanical adjustment of resistors and capacitors with an automated electronic detection system using flip-flops and signal delayers. The detector automatically measures clock signal offset by comparing signals from different delayers, eliminating the need for manual component adjustment and providing precise digital control of the offset range.
Solution Approach 2:
The clock signal detector performs self-detection and self-regulation of the offset range. The system automatically detects the clock signal parameters through the flip-flop circuitry and adjusts the offset within the specified range without requiring external manual intervention, making the system self-sufficient in maintaining proper clock synchronization.
2Reliability
If manual adjustment of resistors and capacitors is used, then offset regulation is possible, but the system stability is compromised
Solution Approach 1:
The patent implements a feedback mechanism where the clock signal detector continuously monitors the offset range and provides detection results that can be used to adjust the clock signal regulation. The flip-flop-based detector compares clock signals from multiple delayers and generates feedback information about the offset status, enabling stable and accurate long-term clock synchronization.
3Ease of manufacture
If manual adjustment methods are used, then the offset can be regulated, but the device complexity and design difficulty increase
Solution Approach 1:
The patent extracts the complex manual adjustment mechanism (resistors and capacitors requiring precise manual setting) and replaces it with an integrated clock signal detector circuit. The detector functionality is separated into a dedicated module using flip-flops and signal delayers, simplifying the overall motherboard design by consolidating the offset regulation function into a self-contained detection and regulation system.
4Measurement precision
If initialization to clock signal is used, then basic offset control is achieved, but the offset range control is not accurate enough
Solution Approach 1:
The patent introduces dynamic detection capability through the flip-flop-based clock signal detector that can automatically adapt to different offset conditions. The system dynamically compares clock signals from multiple signal delayers with different delay times and automatically determines the offset range, providing accurate and adaptive control rather than static initialization-based control.
Data Source
AI summary
A clock signal detector is provided. The device comprises a plurality of signal delayers and a plurality of flip-flops for comparing the offset range of the clock signal between two different groups, and transmitting the resulted signal to a phase compensator, which is used to send a regulating clock signal to a clock generator. Therefore, the offset ranges of the clock signals from two different groups will be within the range of the system requirement, such that it can optimize the system operation.