Pierce Oscillator Timing Control With Frequency Deviation Feedback
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Solution Overview
Problem
Existing time-sequence control systems in electronic devices face challenges due to frequency deviations in local clock signals generated by crystal oscillators, particularly in cheaper models, leading to interference and reduced accuracy.
Innovation Solution
A control method and apparatus that includes a Pierce oscillation network module, digital signal conversion, time setting control, detection, and adjustment modules to analyze and adjust time-sequence control data, using error data to improve accuracy by correcting frequency deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If cheaper crystal oscillators are used to generate local clock signals, then cost is reduced, but frequency deviation increases leading to reduced time sequence control accuracy
Solution Approach 1:
The patent implements a feedback mechanism by comparing the generated time-sequence control signals with actual time-sequence control signals to obtain error data. This error data is then used to adjust the frequency timing data, creating a closed-loop system that continuously corrects frequency deviations. The feedback process includes: obtaining error data between generated and actual signals, analyzing error data to determine frequency deviations, and adjusting frequency timing data based on error analysis to reduce future deviations.
Solution Approach 2:
The patent dynamically changes the frequency parameter of the local clock signal by adjusting frequency timing data based on detected errors. The system modifies oscillation frequency parameters in real-time to compensate for deviations caused by using cheaper crystal oscillators. This includes obtaining frequency timing data from error analysis and using it to adjust the Pierce oscillation network's output frequency.
2Measurement precision
If crystal oscillators with better manufacturing and materials are used, then frequency deviation is reduced improving time sequence accuracy, but cost increases
Solution Approach 1:
The system performs self-correction by automatically detecting its own frequency deviations and adjusting its parameters without external intervention. The control apparatus monitors its own output signals, compares them with actual required signals, and autonomously adjusts frequency timing data to correct deviations. This self-service mechanism eliminates the need for expensive high-precision crystal oscillators by enabling the system to self-correct using affordable components.
3Adaptability or versatility
If more time-sequence control signals are generated to control complex operations, then control capability is improved, but requirements for clock accuracy and signal number increase
Solution Approach 1:
The patent implements dynamic frequency adjustment where the clock signal parameters are not fixed but continuously adapted based on detected errors. The system dynamically modifies frequency timing data in response to operational requirements and detected deviations, allowing flexible generation of multiple time-sequence control signals while maintaining accuracy through real-time parameter adaptation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the accuracy of time sequence control by correcting frequency deviations, ensuring precise time-sequence control signals through real-time adjustments and alarms for persistent errors.
Implementation Method 1
Pierce oscillation network module composed of quartz crystal oscillators
Data Source
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AI summary
A control apparatus and method for a timing apparatus, The present invention pertains to the field of time-sequence control technologies of electronic devices. The timing device uses a control device, the apparatus includes a Pierce oscillation network module composed of quartz crystal oscillators, a digital signal conversion module, a time setting control module, a detection controlling module, an adjustment controlling module, and an output module, The present invention can greatly improve the accuracy of time sequence control and the accuracy of the output from the Pierce oscillation network module composed of quartz crystal oscillators.