Dynamic Physiological Signal Storage Interval Adjustment
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Solution Overview
Problem
Current portable medical devices for recording physiological signals often use fixed time intervals for data storage, which may not be optimal for capturing abnormal or noisy signals, potentially leading to inadequate data for accurate remote diagnosis.
Innovation Solution
An apparatus and method that dynamically adjust the time interval for storing physiological signals based on real-time analysis, allowing for extended recording when signals are abnormal or noisy, ensuring sufficient data is collected for accurate remote medical assessment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed time interval is used for storing physiological signals, then the device operation is simple and storage capacity is preserved, but the ability to capture abnormal or noisy signals is insufficient
Solution Approach 1:
The patent implements a dynamic time interval adjustment mechanism where the storage interval is automatically modified based on real-time signal quality assessment. When abnormal or noisy signals are detected, the system extends the storage interval to capture more data points, ensuring reliable signal capture while adapting to varying signal conditions rather than using a static fixed interval.
Solution Approach 2:
The system incorporates a feedback loop that continuously monitors signal quality metrics and uses this information to adjust the storage interval. The signal quality assessment feeds back to the storage control mechanism, creating a closed-loop system that automatically optimizes data capture based on actual signal conditions, improving reliability without requiring complex manual intervention.
2Reliability
If the storage interval is extended to capture more signal data, then signal capture reliability is improved, but storage capacity is consumed faster
Solution Approach 1:
The patent dynamically changes the time interval parameter for signal storage based on signal quality conditions. During normal signal conditions, a shorter interval is used to conserve storage capacity. When abnormal or noisy signals are detected, the interval is extended to capture sufficient data for accurate analysis, thus optimizing the balance between reliability and storage consumption.
Solution Approach 2:
The system applies different storage intervals to different time segments based on local signal quality characteristics. Rather than using a uniform interval throughout, the storage strategy is localized to specific time periods where signal abnormalities occur, ensuring reliable capture only when necessary and preserving storage capacity during normal operation.
3Measurement precision
If real-time signal analysis is performed to adjust storage interval, then signal capture accuracy is improved, but device complexity increases
Solution Approach 1:
The system performs self-assessment of signal quality using built-in analysis algorithms that evaluate signal characteristics and automatically determine appropriate storage intervals. The device serves itself by autonomously monitoring its own signal quality and making storage decisions without external intervention, improving detection accuracy while maintaining manageable complexity through automated self-regulation.
Solution Approach 2:
The patent implements preliminary signal quality assessment before final storage decisions are made. The system pre-analyzes incoming signals to identify potential abnormalities, and based on this preliminary evaluation, proactively adjusts the storage interval to ensure adequate data capture, thereby improving measurement precision through advance preparation rather than reactive processing.
Data Source
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Figure 3A~3B
AI summary
An apparatus for recording physiological signal is provided. The apparatus includes a storage unit, a signal analyzer, and a controller. The storage unit is configured for storing a physiological signal of a user during a time interval. The signal analyzer is configured for analyzing the physiological signal of the user to provide an analysis result. The controller is configured for changing the time interval according to the analysis result.