MEG EEG Displacement Detection for Signal Annotation
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Solution Overview
Problem
Existing technologies face challenges in accurately analyzing brain neural activities due to movement of the measurement part during magnetoencephalography (MEG) and electroencephalography (EEG) measurements, leading to incorrect signal measurement and analysis.
Innovation Solution
An information display system that includes a displacement measurement unit to detect movement of the measurement part and a controller to display detection information on the display unit, allowing for real-time annotation and correction of signal waveforms, thereby preventing incorrect analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the measurement part is held securely to prevent movement, then measurement stability is improved, but the subject's brain activities are disturbed and correct measurement cannot be performed
Solution Approach 1:
The system continuously monitors the position of the measurement part and provides feedback by displaying position information on the display device. This allows operators to see when movement occurs and take appropriate actions, creating a closed-loop system that manages measurement part stability without physical restraint
Solution Approach 2:
The patent introduces a position detection device as an intermediary between the measurement part and the analysis system. This intermediary detects position changes and transmits this information to the display device, enabling indirect monitoring and management of measurement part stability without direct physical intervention
2Adaptability or versatility
If multiple types of biological signals are displayed simultaneously, then comprehensive analysis capability is improved, but the complexity of managing digital annotations across multiple signals increases
Solution Approach 1:
The patent implements a universal annotation system that works across multiple types of biological signals (EEG, ECG, EMG, etc.). The same annotation input interface and display mechanism handle all signal types uniformly, allowing comprehensive multi-signal analysis without increasing operational complexity for each additional signal type
Solution Approach 2:
The system merges the annotation management function across all biological signal types into a unified interface. Annotations can be input and displayed consistently for multiple signals simultaneously, combining what would otherwise be separate management systems into one cohesive operation
Data Source
AI summary
According to an embodiment, an information display system includes a displacement measurement unit, a display unit, and a controller. The displacement measurement unit measures displacement of a measurement part. The display unit displays a time axis of signal detection. The controller controls the displacement measurement unit and the display unit. When a signal that is output from the displacement measurement unit meets a given condition, the controller determines that displacement of the measurement part is detected and displays detection information representing that the displacement is detected in any one of a time position and a time area on the display unit in which the displacement is detected.