Unified .neg File Format for Synchronous Brain Activity Data Storage
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Solution Overview
Problem
Current technologies lack a method for synchronously storing photoelectrically synchronous brain activity data, integrating near-infrared and electroencephalographic signals, which is essential for comprehensive brain function analysis.
Innovation Solution
A data storage method that generates a .neg file format comprising basic information, near-infrared spectrum data, and brain electrical activity data segments, ensuring synchronous storage of near-infrared and brain electrical signals, with structured fields for compatibility and flexible configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate storage formats are used for near-infrared and electroencephalographic data, then existing storage compatibility is maintained, but synchronous storage and integrated analysis cannot be achieved
Solution Approach 1:
The patent merges near-infrared and electroencephalographic data into a single unified file format (.neg), combining previously separate storage systems. This allows synchronous storage of both data types with consistent time stamps while maintaining the ability to store and access each modality's data within the same file structure, enabling integrated analysis without sacrificing individual format compatibility.
Solution Approach 2:
The unified .neg file format serves multiple functions simultaneously: it stores near-infrared spectral data, electroencephalographic signals, time synchronization information, and experimental metadata. This multi-functional design allows a single file to replace multiple separate files while maintaining backward compatibility through structured data organization.
2Adaptability or versatility
If a unified data storage format is created for photoelectrically synchronous data, then synchronous storage is achieved, but file format complexity increases
Solution Approach 1:
The unified .neg file format is segmented into distinct data blocks: near-infrared data section, electroencephalographic data section, time synchronization section, and metadata section. Each segment is independently structured with clear delimiters and headers, allowing the complex format to be managed through modular organization rather than monolithic structure.
Solution Approach 2:
The patent introduces standardized data headers, time stamp formats, and synchronization markers as intermediary structures that mediate between the two different data modalities. These intermediaries provide a common framework that organizes heterogeneous data types without requiring complex ad-hoc integration logic.
3Loss of information
If detailed metadata fields are included for both near-infrared and electroencephalographic parameters, then data completeness is improved, but data processing complexity increases
Solution Approach 1:
Comprehensive metadata is segmented into modality-specific fields: near-infrared parameters (wavelengths, optical path lengths, sampling rates) are separated from electroencephalographic parameters (electrode positions, filtering settings, reference electrodes). This segmentation allows complete data capture while enabling selective processing based on the specific analysis needs.
Solution Approach 2:
The patent uses standardized parameter naming conventions and data types throughout the file format, transforming heterogeneous experimental parameters into a consistent structure. Time stamps, sampling rates, and channel identifiers follow uniform formats that simplify processing despite the diversity of underlying physiological parameters.
Data Source
AI summary
A method for storing data of photoelectrically synchronous brain activity recording, said method comprising: generating data when a photoelectrically synchronous brain activity detection system is operating; generating from said data a data storage file comprising a basic information data segment, a near-infrared spectrum data segment and a brain electrical activity data segment, and sequentially storing said data segments into a .neg file in binary form according to the above order. The method can store comprehensive test information, flexibly configure the near-infrared and brain electrical measurement information, and realize synchronous storage of near-infrared data and brain electrical data and maintain file version compatibility.