Brain State Representation for Cross-Device Biomarker Prediction

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Solution Overview

Problem

Existing biosignal data analysis methods struggle with dimensionality, noise, and device variability, leading to inefficiencies in processing and accuracy when determining neurological biomarkers.

Innovation Solution

A system and method that transforms biosignal data into a standardized brain state representation, segmenting it into beneficial and non-beneficial segments, and using a unified model to predict biomarkers across diverse devices and users, enabling efficient and accurate biomarker determination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If biosignal data is processed using existing analysis methods, then biomarker determination can be performed, but computational load is high and processing efficiency is low due to dimensionality and noise

Engineering Contradiction:
Improveprocessing efficiencyVSAvoidcomputational load
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the brain state representation into multiple segments, where each segment corresponds to a specific biomarker or aspect of brain function. This segmentation allows parallel processing of different biomarkers, reducing overall computational load while maintaining comprehensive analysis.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts only the beneficial segments from the brain state representation that are relevant to specific biomarkers, discarding non-beneficial segments. This extraction process reduces the dimensionality of the data that needs to be processed, thereby decreasing computational load and improving processing efficiency.

Inventive Principle:
Principle #2Taking out (Extraction)

2Adaptability or versatility

If biosignal data from diverse devices is analyzed, then versatility is improved, but measurement precision deteriorates due to device variability

Engineering Contradiction:
Improvedevice compatibilityVSAvoidbiomarker accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent creates a universal brain state representation that can be generated from biosignal data collected by diverse devices with different configurations. This universal representation serves as a common intermediary format that maintains the essential brain state information while being device-agnostic, thereby enabling versatile device compatibility without sacrificing measurement precision.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The brain state representation acts as an intermediary between the raw biosignal data from diverse devices and the final biomarker determination. This intermediary transformation standardizes the data from different device configurations into a unified format, eliminating device variability effects while preserving the underlying brain state information needed for accurate biomarker measurement.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If full brain state representation is processed, then measurement precision is maintained, but loss of time increases due to processing complexity

Engineering Contradiction:
Improvebiomarker accuracyVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent extracts only the beneficial segments from the brain state representation that are relevant to specific biomarkers, discarding non-beneficial segments. This extraction process reduces the dimensionality of the data that needs to be processed, thereby decreasing processing time while maintaining the precision needed for accurate biomarker determination.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial processing by focusing only on the necessary segments of the brain state representation that contribute to biomarker determination. Rather than processing the entire brain state representation in full detail, the system selectively processes only the relevant portions, reducing processing time while maintaining sufficient measurement precision for the intended applications.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS20250355496A1System and method for biosignal data transformation
Publication Date: 2025.11.20 EMOTIV INC
  • US20250355496A1 patent drawing
  • US20250355496A1 patent drawing
  • US20250355496A1 patent drawing

AI summary

A method for biosignal data transformation can include: determining a set of biosignal data, determining a brain state representation (e.g., an embedding) based on the biosignal data, and determining a biomarker value based on the brain state representation. The method can optionally include training a model (e.g., training a model used to determine the brain state representation), and/or any other suitable steps. A system for biosignal data transformation can include a biosignal device and a computing system.