Integrated Headgear for Simultaneous EEG and Eye Tracking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional biometric studies require multiple bulky devices to measure various physiological and psychological parameters, which can be discouraging for participants due to the need for multiple equipment setups, necessitating a compact and versatile solution for simultaneous measurement of multiple parameters.
Innovation Solution
A portable, adjustable headset with multiple electrodes and eye-tracking sensors integrated into a flexible frame that fits different head sizes and shapes, allowing for adjustable and removable components to accommodate various head geometries and provide freedom of movement, incorporating EEG electrodes and optical sensors for brain activity and eye movement tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate devices are used to measure different biometric parameters, then measurement comprehensiveness is improved, but device complexity and participant burden increase
Solution Approach 1:
The patent combines EEG electrodes, eye-tracking sensors, and other biometric sensors into a single integrated headset device. This merging of multiple separate measurement devices into one unified system allows simultaneous measurement of multiple biometric parameters (brain activity, eye movements, etc.) while reducing the overall complexity and number of equipment pieces that participants must wear and manage.
Solution Approach 2:
The headset is designed as a multi-functional device capable of performing various biometric measurements through different sensor types integrated into a single platform. The universal design allows the same headset to measure EEG signals, track eye movements, and potentially other physiological parameters, eliminating the need for multiple specialized devices for different measurement purposes.
2Ease of manufacture
If a fixed headset design is used, then manufacturing simplicity is improved, but adaptability to different head sizes and shapes deteriorates
Solution Approach 1:
The headset incorporates adjustable components including movable bridges that can pivot relative to the frame, expandable joints that allow sections to extend and retract, and removable/replaceable electrodes and sensors. These dynamic elements enable the headset to adapt to different head sizes and shapes while maintaining a relatively simple base design that can be manufactured efficiently.
Solution Approach 2:
The headset is divided into modular segments including a frame, multiple bridges, electrode housings, and sensors that can be independently adjusted or replaced. This segmentation allows each component to be optimized for manufacturing simplicity while the overall assembly adapts to different head geometries through the modular configuration of these segments.
3Measurement precision
If rigid sensor positioning is used, then measurement precision is improved, but freedom of movement and comfort deteriorate
Solution Approach 1:
The bridges are designed to pivot relative to the frame, allowing dynamic adjustment of sensor positions to maintain precise contact with the scalp despite head movements. This dynamic capability enables the system to preserve measurement precision while accommodating the participant's freedom of movement and improving comfort during extended wear.
Solution Approach 2:
The expandable joints allow the bridges to change their extension length, and the pivot joints allow change in angular orientation. These parameter changes enable the sensors to maintain optimal positioning for precise EEG measurements while adapting to different head positions and movements, thus preserving both measurement precision and user comfort.
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
Enables simultaneous and accurate measurement of multiple biometric parameters in a compact, user-friendly format, suitable for various settings, enhancing participant comfort and data collection efficiency.
Implementation Method 1
Each housing having an electrode for detecting the brain's electrical activity
Implementation Method 2
the tip of the forehead bridge further having one or more optical sensors for tracking the movement of the two eyes
Data Source
AI summary
Disclosed is a headgear for biometric research on human subjects. The headgear includes a frame that can be worn around the head. One or more of bridges extends from the frame over the scalp. Each bridge has one or more electrode housings coupled to the bridge. Each housing having an electrode for measuring the brain's electrical activity. Each bridge can pivotally couple to the frame for limited movement of the bridge relative to the frame. The headgear further comprises one or more forehead bridges that extends from the frame towards the middle of the eye. Tip of the forehead bridge having a sensor unit for tracking the movements of the eyes.