Handheld Biosensor Electrodermal Signal Detection
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Solution Overview
Problem
Traditional biofeedback systems are cumbersome, non-portable, and difficult to use, failing to provide accurate and appealing stress management solutions due to their large size and variability in human physiology, which limits their effectiveness for individualized stress monitoring and management.
Innovation Solution
A portable, ergonomic, and aesthetically designed biosensor that fits between the thumb and forefinger, using wireless technology to detect electrodermal signals and adaptively filter them for accurate stress level measurement, integrating with games and entertainment systems for engaging user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional biofeedback systems are used, then biofeedback measurement function is provided, but device size and weight increase making them non-portable
Solution Approach 1:
The patent combines the electrode assembly, signal processing circuitry, wireless transmitter, and battery all into a single integrated housing that fits between the thumb and forefinger. This merging of previously separate components into one compact unit eliminates the need for external equipment while maintaining measurement accuracy.
Solution Approach 2:
The patent places the electronic components, processing elements, and transmitter inside the housing structure, nesting everything within the compact form factor. The electrodes are integrated into the housing surfaces, creating a nested arrangement that maximizes functionality within minimal space.
2Reliability
If traditional wired biofeedback arrangements are used, then measurement function is provided, but ease of use and portability deteriorate
Solution Approach 1:
The patent extracts the signal processing and transmission functions from external equipment and integrates them directly into the handheld device. The wireless transmitter eliminates the need for physical connections to external devices, freeing the user from wired constraints while maintaining signal processing accuracy.
Solution Approach 2:
The device is designed to be self-contained with onboard processing elements that perform signal filtering and analysis locally. The wireless transmitter handles communication independently, making the device self-sufficient without requiring external equipment for operation.
3Reliability
If fixed biofeedback devices are used, then measurement function is provided, but adaptability to individual users deteriorates
Solution Approach 1:
The patent employs adaptive filtering algorithms that dynamically adjust to each user's physiological characteristics. The processing elements continuously monitor and adapt to individual variations in skin conductivity, baseline levels, and signal patterns, enabling personalized stress monitoring for each user.
Solution Approach 2:
The device changes its operational parameters adaptively based on individual user characteristics. The filtering characteristics, sampling rates, and analysis algorithms are adjusted according to each user's physiological baseline, allowing the same hardware to accurately measure different individuals without manual recalibration.
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
The solution provides a user-friendly, accurate, and engaging method for stress management by continuously monitoring and adapting to individual stress levels, offering effective biofeedback through a compact and comfortable device that can be used in various settings.
Implementation Method 1
a housing with first and second surfaces, the surfaces being electrodes suitable for detecting biometric signals
Data Source
AI summary
In part, one aspect of the invention relates to a portable, handheld biosensor device that is held between two fingers of the same hand or otherwise contacts two points on a user's skin. The sensor device includes a pair of conductive or semi-conductive electrodes and associated circuitry designed to sense, amplify and digitize the electrical conductance of the skin between the electrodes. The device can additionally be configured to sense additional biometrics from the fingers, including blood oxygenation and skin temperature. Digitized biometric values are transmitted wirelessly (or via direct wire connection, such as a USB cable) to a computing device where the data is utilized to generate a control parameter in a software application whose purpose is to provide anxiety biofeedback or entertainment.