Wearable EEG Bone Conduction Audio Device

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Solution Overview

Problem

Traditional EEG technologies are inaccessible to everyday individuals due to their cumbersome nature and require stringent physical conditions for accurate data collection, limiting their ability to monitor daily cognitive health, and newer portable models often compromise on accuracy and comprehensiveness.

Innovation Solution

Integration of EEG technology into bone conduction headphones with spring-loaded metal electrodes and a processor that analyzes EEG activity to provide real-time cognitive state feedback and dynamically adjust audio output, ensuring accurate data collection while maintaining user comfort and environmental awareness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional EEG technology is used, then measurement precision is improved, but device complexity and ease of operation deteriorate

Engineering Contradiction:

ImproveEEG data accuracyVSAvoidEEG equipment complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines EEG sensing functionality with bone conduction audio playback in a single wearable device. The EEG electrodes are integrated into the bone conduction headphone structure, allowing simultaneous audio delivery and brain activity monitoring without requiring separate traditional EEG equipment and headgear.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The device serves multiple functions: it acts as both an audio playback device through bone conduction and an EEG monitoring device. The same wearable apparatus collects cognitive state data, delivers audio feedback, and provides biometric information, eliminating the need for specialized EEG facilities and reducing overall system complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If traditional EEG protocol is followed, then measurement precision is improved, but ease of operation deteriorates

Engineering Contradiction:

ImproveEEG reading accuracyVSAvoidEEG test accessibility

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The wearable EEG device enables individuals to self-monitor their own brain activity continuously in daily life without requiring licensed technicians, controlled environments, or special physical conditions. Users can independently access their cognitive state data through the device, eliminating the need for professional EEG administration.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The device transitions from static, laboratory-based EEG testing to dynamic, continuous monitoring during natural daily activities. The wearable nature allows EEG data collection during various cognitive states and environments, making the measurement process adaptable to real-life conditions rather than requiring rigid protocol adherence.

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If portable EEG models are used, then ease of operation is improved, but measurement precision deteriorates

Engineering Contradiction:

ImproveEEG device portabilityVSAvoidEEG data accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent segments the EEG sensing function into discrete electrode contacts integrated within the bone conduction headphone structure. This modular approach allows precise localized sensing at critical brain regions while maintaining the portable wearable format, separating the sensing function from the audio function to optimize both precision and portability.

Inventive Principle:

Principle #1Segmentation

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

This solution increases accessibility to EEG data, providing individuals with insights into their brain health and cognitive states in real-time, enhancing biomedical, audio, fitness, and productivity applications while ensuring accurate and comprehensive monitoring.

Implementation Method 1

Bone-conduction headphones decode electrical input from the terminal and translate that into vibrations that stimulate the cochlea directly, with frequencies ranging from 0.25 and 8 kHz

Methodology Applied

Scientific EffectBone conduction: Vibration

Implementation Method 2

Multiple electrodes, including ground and conducting electrodes, will be integrated into the bone conduction transducer. These electrodes are spring-loaded to maintain contact with the user's skin and are coated with conductive material to ensure accurate data collection

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS20240342431A1Wearable dual-function EEG integrated bone conduction audio device

Publication Date: 2024.10.17 NIURA CORP

AI summary

The present invention relates to an auditory device that combines bone-conducting earbuds with integrated electroencephalography (EEG) sensors. The device utilizes bone conduction technology to transmit sound through the skull to the inner ear, allowing for clear audio perception without obstructing the ear canal. Incorporated EEG sensors are configured with spring-loaded contacts that maintain consistent skin contact to monitor brain wave activity effectively. This dual-functionality enables users to listen to audio and simultaneously track cognitive states, making the device particularly useful for applications in cognitive load monitoring and adaptive audio feedback based on the user's mental state. This innovation extends the functionality of conventional earbuds with bone-conduction mechanisms by integrating EEG technology to enhance biosensing, health monitoring, and tailored cognitive-processing feedback.