Smartphone EEG Interface for Cable-Free BCI Control

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Solution Overview

Problem

Current brain-computer interface (BCI) systems are limited by their need for fixed computing devices and multiple physically connected peripherals, which restrict mobility and ease of use, particularly for individuals with physical challenges.

Innovation Solution

A mobile computing device, such as a smartphone, equipped with a purpose-written app that receives and processes EEG data streams wirelessly from a headset, generates actionable commands, and controls peripheral devices wirelessly, enabling a fully mobile BCI system for daily functions, healthcare, entertainment, gaming, and virtual/augmented reality applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fixed computing devices and multiple physically connected peripherals are used, then system reliability is improved, but mobility and ease of operation deteriorate

Engineering Contradiction:
Improvesystem reliabilityVSAvoidmobility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The mobile computing device serves multiple functions: it acts as the computing device, wireless communication hub, and control interface simultaneously. The system uses a universal wireless communication protocol that allows different peripheral devices to connect without physical cables, making the system both reliable and mobile.

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

Solution Approach 2:

The patent replaces the mechanical connection system (physical cables and ports) with a wireless communication system. The mobile computing device communicates with peripheral devices through wireless protocols, eliminating the need for physical connections while maintaining system reliability through software-based communication protocols and error correction mechanisms.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Stability of the object's composition

If fixed computing devices and physically connected peripherals are used, then system stability is improved, but adaptability and versatility deteriorate

Engineering Contradiction:
Improvesystem stabilityVSAvoidsystem adaptability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The system transitions from a static, fixed configuration to a dynamic, adaptable configuration. The mobile computing device can dynamically connect and disconnect from various peripheral devices wirelessly, allowing the system composition to change based on user needs while maintaining stability through consistent communication protocols.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system employs universal wireless communication standards that enable the mobile computing device to work with multiple types of peripheral devices (audio devices, display devices, input devices) without requiring device-specific connections, thereby enhancing adaptability while maintaining system stability through standardized interfaces.

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

3Adaptability or versatility

If multiple physically connected peripherals are used, then functional capability is improved, but device complexity deteriorates

Engineering Contradiction:
Improvefunctional capabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the functions of multiple separate components into a single mobile computing device. The device integrates the computing processor, wireless communication transceiver, user interface, and control software into one portable unit, reducing the number of separate physical components needed while maintaining full functional capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The mobile computing device acts as an intermediary between the user and multiple peripheral devices. It provides a unified interface for controlling various peripherals through wireless communication, simplifying the user experience by hiding the complexity of multiple device connections behind a single user-friendly interface.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11720081B2Mobile brain computer interface
Publication Date: 2023.08.08 DUKE UNIV
  • US11720081B2 patent drawing
  • US11720081B2 patent drawing
  • US11720081B2 patent drawing

AI summary

A method includes receiving, by a mobile computing device from an electroencephalogram (EEG) monitoring headset, an incoming wireless communication signal including an EEG data stream. The method may further include processing, by an application running on the mobile computing device, the received EEG data stream to determine at least one actionable command for at least one peripheral device. The method may also include transmitting, by the mobile computing device to the at least one peripheral device, at least one outgoing wireless communication signal including the at least one determined actionable command.