Wearable Thought Password Brain-Computer Interface Authentication

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Solution Overview

Problem

Existing authentication and password security techniques, such as biometric signatures, are vulnerable to exploitation and hacking, necessitating improved methods for secure user identification.

Innovation Solution

A brain-computer interface system that captures involuntary and voluntary brain signals in response to stimuli, using a wearable device with sensors to authenticate users based on unique brain signal patterns, analyzed by a machine learning model.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional biometric authentication methods (fingerprints, facial recognition) are used, then user identification can be performed, but the security is vulnerable to exploitation and hacking

Engineering Contradiction:
Improveauthentication securityVSAvoidvulnerability to hacking
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces traditional biometric authentication systems (mechanical/optical sensors for fingerprints and facial recognition) with a brain-computer interface system that measures electrical brain signals. This substitution moves from external physical biometrics that can be copied or hacked to internal neural signals that are fundamentally more secure and difficult to replicate.

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

Solution Approach 2:

The system changes the fundamental parameter being measured for authentication from external physical characteristics (fingerprints, facial features) to internal electrical neural activity patterns. By measuring brain signal characteristics such as frequency, amplitude, and temporal patterns during cognitive tasks, the system achieves higher security because these electrical signals are inherently more complex and harder to replicate than traditional biometric data.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If complex passwords are used to improve security, then authentication becomes more secure, but the system becomes more complicated and harder to operate

Engineering Contradiction:
Improvepassword securityVSAvoiduser convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The brain-computer interface system performs authentication automatically by measuring brain signals without requiring users to manually enter passwords or perform complex authentication sequences. The system self-activates when the user engages with the device, automatically captures brain signal data, processes the signals through machine learning models, and completes authentication - making the secure process as convenient as simply using the device.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If traditional sensors are used for biometric authentication, then the device structure is simple, but the measurement precision and uniqueness of user identification is insufficient

Engineering Contradiction:
Improvebrain signal uniquenessVSAvoidsensor system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent divides the authentication process into distinct functional segments: (1) brain signal acquisition through EEG sensors, (2) signal preprocessing and filtering, (3) feature extraction from raw signals, (4) machine learning model processing, and (5) authentication decision. This segmentation allows the system to manage complexity systematically while achieving high measurement precision through specialized processing at each stage.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system introduces machine learning models as intermediary components between the raw brain signal sensors and the authentication decision. These intermediary algorithms process, analyze, and interpret the complex electrical signals, extracting unique user characteristics and transforming raw neural data into reliable authentication credentials, thereby bridging the gap between simple sensor input and secure authentication output.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Provides secure and unique user authentication by leveraging the uniqueness of brain signals, eliminating the need for complex passwords and making them nearly impossible to replicate or misappropriate.

Implementation Method 1

The system may capture involuntary and voluntary brain signals of the user in response to the stimulus and measure the characteristics of those signals. The signals may be captured and analyzed using a wearable device comprising a plurality of sensors.

Methodology Applied
Scientific EffectElectroencephalography (EEG):

Data Source

PatentUS12366919B2Method and apparatus for thought password brain computer interface
Publication Date: 2025.07.22 COMCAST CABLE COMM LLC
  • US12366919B2 patent drawing
  • US12366919B2 patent drawing
  • US12366919B2 patent drawing

AI summary

Systems and methods are described herein for authentication and password security. The system may detect involuntary and voluntary brain signals of a user and measure the characteristics of those signals. The signals may be detected and analyzed using a wearable device comprising a plurality of sensors. The system may authenticate the identity of the user by triggering the user to imagine content or react to presented content. The content may comprise an image or movement, and brain signals of the user may indicate signals that are consistent for the user. The system may authenticate the user based on the brain signals based on data stored for the user or profile for the user. This determination may be performed by a machine learning model trained to classify users based on the brain signal data.