Biometric Authentication Flow Using Environmental Reliability Checks

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Solution Overview

Problem

Existing personal authentication systems face reduced accuracy due to environmental factors affecting biometric information quality, leading to false authentication and decreased security.

Innovation Solution

An authentication device and method that assesses biometric information quality by integrating score calculation with environmental reliability, determining the need for additional biometric authentication based on the quality of initial biometric data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If biometric authentication is performed using a single authentication unit, then the authentication process is simple and fast, but the authentication accuracy decreases due to environmental factors affecting biometric information quality

Engineering Contradiction:

Improveauthentication accuracyVSAvoidauthentication process complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic authentication processing by determining whether to perform additional biometric authentication based on the reliability of the first biometric information. The processing unit dynamically adjusts the authentication flow - either stopping after the first authentication or proceeding to second authentication - based on reliability assessment, thereby optimizing both accuracy and efficiency

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of authentication reliability by assessing the quality of biometric information and using this assessment to control the authentication flow. By introducing reliability as a decision parameter, the system adapts the authentication process to the quality of input data, improving overall accuracy while avoiding unnecessary additional authentication steps

Inventive Principle:

Principle #35Parameter changes

2Productivity

If the authentication stops when the score is lower than a predetermined level, then the processing efficiency is improved, but the authentication accuracy decreases due to false authentication in inappropriate environments

Engineering Contradiction:

Improveprocessing efficiencyVSAvoidauthentication accuracy

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent performs preliminary assessment of biometric information reliability before making the final authentication decision. By evaluating the reliability of the first biometric information in advance, the system determines whether additional authentication is necessary, preventing false rejections due to environmental factors while maintaining efficient processing for high-quality inputs

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces feedback by assessing the reliability of biometric information and using this assessment to control the authentication flow. The reliability assessment provides feedback that determines whether to proceed to second authentication or stop processing, creating a closed-loop system that adapts to input quality and improves overall accuracy

Inventive Principle:

Principle #23Feedback

3Reliability

If additional biometric authentication is always performed, then the authentication accuracy is improved, but the processing time and complexity increase

Engineering Contradiction:

Improveauthentication accuracyVSAvoidauthentication processing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20260017354A1Authentication device and authentication method

Publication Date: 2026.01.15 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

AI summary

An authentication device includes: an acquisition unit configured to acquire at least first biometric information of a person to be authenticated used for first biometric authentication and first surrounding environment information at the time of acquiring the first biometric information; a score calculation unit configured to calculate a score of the first biometric authentication using the first biometric information; a reliability determination unit configured to determine reliability of the first biometric information from the first surrounding environment information; and a continued processing determination unit configured to determine whether to perform second biometric authentication using second biometric information different from the first biometric information based on the score of the first biometric authentication and the reliability of the first biometric information.