Cross-Platform Biometric Token Sharing for Unified Authentication

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Solution Overview

Problem

Existing biometric authentication systems require separate registration procedures for different platforms and devices, consuming significant processing, memory, and network resources.

Innovation Solution

A system that shares a biometric token across platforms and devices by generating a biometric token during a registration procedure, storing it in a centralized database, and using it for unified authentication across multiple services without additional registrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate registration procedures are implemented for each platform and device, then authentication reliability is maintained, but processing resources, memory resources, and network resources are significantly consumed

Engineering Contradiction:

Improveauthentication reliabilityVSAvoidprocessing resources

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent merges multiple separate registration procedures into a single unified registration process. A single biometric template is extracted and stored centrally, enabling authentication across multiple platforms and devices without requiring separate registrations for each platform, thereby reducing processing resource consumption while maintaining authentication reliability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent implements a universal biometric template that serves multiple functions across different platforms and devices. The single biometric template stored in the centralized database can be used for authentication on any platform or device associated with the user account, eliminating the need for platform-specific biometric registrations

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If separate registration procedures are implemented for each platform and device, then platform-specific security is ensured, but memory resources and network resources are significantly consumed

Engineering Contradiction:

Improveplatform-specific securityVSAvoidmemory resources

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent consolidates multiple biometric template storages into a single centralized database. Instead of storing separate biometric templates for each platform and device, the system extracts and stores a single biometric template that is shared across all platforms and devices, significantly reducing memory resource consumption

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If separate registration procedures are implemented for each platform and device, then comprehensive authentication coverage is achieved, but network resources are significantly consumed

Engineering Contradiction:

Improveauthentication coverageVSAvoidnetwork resources

Core Design Contradiction:

Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The patent extracts the biometric template once during a single registration procedure and stores it in a centralized database. This extracted template is then reused for authentication across multiple platforms and devices, eliminating the need for repeated biometric data transmission and processing over the network, thereby reducing network resource consumption

Inventive Principle:

Principle #2Taking out (Extraction)

4Measurement precision

If multiple registration procedures are required for different platforms, then platform-specific authentication accuracy is maintained, but user time and system complexity increase

Engineering Contradiction:

Improveauthentication accuracyVSAvoiduser time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent performs the biometric template extraction and storage action in advance during a single registration procedure. This preliminary action enables subsequent authentication operations to be performed quickly across multiple platforms and devices without requiring users to repeat the registration process, thereby reducing user time expenditure

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12574372B2Sharing a biometric token across platforms and devices for authentication

Publication Date: 2026.03.10 CAPITAL ONE SERVICES LLC

AI summary

In some implementations, a device may obtain the biometric token associated with an account via a registration procedure associated with a first platform that is associated with a host. The server device may store an indication of the biometric token in a database. The server device may receive a login request associated with the account for a second platform that is associated with the host. The server device may identify that biometric authentication is enabled for the account based on the indication of the biometric token being stored in the database. The server device may provide an authentication challenge associated with the biometric token. The server device may receive a response to the authentication challenge indicating whether the authentication device has authenticated biometric information associated with a user based on the biometric token. The server device may authenticate the login request for the second platform based on the response.