Voice Authentication Server Using Usage History for Shared Account Access

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Solution Overview

Problem

Existing speech recognition systems face challenges in user convenience and security when multiple users need to input account information for various services, leading to inefficiencies and potential security risks.

Innovation Solution

A server and system that utilize speech recognition technology to register and identify users based on voice, improving accuracy through user characteristics and usage history, enabling seamless account access and enhanced security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If users input account information manually for each service, then service access is achieved, but user convenience deteriorates due to repetitive input

Engineering Contradiction:

Improveuser convenienceVSAvoidtime for account input

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The system performs preliminary voice-based account verification before service access, storing the results in advance. This eliminates the need for repeated manual account input across multiple services, as the pre-verified account information is automatically retrieved and applied.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system enables automatic account identification and service access through voice recognition, allowing the account verification process to serve itself without requiring user intervention. The voice-based authentication automatically retrieves and applies account credentials across services.

Inventive Principle:

Principle #25Self-service

2Ease of operation

If users remain logged in to avoid repeated input, then convenience improves, but security deteriorates due to unauthorized access risks

Engineering Contradiction:

Improveuser convenienceVSAvoidaccount security

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system replaces traditional mechanical login methods (typing passwords, clicking buttons) with voice-based authentication. This substitution maintains security through biometric verification while improving convenience by eliminating repeated manual authentication actions.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system changes the authentication parameter from static credentials (passwords) to dynamic biometric data (voice characteristics). This allows for secure, temporary authentication states that can be verified repeatedly without maintaining continuous logged-in sessions, thus preserving both security and convenience.

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If multiple users share one device, then device utilization improves, but ease of operation deteriorates due to repeated login requirements

Engineering Contradiction:

Improvedevice sharing capabilityVSAvoidlogin process

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system provides universal voice-based authentication that works across multiple user accounts and services on a single device. Each user's voice profile is stored and recognized independently, allowing any user to quickly access their account without manual credential entry, thus maintaining ease of operation while supporting multi-user device sharing.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Adaptability or versatility

If speech recognition generates multiple candidate texts, then recognition flexibility improves, but processing accuracy deteriorates due to text selection difficulty

Engineering Contradiction:

Improverecognition flexibilityVSAvoidvoice processing accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The system uses feedback from usage history data to evaluate and rank multiple candidate texts generated by speech recognition. By analyzing which interpretations have been most successful in previous interactions, the system can select the most accurate text from candidates, thereby maintaining recognition flexibility while improving processing accuracy.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts text selection based on contextual factors including user characteristics, service type, and historical usage patterns. This dynamic approach allows the system to flexibly evaluate multiple candidate texts and select the most appropriate one for each specific situation, improving accuracy without sacrificing recognition flexibility.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20260031089A1Server and system including same

Publication Date: 2026.01.29 LG ELECTRONICS INC

AI summary

A server and a system including the same are disclosed. The server according to one embodiment of the present disclosure comprises a communication interface that communicates with an electronic device, a database that stores usage histories of text usage classified by characteristics, and a controller, wherein the controller generates a plurality of first texts corresponding to a voice signal received from the electronic device, generates first identification information corresponding to the voice signal, obtains one or more user characteristics corresponding to the voice signal based on the first identification information, determines a second text corresponding to the voice signal among the plurality of first texts based on a first text history describing how each of the plurality of first texts is used in association with the user characteristics among the usage histories of text classified by characteristics, and transmits a result of performing intent analysis for the second text to the electronic device.