Voice Authentication System for Mobile Device Unlocking

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Solution Overview

Problem

Existing mobile device unlocking methods, such as local password schemes, are inconvenient and insecure, especially in one-handed use situations and can lead to security breaches when passwords are shared.

Innovation Solution

A network-based voice authentication system that receives and analyzes voice information to match it with predetermined profiles, sending an unlock signal to the mobile device if there is a match, allowing hands-free and secure access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a local password login scheme is used, then device security is provided, but ease of operation deteriorates due to manual typing requirements

Engineering Contradiction:
Improvedevice securityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the mechanical keyboard typing system with a voice recognition system. The voice interface module captures spoken passwords and converts them to text, eliminating the need for manual keyboard interaction while maintaining security through the same password authentication mechanism.

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

Solution Approach 2:

The patent introduces a voice interface module as an intermediary between the user and the password authentication system. This module captures voice input, processes it through speech-to-text conversion, and submits the resulting text to the existing authentication mechanism, thereby improving ease of operation without compromising security.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a password is shared between users, then adaptability improves, but reliability deteriorates due to security breaches

Engineering Contradiction:
Improveaccess sharingVSAvoidsecurity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments the authentication process by introducing device-specific voice pattern recognition. Each user's voice print is tied to a specific device, so even if a password is shared, the biometric voice authentication ensures that only the authorized user can access their own device, preventing security breaches from password sharing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the authentication parameter from solely knowledge-based (password) to a combination of knowledge-based (password) and biometric-based (voice print). This dual-factor approach allows password sharing for convenience while maintaining security through the unique, non-shareable voice characteristics of each user.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If biometric indicators are used for authentication, then ease of operation improves, but device complexity increases due to processing requirements

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent introduces a voice interface module as an intermediary that handles the complex voice processing tasks. This module captures voice input, performs speech-to-text conversion, and extracts voice print characteristics, thereby offloading the computational complexity from the core authentication system while maintaining ease of operation for the end user.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent performs preliminary voice print extraction and storage during the initial device setup or user registration phase. By pre-processing and storing voice characteristics beforehand, the system reduces the computational burden during actual authentication, improving ease of operation without requiring complex real-time processing during login.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9059991B2System and method for unlocking a device
Publication Date: 2015.06.16 BCE
  • US9059991B2 patent drawing
  • US9059991B2 patent drawing
  • US9059991B2 patent drawing

AI summary

A system for unlocking a mobile device including: an input module configured to receive voice information; an output module configured to output an unlock signal; a processor connected to the input module and output module and configured to: receive the voice information from the input module; analyze the voice information; determine if the analyzed voice information matches with a predetermined voice profile; and if there is a match, send an unlock signal to the mobile device via an output module. A method for unlocking a mobile device including: receiving voice information from the mobile device; analyzing the voice information; determining if the analyzed voice information matches with a predetermined voice profile; and if there is a match, sending an unlock signal to the mobile device.