Audio Device Voice Authentication Acoustic Signature Verification
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Solution Overview
Problem
The proliferation of passwords for managing accounts poses security and verification challenges, including difficulty in remembering multiple passwords and the need for frequent updates, leading to easily mimicked passwords that are insecure.
Innovation Solution
An audio-based user authentication method using audio devices, where users are prompted to speak a verification word or phrase, and the detected acoustic response is compared to a known acoustic signature, eliminating the need for traditional passwords and reducing visual interface interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional passwords are used for account management, then users can access multiple accounts, but security is compromised and users face difficulty remembering multiple passwords
Solution Approach 1:
The patent replaces the mechanical/password-based authentication system with an acoustic/voice-based authentication system. Instead of requiring users to input passwords through keyboards or other interfaces, the system captures and analyzes the user's voice characteristics through acoustic transducers, substituting the manual password entry mechanism with automated voice recognition.
Solution Approach 2:
The voice authentication system enables users to authenticate themselves automatically without requiring manual password input or management. The system captures the user's voice, compares it against stored acoustic signatures, and performs authentication autonomously, freeing users from the burden of remembering and managing multiple passwords.
2Ease of operation
If users choose simple passwords to avoid forgetting them, then ease of operation improves, but security deteriorates due to easily mimicked passwords
Solution Approach 1:
The patent fundamentally changes the authentication parameter from discrete password strings to continuous acoustic voice characteristics. Instead of relying on users to remember complex password sequences, the system captures the nuanced acoustic properties of the user's voice (frequency, timbre, pitch contours) and uses these biometric parameters for authentication, making the system both easier to use and more secure.
Solution Approach 2:
The system substitutes the password-based authentication mechanism with voice-based acoustic authentication. This replacement eliminates the security vulnerability of simple, easily mimicked passwords while maintaining ease of operation, as users naturally speak without needing to memorize complex credentials.
3Reliability
If audio-based voice authentication is implemented, then authentication security and user-friendliness improve, but device complexity increases
Solution Approach 1:
The patent leverages the existing multi-functionality of audio devices, which already contain acoustic transducers for playback and microphones for recording. By utilizing these existing components for voice authentication, the system avoids adding dedicated authentication hardware, thereby minimizing the increase in device complexity while still achieving secure authentication.
Solution Approach 2:
The authentication functionality is merged with the existing audio processing capabilities of the device. The same acoustic transducers used for media playback are used to capture authentication voice samples, and the same microphones used for voice commands are used for authentication, combining multiple functions into existing hardware components.
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
This approach enhances authentication security by leveraging a user-device relationship, reduces reliance on passwords, and provides a more user-friendly experience by allowing authentication through voice recognition without the need for visual interaction.
Implementation Method 1
an acoustic transducer having a sound-radiating surface for providing an audio output
Implementation Method 2
at least one microphone for detecting ambient acoustic signals
Data Source
AI summary
Various implementations include approaches for authenticating user identity with audio-based verification. Certain approaches include: receiving a request to authenticate a user of an audio device; prompting the user of the audio device to speak a verification word or phrase in response to receiving the request; detecting an acoustic response at the audio device or a connected smart device; comparing the detected acoustic response with an acoustic signature of a known user associated with the audio device and the verification word or phrase, wherein the audio device is registered as an authentication device prior to receiving the request to authenticate the user of the audio device; and sending a confirmation response indicating the user of the audio device is the known user in response to the acoustic response corresponding with the acoustic signature and the verification word or phrase.