Voiceprint Access Control Without Card Swipes or Taps
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Solution Overview
Problem
Current access control systems require active physical interaction, such as swiping or tapping a credential, which can be inconvenient and may not suit all user scenarios.
Innovation Solution
An audio-based access control system that uses voice recognition to authenticate users, allowing access through voice commands without the need for physical interaction with a credential reader.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical credential interaction (swiping/tapping) is required for access control, then security verification is ensured, but user convenience and operational ease deteriorate
Solution Approach 1:
The patent replaces the mechanical credential interaction system (swiping/tapping physical cards or tokens) with an acoustic field-based authentication system. The access control device captures voice signals through a microphone, processes them to extract voiceprint features, and performs authentication without requiring physical contact between the user and the device, thereby eliminating the need for mechanical credential presentation while maintaining security verification
Solution Approach 2:
The patent introduces voiceprint recognition as an intermediary between the user and the access control decision. Instead of directly presenting a physical credential, the user's voice serves as the intermediary carrier of authentication information. The system extracts voiceprint features from the voice signal and uses these features for authentication, creating an indirect but more convenient authentication path that improves ease of operation while maintaining reliability
2Adaptability or versatility
If physical credentials are used for access control, then authentication capability is provided, but system complexity and device requirements increase
Solution Approach 1:
The patent extracts the essential authentication capability from the physical credential and its associated reader system. By focusing solely on capturing and processing voice signals, the system eliminates the need for complex credential storage, magnetic stripe reading mechanisms, RFID antennas, and token validation systems. The authentication capability is retained through voiceprint feature extraction and comparison, significantly reducing device complexity while maintaining versatility
Solution Approach 2:
The patent creates a digital copy of the user's voice characteristics in the form of voiceprint features. Instead of requiring physical credentials that must be read and validated, the system captures acoustic information and converts it into a digital representation (voiceprint feature vector) that can be stored and compared. This copying approach simplifies the authentication process by replacing complex physical credential verification with straightforward digital feature matching
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
Enables convenient and hands-free access control by leveraging voice authentication, enhancing user experience and flexibility in access management.
Implementation Method 1
processing an audio signal associated with the audio input to identify and authenticate a user
Data Source
AI summary
A method according to one embodiment includes receiving audio input by a microphone of an access control device that controls access through a passageway, processing an audio signal associated with the audio input to identify and authenticate a user, determining a command corresponding with the audio signal in response to identification and authentication of the user, and performing at least one action that corresponds with the command.