Audio Reflection Authentication for Seamless Electronic Device Access
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Solution Overview
Problem
Existing electronic devices require separate user authentication operations, such as fingerprint or password inputs, making it difficult to seamlessly use the device and its functions, and limiting intuitive and fast service provision.
Innovation Solution
An electronic device that uses an audio output device connected via an interface to perform user authentication by transmitting a test signal and receiving a feedback signal, unlocking the device when the user wearing the audio output device is authenticated based on stored user authentication information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate authentication operations (fingerprint, password, utterance) are required for user authentication, then security is improved, but ease of operation deteriorates and time consumption increases
Solution Approach 1:
The system performs authentication automatically without requiring user actions. The audio output device plays a test signal that is reflected by the user's ear, and the processor automatically analyzes the reflected signal to determine authentication result, making the system serve itself for authentication purposes
Solution Approach 2:
The patent replaces mechanical interaction systems (fingerprint sensors, password keyboards, voice utterance microphones) with an acoustic reflection-based authentication system using audio signal processing to achieve automated authentication
2Reliability
If multiple authentication procedures are required for device access and function execution, then security is improved, but productivity deteriorates
Solution Approach 1:
The system performs authentication in advance automatically when the audio output device is connected, so that when the user wants to use functions, authentication has already been completed, enabling immediate access without waiting for additional authentication steps
Solution Approach 2:
The patent combines device authentication and function authentication into a single automated process. The same audio-based authentication mechanism is used for both device access and subsequent function execution, merging multiple authentication procedures into one
3Reliability
If separate authentication operations are required for each function, then security is improved, but time consumption increases
Solution Approach 1:
The authentication state is maintained continuously once established. After the initial automated authentication, the system remains in an authenticated state allowing continuous access to functions without requiring repeated authentication actions, eliminating time loss from repeated authentication
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
User authentication and de-authentication are performed seamlessly without additional user actions, enabling seamless access to services and functions, even when authentication is required.
Implementation Method 1
obtain an audio signal reflected on a part of the user of the outputted audio signal
Data Source
Figure 1a~1b
Figure 1c
Figure 1d
AI summary
Disclosed is an electronic device. The electronic device includes an interface, and a processor, wherein the processor may receive an input of a user, output an audio signal by using a first external device connected to the electronic device through the interface, in response to the input of the user, obtain an audio signal reflected on a part of the user of the outputted audio signal, by using the first external device, authenticate the user by using the reflected audio signal and execute a specified function in a unlocked state of the electronic device when the user is a user authenticated for the electronic device.