Voiceprint Score Threshold for Locked Device Unlocking
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Solution Overview
Problem
Current electronic devices require multiple operation steps to perform functions like mobile payments, leading to a cumbersome user experience, especially when the screen is locked.
Innovation Solution
An audio control method that uses voiceprint recognition to simplify operations by allowing users to control their devices with voice commands, reducing the need for manual unlocking and authentication through voice prompts and security measures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If voice control is implemented without score verification, then operation steps are reduced and user experience is improved, but security reliability deteriorates due to potential incorrect audio recognition
Solution Approach 1:
The patent introduces a score threshold parameter to differentiate between reliable and unreliable audio recognitions. When the score exceeds the threshold, the system executes commands directly; when it falls below, alternative authentication methods are triggered. This parameter-based decision mechanism resolves the contradiction by adapting the operation flow based on recognition confidence levels.
Solution Approach 2:
The patent introduces an intermediary verification mechanism (score threshold judgment) between audio recognition and command execution. This intermediary layer acts as a mediator that determines whether to proceed with voice control or switch to alternative authentication, thereby maintaining both ease of operation for valid commands and security for uncertain cases.
2Reliability
If strict voiceprint recognition threshold is applied, then security is improved, but operation efficiency deteriorates due to increased rejection of valid user requests
Solution Approach 1:
The patent applies partial action by using different threshold strictness levels for different scenarios. Instead of uniformly applying a strict threshold, the system adjusts the verification rigor based on the score, applying lenient handling for high-scoring valid requests and strict verification for borderline cases, thereby optimizing both security and efficiency.
Solution Approach 2:
The patent makes the authentication threshold dynamic rather than static. The system adjusts the effective threshold based on the recognition score, creating a flexible verification mechanism that adapts to the confidence level of each recognition event, thus balancing security requirements with operational efficiency.
3Reliability
If multiple authentication methods are required, then security is improved, but device complexity increases due to additional authentication modules
Solution Approach 1:
The patent implements multi-functionality by designing an authentication system that can handle multiple authentication types (voiceprint, password, pattern) within a unified framework. The same judgment module handles different authentication methods, reducing the need for separate complex modules for each method and thereby limiting the increase in device complexity.
Solution Approach 2:
The system provides self-service by automatically selecting the appropriate authentication method based on the voice recognition score. When the score is sufficient, the system self-determines to use voice control; when insufficient, it automatically triggers alternative authentication without requiring user intervention to choose the method, thereby simplifying the user-facing complexity.
Data Source
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AI summary
This application provides an audio control method and an electronic device, and relates to the field of terminal technologies. The method includes: when an electronic device is not unlocked, receiving a first audio signal, where the first audio signal includes a first voice signal of a user, and the first voice signal includes a keyword for requesting the electronic device to perform a first operation; performing, by the electronic device, voiceprint recognition on the first audio signal, to determine a score of the first audio signal; and when the score of the first audio signal is greater than or equal to a first threshold, unlocking the electronic device and performing the first operation; or when the score of the first audio signal is less than a first threshold and greater than a second threshold, prompting the user to perform security authentication in a manner other than a voice manner; and after the security authentication performed by the user succeeds, unlocking, by the electronic device, the electronic device, and performing the first operation. This technical solution helps reduce operation steps performed when the user uses the electronic device, and improve user experience to some extent.