Fingerprint Multiplexing Button for Mobile Terminal Security
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Solution Overview
Problem
Current mobile terminal security methods are inadequate, as they do not provide sufficient protection against unauthorized access when the device is left unattended or unlocked, leading to potential information safety risks.
Innovation Solution
A processing method that multiplexes a fingerprint identification area with a button area on a mobile terminal, forming a fingerprint multiplexing button, which acquires and compares fingerprint information to ensure matching credentials for unlocking and re-locking the device, thereby enhancing security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fingerprint identification area is multiplexed with a button area to form a fingerprint multiplexing button, then the device complexity is reduced and ease of operation is improved, but the reliability of security protection may be worsened due to potential fingerprint piece inconsistency
Solution Approach 1:
The fingerprint is segmented into multiple fingerprint pieces that are collected separately during different button operations. Each fingerprint piece is stored and later assembled into a complete fingerprint for verification, allowing the system to maintain security while using a multiplexed button design.
Solution Approach 2:
The system performs preliminary actions by collecting and storing multiple fingerprint pieces during normal button operations before a security verification is needed. When security verification is required, the pre-collected fingerprint pieces are assembled and compared against stored fingerprint data, enabling faster and more reliable verification.
2Reliability
If fingerprint information is compared and the device is locked when inconsistency is detected, then security protection is improved, but the ease of operation is worsened due to additional locking actions
Solution Approach 1:
The system implements feedback by continuously monitoring fingerprint information during button operations and comparing it with stored fingerprint data. When inconsistency is detected, the system provides feedback by locking the device and prompting the user to re-input fingerprint information, creating a closed-loop security verification process.
Solution Approach 2:
The multiplexed button serves dual purposes: it performs normal button functions and simultaneously collects fingerprint information for security verification. This self-service approach allows the button to contribute to both operation and security without requiring separate components.
3Measurement precision
If multiple fingerprint pieces are collected and assembled to form complete fingerprint information, then measurement precision of fingerprint verification is improved, but the loss of time increases due to multiple acquisition steps
Solution Approach 1:
The system performs preliminary actions by collecting and storing multiple fingerprint pieces during normal button operations before security verification is needed. This advance preparation reduces the time required during actual verification, as the fingerprint pieces are already available for assembly and comparison.
Solution Approach 2:
The fingerprint verification process is segmented into multiple steps where different fingerprint pieces are collected during different button operations. Each piece contributes to the overall verification accuracy, and the segmented approach allows the system to maintain high precision while distributing the time cost across multiple interactions.
Data Source
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AI summary
A processing method for piecing together a fingerprint based on a mobile terminal and a mobile terminal are disclosed. The method includes: acquiring fingerprint information of a user via a fingerprint multiplexing button; comparing the fingerprint information of the user with fingerprint information which is stored in advance; unlocking the mobile terminal if the fingerprint information of the user matches the fingerprint information which is stored in advance; and locking the mobile terminal and prompting the current operating user to re-input fingerprint information to unlock the mobile terminal if the fingerprint information of the current operating user is inconsistent with the fingerprint information which is stored in advance. When the user utilizes the mobile terminal, a fingerprint match is performed. If different, the mobile terminal is locked for increasing the safety of the information.