Fingerprint Button Module with Vibration Feedback for Real-Time Authentication
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Solution Overview
Problem
Conventional fingerprint sensor modules integrated into portable device buttons lack real-time feedback, causing users to wait unnecessarily to determine if authentication has been successful, leading to wasted time.
Innovation Solution
A button module with a fingerprint sensing unit and a vibration unit connected to a control unit, providing tactile feedback through vibrations when authentication is not passed, allowing users to immediately know the status of their fingerprint recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a conventional fingerprint sensor module is integrated into a button, then the device space is saved, but the user cannot obtain real-time feedback on authentication status
Solution Approach 1:
The patent introduces a vibration unit that provides tactile feedback to the user during fingerprint authentication. When the fingerprint sensor detects a finger, the control unit activates the vibration unit to generate vibrations that can be felt through the button. Different vibration patterns indicate different authentication states (e.g., continuous vibration for recognition, intermittent vibration for authentication in progress, no vibration for successful authentication). This feedback mechanism allows users to understand authentication status in real-time without needing to wait or check the display.
2Volume of moving object
If the fingerprint sensor module is integrated into the button, then the overall device volume is reduced, but the user experience is degraded due to lack of real-time status indication
Solution Approach 1:
The vibration unit provides tactile feedback that enhances user experience by enabling real-time awareness of authentication status. The control unit differentiates between various authentication states through distinct vibration patterns: continuous vibration indicates fingerprint recognition, intermittent vibration shows authentication is in progress, and cessation of vibration signals successful authentication. This allows users to understand the system state through touch, improving ease of operation without increasing device volume.
Solution Approach 2:
The patent utilizes mechanical vibration as a feedback mechanism. The vibration unit generates mechanical vibrations that are transmitted through the button structure to the user's finger. This physical vibration provides intuitive tactile cues about authentication status, making the interaction more natural and informative compared to visual-only feedback displays.
3Device complexity
If no vibration feedback is provided, then the device structure is simpler, but the user has to wait longer to know if authentication is passed
Solution Approach 1:
The vibration unit provides immediate tactile feedback about authentication status, eliminating the need for users to wait passively. By using different vibration patterns to indicate different authentication states, the system communicates status information in real-time through touch. This reduces user wait time and improves the perceived responsiveness of the system, while the added complexity remains relatively minimal (one additional component).
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
The vibration feedback mechanism reduces user wait time by providing real-time authentication status, enhancing the user experience and improving the efficiency of the fingerprint authentication process.
Implementation Method 1
a vibration unit electrically connecting to the control unit and disposed under the fingerprint sensing unit
Data Source
AI summary
A button module with vibration feedback and fingerprint sensing, a fingerprint sensing module for the same, and a control method for the same are provided. The fingerprint sensing module has a fingerprint sensing unit stacked on a vibration unit. When the fingerprint sensing module detects a fingerprint, the control unit or a host of an electronic device determines whether the fingerprint is authenticated. If it is not authenticated, the vibration unit is activated, so that the user realizes that the authentication is not passed in real time through the vibration. Then the user may quickly change another finger or move the finger's position to speed up the authentication process. This can prevent users from waiting to improve user experience.