Mobile Terminal Fingerprint Authentication Feedback
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Solution Overview
Problem
Users face difficulties in recognizing whether their fingerprint is recognized by a mobile terminal and in recalling the correct finger for authentication, especially when multiple fingerprints are registered for different contents.
Innovation Solution
A mobile terminal equipped with a fingerprint sensing unit and a controller that provides feedback, such as haptic and visual cues, to indicate non-recognized parts of the fingerprint and allows access to content when a gesture input matches the registered gesture, ensuring accurate fingerprint authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If fingerprint authentication is implemented without feedback, then authentication speed is improved, but user awareness of authentication status deteriorates
Solution Approach 1:
The patent implements a feedback mechanism that provides visual information to the user during fingerprint authentication. The display unit shows whether the fingerprint is recognized or not recognized in real-time, allowing users to understand the authentication status without delaying the process. This resolves the contradiction by maintaining fast authentication while improving user awareness through information feedback.
2Adaptability or versatility
If multiple fingerprints are registered for different contents, then authentication versatility is improved, but user recall of registered finger deteriorates
Solution Approach 1:
The patent provides feedback information that displays which specific fingerprint is recognized during authentication. When a user presents a finger, the system not only determines whether authentication succeeds but also provides information about which fingerprint was detected. This helps users recall and remember which finger corresponds to which content, resolving the contradiction between versatility and user recall.
Solution Approach 2:
The patent utilizes visual display with different colors or visual indicators to represent different authentication states and fingerprint types. By providing distinct visual feedback for different fingerprints, the system helps users differentiate and remember which finger is associated with which content, thereby improving user recall while maintaining multiple fingerprint registration capability.
3Reliability
If fingerprint matching requires high precision, then authentication reliability is improved, but difficulty of detecting and measuring deteriorates
Solution Approach 1:
The patent implements a predetermined range for fingerprint matching rather than requiring exact precision. The controller determines whether the presented fingerprint matches the registered fingerprint within an acceptable range, which maintains authentication reliability while reducing the difficulty of detection and measurement. This approach allows for practical implementation without demanding perfect fingerprint matching.
Data Source
AI summary
A mobile terminal including a display unit; a fingerprint sensing unit; a memory configured to store fingerprint information; and a controller configured to receive a first fingerprint input via the fingerprint sensing unit for displaying content requiring user authentication, compare the first fingerprint input with the stored fingerprint information, output fingerprint authentication feedback indicating the first fingerprint input is insufficient for displaying the content requiring user authentication, in response to the first fingerprint input matching with the stored fingerprint information within a first predetermined range but less than a second predetermined range greater than the first predetermined range, receive a second fingerprint input via the fingerprint sensing unit, compare the second fingerprint input with the stored fingerprint information, and display the content requiring the user authentication in response to the second fingerprint input matching with the stored fingerprint information within the second predetermined range.