Fingerprint Sensor Drag Input Recognition for Mobile Authentication
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Solution Overview
Problem
Current electronic devices lack an efficient method for fingerprint recognition using drag inputs on a display, which complicates user authentication and security enhancements.
Innovation Solution
An electronic device equipped with a display, a fingerprint sensor, and a processor that receives a drag input to obtain fingerprint information, matches it with reference data, and displays a second screen upon successful authentication, enhancing security and user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional fingerprint authentication methods are used, then security is provided, but user convenience and authentication speed are reduced
Solution Approach 1:
The system dynamically adapts the fingerprint recognition process to the user's drag motion. Instead of requiring static finger placement, the fingerprint sensor continuously captures images during the drag input, and the processor dynamically selects and combines effective fingerprint images from the sequence, making authentication more convenient while maintaining reliability
Solution Approach 2:
The system performs preliminary actions by continuously capturing fingerprint images during the drag input process. Multiple fingerprint images are acquired and stored in advance during the drag motion, allowing the system to select the most suitable images for authentication without requiring additional time or actions from the user
2Reliability
If multiple fingerprint images are captured during drag input, then authentication reliability is improved, but processing complexity increases
Solution Approach 1:
The system applies partial action by not processing all captured fingerprint images equally. Instead of exhaustive processing of every image, the processor selectively identifies and processes only the effective fingerprint images that meet quality criteria, reducing computational complexity while maintaining authentication reliability
Solution Approach 2:
The fingerprint recognition process is segmented into distinct stages: image capture during drag, quality assessment, selection of effective images, and authentication processing. This segmentation allows the system to handle multiple images systematically, reducing overall processing complexity by breaking down the complex task into manageable steps
3Adaptability or versatility
If drag input-based fingerprint recognition is implemented, then user experience is enhanced, but system complexity increases
Solution Approach 1:
The drag input mechanism serves multiple functions simultaneously: it acts as both the user interface input method and the trigger for fingerprint capture. The fingerprint sensor and processor work together to handle both the motion detection and biometric authentication, reducing the need for separate components and simplifying the overall system architecture
Solution Approach 2:
The system merges the touch input detection and fingerprint image capture processes. The drag input operation that users perform for navigation or selection is combined with the fingerprint authentication trigger, eliminating the need for separate authentication actions and reducing system complexity through process integration
Data Source
AI summary
An electronic device includes a display, a memory configured to store instructions, a fingerprint sensor configured to obtain first fingerprint information regarding a finger contacting the display, and a processor, and when executing the instructions, the processor is configured to while displaying a first screen on the display, receive a first drag input from a user's finger contacting the display; obtain the first fingerprint information regarding the finger by using the fingerprint sensor while the first drag input is maintained; and, based on it being identified that the fingerprint information matches first reference fingerprint information, display a second screen converted from the first screen at least partially on the display.