Dynamic Fingerprint Recognition Mode Switching for Touchscreens
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Solution Overview
Problem
Fingerprint recognition technologies struggle to capture fingerprints successfully when certain user interfaces (UIs) are displayed on touchscreen devices, particularly those that require slide operations, as press-mode fingerprint sensors are ineffective for these interactions.
Innovation Solution
An electronic device with a fingerprint recognition sensor that can operate in both swipe and press modes, dynamically determining the recognition mode based on the UI type and user input, enabling the fingerprint recognition function only in the relevant display area to enhance capture success and conserve power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If press-mode fingerprint recognition is used, then fingerprint capture is reliable for press-mode UIs, but fingerprint capture fails for swipe-mode UIs
Solution Approach 1:
The patent applies dynamics by making the fingerprint recognition mode changeable based on UI type. The system dynamically switches between press-mode and swipe-mode fingerprint recognition according to whether the current UI widget is press-mode or swipe-mode, allowing the recognition mechanism to adapt its behavior to match the interaction pattern of the displayed UI.
Solution Approach 2:
The patent changes the operational parameters of the fingerprint recognition sensor based on UI type. When a swipe-mode UI widget is detected, the system switches the fingerprint sensor to swipe-mode operation; when a press-mode UI widget is detected, it uses press-mode operation. This parameter change enables compatibility across different UI interaction modes.
2Adaptability or versatility
If fingerprint recognition function is enabled in all display areas, then fingerprint capture coverage is maximized, but power consumption increases
Solution Approach 1:
The patent applies local quality by enabling the fingerprint recognition function only in specific display areas where UI widgets are located, rather than across the entire display. The system identifies the coordinates of UI widgets and restricts fingerprint recognition to those specific regions, reducing unnecessary power consumption in areas where fingerprint recognition is not needed.
Solution Approach 2:
The patent segments the display area into multiple coordinate regions and enables fingerprint recognition only in segments where UI widgets are present. By dividing the display into discrete areas and selectively activating fingerprint recognition in relevant segments, the system achieves both coverage where needed and power savings where not needed.
Data Source
AI summary
An electronic device and a fingerprint recognition method are provided. The electronic device includes: a fingerprint recognition sensor configured to capture, according to a swipe mode or a press mode, a user fingerprint in an area displayed on a touchscreen; at least one memory configured to store a fingerprint template; at least one processor configured to determine and set a fingerprint recognition mode in a first display area; and the touchscreen configured to detect a first input in the first display area; where the processor is further configured to instruct the fingerprint recognition sensor to capture a user fingerprint according to the set mode and match the fingerprint captured by the fingerprint recognition sensor with the fingerprint template.