Screen Fingerprint Authentication Whitelist Control
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Solution Overview
Problem
Current fingerprint recognition technologies on intelligent terminals are limited in implementing fingerprint recognition on the screen, which can increase power consumption and do not provide an efficient user experience, especially when the touch object does not support fingerprint authentication.
Innovation Solution
A fingerprint recognition method and terminal device that utilize a touchscreen with a fingerprint recognition function, where the device detects touch operations, determines if the touch object is on a whitelist, and only collects and authenticates fingerprint information when the object supports fingerprint authentication, reducing power consumption and improving user experience by providing prompt information when authentication is not supported.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fingerprint recognition is performed on the touchscreen screen, then user experience is improved and authentication is more convenient, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the fingerprint recognition function conditional and adaptive rather than static. The system dynamically activates fingerprint recognition only when specific conditions are met (touch object is in whitelist, touch gesture matches authentication gesture), and deactivates it otherwise. This dynamic control resolves the contradiction by enabling convenient screen-based authentication when needed while conserving power when not needed.
Solution Approach 2:
The patent changes the operational parameters of the fingerprint recognition system based on contextual conditions. It monitors touch object parameters (whether in whitelist), touch gesture parameters (whether matching authentication gesture), and activates fingerprint recognition only when parameters meet predefined thresholds. This parameter-based control allows the system to provide excellent user experience when conditions permit while minimizing power consumption when they don't.
2Ease of operation
If fingerprint recognition is always activated on the screen, then authentication convenience is maximized, but system resource waste increases
Solution Approach 1:
The patent implements partial action by activating fingerprint recognition only partially - specifically when the touch object is in the whitelist and the touch gesture matches the authentication gesture. Instead of always being active (excessive action), the system provides just enough authentication convenience in the specific scenarios where it is needed and useful, avoiding resource waste in other scenarios.
Solution Approach 2:
The system performs self-service by automatically monitoring touch operations, determining whether they warrant fingerprint recognition activation, and controlling the authentication process without user intervention. The system serves itself by managing its own power consumption and authentication operations based on real-time conditions, resolving the contradiction between convenience and resource efficiency.
3Speed
If the terminal device always monitors touch operations for fingerprint authentication, then authentication responsiveness is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic action by having the terminal device monitor touch operations at specific intervals and under specific conditions rather than continuously. The system periodically checks whether a touch object is in the whitelist and whether the touch gesture matches authentication gestures, activating fingerprint recognition only during these periodic checks when conditions are met. This provides responsive authentication when needed while avoiding continuous monitoring power consumption.
Data Source
AI summary
When detecting a first touch operation performed by a user on a touchscreen of the terminal device, the terminal device determines an object in an area corresponding to the first touch operation as a touch object, and the touchscreen has a fingerprint recognition function. The terminal device determines whether the touch object is included in a preset whitelist, and the whitelist includes at least one touch object that supports fingerprint authentication. If the touch object is included in the whitelist, the terminal device collects fingerprint information of the user by using the touchscreen. The terminal device performs fingerprint authentication by using the collected fingerprint information.