Fingerprint Verification Rule Segmentation for Precision

The patent divides the fingerprint recognition process into two independent stages: first, the physical button is pressed to trigger a preliminary fingerprint collection; second, the fingerprint is verified using the collected data. This segmentation allows the physical button to be pressed firmly for unlocking while the fingerprint sensor remains stationary for clear fingerprint capture, resolving the contradiction between easy operation and measurement precision.

The patent implements preliminary action by first pressing the physical button to trigger the fingerprint recognition sensor to collect the fingerprint before performing the actual verification. This preliminary collection phase ensures the fingerprint is captured clearly when the sensor is stationary, while the subsequent verification phase uses this pre-collected data, allowing firm pressing for unlocking without compromising fingerprint quality.

The patent segments the operation into two distinct phases: a preliminary phase where the physical button is pressed firmly to trigger fingerprint collection, and a verification phase where the collected fingerprint is processed. This allows the user to press firmly for unlocking while the sensor remains stationary for high-quality fingerprint capture, eliminating the need to choose between pressing force and recording quality.

The patent uses preliminary action by first triggering the fingerprint collection through physical button pressing before performing verification. This ensures the fingerprint is captured with sufficient pressure and clarity, while the verification process uses this pre-collected data, allowing firm pressing without sacrificing fingerprint quality.

The patent segments the verification rules into multiple levels (e.g., first verification rule and second verification rule) corresponding to different security requirements. This allows the system to apply different verification thresholds and methods for different scenarios (such as unlocking vs. payment), optimizing precision for each specific use case while maintaining manageable system complexity through structured rule organization.

The patent implements dynamic verification by selecting different verification rules based on the security level required for each operation. The system can dynamically switch between different verification thresholds and methods depending on the scenario (e.g., lower threshold for unlocking, higher threshold for payment), optimizing precision for each specific operation while maintaining overall system simplicity through automated rule selection.