Mobile Terminal Fingerprint Unlocking via Processor Frequency Control
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Solution Overview
Problem
Current fingerprint recognition technologies in mobile terminals face challenges in achieving fast unlocking speeds, which affects user efficiency and is a competitive factor among manufacturers.
Innovation Solution
Increasing the dominant frequency of the processor configured for fingerprint matching in mobile terminals to accelerate data matching processes, thereby reducing unlocking time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional fingerprint matching process is used, then system stability is maintained, but unlocking speed is slow
Solution Approach 1:
The patent changes the operating frequency parameter of the processor from a standard state to a high-frequency state specifically during fingerprint matching operations. This parameter change enables the processor to complete data matching tasks faster, directly improving unlocking speed while maintaining system stability through dynamic frequency adjustment rather than permanent hardware modification.
Solution Approach 2:
The patent implements dynamic frequency adjustment where the processor operates at different frequencies based on the operational state. During fingerprint matching, the frequency is dynamically increased to accelerate processing, while during normal operations, it returns to standard frequency. This dynamic approach resolves the contradiction by adapting system performance to real-time needs.
2Productivity
If processor frequency is increased to accelerate matching, then unlocking speed improves, but energy consumption increases
Solution Approach 1:
The patent employs periodic high-frequency operation only when fingerprint matching is detected, rather than maintaining high frequency continuously. The processor alternates between standard and high-frequency states based on operational requirements, achieving high productivity during matching tasks while minimizing overall energy consumption through this periodic, on-demand approach.
Solution Approach 2:
The system detects the fingerprint matching operation in advance and proactively switches to high-frequency mode before the actual matching begins. This preliminary action ensures that the processor is already at optimal speed when matching starts, maximizing efficiency without unnecessarily extending the high-frequency state and wasting energy.
Data Source
AI summary
A method for controlling unlocking includes: fingerprint data is received; a dominant frequency of a processor is increased; matching is conducted on the received fingerprint data based on the increased dominant frequency; the mobile terminal is unlocked when the received fingerprint data is matched.