Fingerprint Key Power Control via Touch Duration
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Solution Overview
Problem
Current laptop computers with separate power keys and fingerprint recognition keys result in resource waste, high costs, and complex user operations due to the duplication of physical components and functions.
Innovation Solution
A terminal control method and device that utilizes a fingerprint recognition key to replace the power key, allowing users to control the terminal's states (turned-on, turned-off, sleep, awake, locked) through touch operations, simplifying user interactions and reducing physical components by integrating power control functions into the fingerprint recognition key.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate power key and fingerprint recognition key are arranged on the terminal, then the terminal can perform power control and fingerprint authentication functions, but the quantity of physical components increases and the cost increases
Solution Approach 1:
The patent combines the power key and fingerprint recognition key into a single integrated key. The fingerprint recognition key can perform both fingerprint authentication and power control functions (wake-up, sleep, shutdown) by detecting different touch durations, thereby reducing the quantity of physical components while maintaining all necessary functionalities
Solution Approach 2:
The fingerprint recognition key is designed to perform multiple functions: fingerprint authentication, wake-up from sleep state, and system shutdown. By making the key universal, the patent reduces the total number of keys needed on the terminal while ensuring all power control and authentication functions are available
2Reliability
If a separate power key and fingerprint recognition key are arranged on the terminal, then the terminal can perform power control and fingerprint authentication functions, but the user operation becomes complex
Solution Approach 1:
By merging power control and fingerprint authentication into a single key, the patent simplifies user operations. Users no longer need to press separate keys for different functions; instead, they can use the same fingerprint recognition key for all operations, reducing the complexity of user interactions
3Quantity of substance
If the fingerprint recognition key is used to control terminal running states, then the physical components are reduced and cost is reduced, but the touch parameter detection precision must be high
Solution Approach 1:
The patent uses different touch duration parameters to differentiate between various operations: short touch duration for wake-up, medium duration for sleep, and long duration for shutdown. By establishing clear parameter thresholds and ranges, the system achieves accurate function differentiation without requiring excessively high measurement precision, making the solution practical and implementable
Data Source
AI summary
A terminal control method based on a fingerprint recognition key, a terminal control device based on a fingerprint recognition key, and a terminal are provided. The method includes: detecting a touch operation on the fingerprint recognition key, acquiring a touch parameter of the touch operation; and controlling a running state of a terminal, in a case where the touch parameter meets a preset condition. With the method, the terminal is controlled by the fingerprint recognition key to switch its running state, such as a turned-on state, a turned-off state, a sleep state, an awake state, a locked state, thereby simplify an operation and improving a user experience. In this case, the power key is cancelled since the function of the power key is implemented by the fingerprint recognition key, thereby reducing the physical components and thus the fabrication cost of the terminal.