Pressure-Sensing Physical Key for False Touch Discrimination
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Solution Overview
Problem
Current mobile terminals face challenges in accurately distinguishing between intended and false touch operations on physical keys, leading to suboptimal user experiences and potential errors.
Innovation Solution
A physical key component comprising a capacitive touch key layer, pressure sensing layer, fingerprint identification layer, and vibration layer, which generates response instructions based on touch pressure thresholds to differentiate between intended and false touch operations, providing tactile feedback and improving user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fingerprint identification layer is continuously energized to enable fingerprint recognition, then fingerprint identification functionality is improved, but power consumption increases
Solution Approach 1:
The fingerprint identification layer is energized periodically rather than continuously. The controller activates the fingerprint identification layer only when a touch operation is detected on the physical key, and deactivates it when no touch is detected. This periodic energization maintains fingerprint recognition capability while significantly reducing overall power consumption compared to continuous operation.
Solution Approach 2:
The system uses the touch detection capability of the physical key itself to trigger the fingerprint identification layer's energization. The physical key's touch detection function serves dual purposes: detecting regular key presses and triggering fingerprint recognition mode, eliminating the need for separate continuous activation mechanisms.
2Measurement precision
If pressure sensing is added to distinguish intended from false touch operations, then operational accuracy is improved, but device complexity increases
Solution Approach 1:
The pressure sensing layer is integrated with the existing multi-layer structure of the physical key component. The pressure sensing layer is positioned between the touch key layer and the fingerprint identification layer, merging multiple functions (touch detection, pressure sensing, fingerprint recognition) into a single integrated component assembly, thereby reducing overall system complexity despite added functionality.
Solution Approach 2:
The pressure sensing layer serves multiple functions: distinguishing between intended and false touch operations, enabling different response instructions based on pressure thresholds, and working in conjunction with the fingerprint identification layer for enhanced authentication. This multi-functionality justifies the added layer within the integrated structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively differentiates between intended and false touch operations, enhancing user experience by reducing errors and providing tactile feedback, while also optimizing power consumption by controlling the fingerprint identification layer's energization.
Implementation Method 1
a touch key layer (110), positioned above the pressure sensing layer (120); and the touch key layer (110) is a capacitive touch key layer
Implementation Method 2
a pressure sensing layer (120), configured to acquire a magnitude of touch pressure of the touch operation
Data Source
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AI summary
The present disclosure discloses a physical key component, a terminal, and a touch response method and device, and belongs to the technical field of touch. The physical key component includes: a touch key layer and a pressure sensing layer; the touch key layer is positioned above the pressure sensing layer; the touch key layer is configured to receive touch operation; and the pressure sensing layer is configured to acquire touch pressure of the touch operation performed on the touch key layer. The touch pressure is acquired through the pressure sensing layer, a response instruction is generated according to the touch pressure, and the terminal executes the touch instruction. Since the response instruction is generated according to the touch pressure of the touch operation, the problem that user's false touch operations are responded by a terminal may be avoided, and it is possible to achieve the effects of effectively distinguishing intended operation and the false touch operation of the user and improving user experiences.