Blank Screen Gesture Validation via Touch Parameter Analysis
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Solution Overview
Problem
Accidental activation of blank screen gestures on mobile terminals due to contact with the human body, leading to unintended application triggering, is not effectively addressed by existing methods which require additional hardware and result in power consumption issues.
Innovation Solution
A method that acquires and analyzes specific parameters of the blank screen gesture, such as touch input area, shape, length, slope, speed, and time, to determine if the gesture is accidental, and only responds to valid gestures, thereby avoiding unnecessary activation without requiring additional hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a distance sensor or light sensor is used to detect pocket mode, then accidental gesture operations are prevented, but device complexity and power consumption increase
Solution Approach 1:
The patent replaces the mechanical/sensor-based detection system with a software-based gesture analysis system. Instead of using distance sensors or light sensors to detect pocket mode, the system uses touch parameter analysis (pressure, area, shape, velocity) to distinguish intentional gestures from accidental contacts, thereby eliminating the need for additional sensors while maintaining gesture recognition accuracy
Solution Approach 2:
The system uses the touch screen's own existing capability to detect touch parameters (pressure, area, shape, velocity) to solve the accidental gesture problem. The touch screen serves dual purposes: both for displaying information and for detecting gesture characteristics, eliminating the need for separate detection hardware
2Reliability
If a distance sensor or light sensor is used to detect pocket mode, then accidental gesture operations are prevented, but power consumption increases
Solution Approach 1:
The patent replaces power-consuming sensor operations with software-based touch parameter analysis. The system continuously monitors touch parameters (pressure, area, shape, velocity) that are already being captured by the touch screen controller, eliminating the need for additional power-consuming sensor operations while maintaining accurate gesture recognition
Solution Approach 2:
The touch screen system performs multiple functions simultaneously: display, touch input detection, and gesture validation. By using the same touch detection infrastructure for both normal input and accidental gesture prevention, the system avoids the additional power consumption that would result from running separate sensor systems
3Measurement precision
If multiple touch parameters are analyzed, then gesture validation accuracy improves, but processing complexity increases
Solution Approach 1:
The patent segments the gesture validation process into distinct analysis stages: initial touch detection, parameter measurement (pressure, area, shape, velocity), pattern matching against predefined gesture templates, and validation decision. This segmentation allows the system to process multiple parameters systematically without overwhelming complexity, as each parameter is evaluated in a structured sequence
Data Source
Figure 1~2
AI summary
A method for controlling blank screen gesture processing and a terminal are described. The method comprises: upon receiving a blank screen gesture, acquiring related information of the blank screen gesture; and determining whether the blank screen gesture is a misoperation gesture according to the acquired related information of the blank screen gesture, if the blank screen gesture is not a misoperation gesture, triggering a related operation of the blank screen gesture, and if the blank screen gesture is a misoperation gesture, making no response to the misoperation gesture.