Terminal Stylus Removal Detection for Timely Handwriting Display
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The issue of handwriting persistence on a terminal device screen after the stylus is lifted due to delays in processing and display, leading to a suboptimal user experience.
Innovation Solution
A method to identify stylus removal by monitoring pressure values and signal strength changes, setting a critical threshold for stylus separation, and adjusting display accordingly to ensure timely handwriting disappearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the terminal device continues to display handwriting content after the stylus is removed, then the display stability is maintained, but the user experience deteriorates due to lingering text on the screen
Solution Approach 1:
The system performs preliminary detection of stylus removal by monitoring pressure values and signal strength before the handwriting content is fully displayed. By identifying the stylus removal event in advance through these sensor changes, the system can preemptively stop displaying the handwriting content, preventing the lingering text issue while maintaining smooth display transitions
2Ease of operation
If the terminal device stops displaying handwriting immediately upon stylus removal, then the user experience is improved, but the display stability deteriorates due to potential flickering or incomplete rendering
Solution Approach 1:
The system detects stylus removal events in advance by monitoring pressure and signal strength changes before the handwriting content completes its display cycle. This preliminary detection allows the system to smoothly cease display without abrupt interruptions, maintaining display stability while improving user experience by preventing lingering text
Solution Approach 2:
The system continuously monitors pressure values and coupling signal strength as feedback indicators of stylus state. By using this real-time feedback from sensors, the system can dynamically adjust display behavior based on actual stylus presence, ensuring smooth transitions and stable display performance
3Loss of time
If the terminal device uses pressure value and signal strength monitoring to detect stylus removal, then the handwriting disappearance timing is improved, but the device complexity increases due to additional detection mechanisms
Solution Approach 1:
The system uses existing sensors (pressure sensors and coupling signal detectors) that are already part of the stylus interaction infrastructure. These sensors naturally provide data about stylus presence and pressure, and the system repurposes this existing data for removal detection, avoiding the need for additional dedicated detection hardware while achieving precise timing control
Data Source
Figure 1A~1B
Figure 1C~1D(b)
Figure 2~3
AI summary
Embodiments of this application disclose a handwriting processing method, a terminal device, and a chip system, and are applied to the field of data processing technologies. The method includes: identifying, based on a first pressure value within a preset time range and a latest first signal strength, whether a stylus moves away from a handwriting module; stopping, when the stylus moves away from the handwriting module, displaying to-be-displayed handwriting content inputted by the stylus on the handwriting module within a first time range after a current moment; or stopping responding to several target coupling signals.