Touchpad Coordinate Mode Switching for Stylus Flexibility
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Solution Overview
Problem
Commercially available touchpads using styluses lack flexibility and selectivity, as they primarily operate in a single absolute coordinate mode, which does not accommodate varying user operating habits or writing purposes.
Innovation Solution
An electronic device with a processor that selects between absolute and relative coordinate modes based on user instructions, converting absolute coordinate information into relative information as needed to enhance flexibility and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a touchpad operates in a single absolute coordinate mode, then the mapping between touchpad and display screen is simple and direct, but the flexibility and selectivity for different user operating habits and writing purposes are lacking
Solution Approach 1:
The touchpad system dynamically switches between absolute coordinate mode and relative coordinate mode based on user input detection. The processor identifies whether to apply absolute or relative coordinate processing by detecting specific input patterns (e.g., pressing certain keys or combining keys with mouse operations), allowing the coordinate mode to adapt flexibly to different user needs without fixed constraints
Solution Approach 2:
The system changes the coordinate processing parameter from fixed absolute coordinate mapping to variable coordinate mode selection. By introducing a switching mechanism that alters the coordinate calculation method based on detected input conditions, the system provides multiple operational characteristics (absolute positioning vs. relative movement) to accommodate different user habits and writing purposes
2Ease of operation
If absolute coordinate information is directly processed without conversion, then the processing is simple and fast, but it cannot accommodate users who prefer relative coordinate operations
Solution Approach 1:
The processor acts as an intermediary that receives absolute coordinate information from the touchpad and conditionally converts it to relative coordinate information based on detected switching instructions. This intermediary conversion process allows the system to maintain simple direct processing when absolute mode is used while enabling relative coordinate operations when needed, thus accommodating different user preferences without requiring fundamentally different hardware systems
Data Source
AI summary
This application provides an electronic device, including: a processor, configured to select one of an absolute coordinate mode and a relative coordinate mode according to a switching instruction. When the processor uses the absolute coordinate mode, absolute coordinate information received by the processor is run in the absolute coordinate mode; and when the processor uses the relative coordinate mode, the absolute coordinate information received by the processor is converted into relative coordinate information and is run in the relative coordinate mode. Therefore, this application performs adaptive conversion between the absolute coordinate mode and the relative coordinate mode, to provide users with more flexible operations.