Stylus Coordinate Mapping for Fixed-Orientation Screens
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Solution Overview
Problem
Existing electronic devices struggle to adjust the coordinate system of a displayed pointing object when rotated, leading to misalignment with stylus movements, especially when the screen orientation is fixed.
Innovation Solution
A method and electronic device that establish a wireless connection with a stylus, display a pointing object corresponding to the stylus's position, and adjust the coordinate system based on orientation and screen fixation information, allowing the pointing object to move accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the screen orientation is fixed to a specified direction, then the screen direction remains stable, but the coordinate system does not change when the device is rotated, causing misalignment between the pointing object and stylus movement
Solution Approach 1:
The patent applies dynamics by making the coordinate system changeable based on device rotation state. When the device is rotated, the coordinate system dynamically adjusts to maintain alignment between the pointing object and stylus movement, while the screen orientation remains fixed. This resolves the contradiction by introducing dynamic adaptation to the coordinate system without affecting screen stability.
2Measurement precision
If the coordinate system changes with device rotation, then the pointing object aligns with stylus movement, but the screen orientation becomes unstable
Solution Approach 1:
The patent segments the coordinate system from the screen orientation system. The screen orientation remains fixed and stable, while a separate coordinate system independently adjusts based on device rotation. This segmentation allows the pointing object to align accurately with stylus movement through coordinate system changes without causing screen orientation instability.
3Ease of operation
If the pointing object moves according to stylus movement in space, then user interaction is enhanced, but the coordinate system adjustment becomes complex
Solution Approach 1:
The patent uses feedback by continuously monitoring device rotation state and automatically adjusting the coordinate system accordingly. The system detects rotation events and triggers coordinate system changes to maintain pointing object alignment, providing seamless user interaction without requiring manual intervention or complex user-aware adjustments.
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
Enables seamless alignment of the pointing object with stylus movements even when the device orientation changes, enhancing user interaction and control.
Implementation Method 1
establishing a wireless communication connection between the electronic device and the stylus
Data Source
AI summary
A method of controlling an electronic device using a stylus includes establishing a wireless communication connection between the electronic device and the stylus; displaying a pointing object on a screen displayed on a display of the electronic device, wherein a position of the pointing object on the screen corresponds to a position of the stylus; obtaining first information related to whether an orientation of the electronic device is changed and second information related to whether the screen is fixed; setting a direction of a coordinate system of the display based on the first information and the second information; and moving the pointing object on the screen within the coordinate system to correspond to a movement of the stylus in space.