Joystick Cursor Control With Zoomed-Out Views for Precision
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Solution Overview
Problem
Joysticks have limited cursor movement range and accuracy, especially when navigating high-resolution displays, due to structural constraints and sensitivity issues.
Innovation Solution
A cursor control method and device that utilizes a navigation input device to adjust displacement and movement values based on different ratios within distinct image regions, including a mapping and extension region, and switches to a zoomed-out partial image when the cursor is near a target, enhancing movement range and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a joystick is used to move the cursor, then the cursor can be controlled to move on the displayed image, but the movement range of the cursor is limited due to the structural constraints of the joystick
Solution Approach 1:
The patent introduces a zoomed-out partial image display that provides an overview context, effectively adding a second visual dimension. This allows the cursor to navigate across the entire first displayed image while the second displayed image shows the broader context, thereby extending the effective movement range without requiring a physically larger joystick
Solution Approach 2:
The display is segmented into two distinct regions: the first displayed image showing the detailed view and the second displayed image showing the zoomed-out partial image. This segmentation allows independent control of cursor movement in the detailed view while maintaining awareness of the overall context, effectively expanding the usable movement range
2Measurement precision
If the joystick is used to move the cursor on a high resolution displayed image, then the cursor can navigate the image, but the cursor movement accuracy is poor since the cursor is hardly moved to a precise position of the target point due to high sensitivity
Solution Approach 1:
The second displayed image acts as an intermediary that provides zoomed-out context. When the cursor is near a target point, the system displays a zoomed-out partial image that helps the user understand the cursor's position relative to the target and surrounding area, thereby improving positioning accuracy without increasing control sensitivity
Solution Approach 2:
The system provides visual feedback by displaying the zoomed-out partial image that shows the cursor's position in context. This feedback mechanism helps the user adjust the cursor position more accurately by seeing the relationship between the cursor, target point, and surrounding area, thereby improving precision without changing the joystick's sensitivity
Data Source
AI summary
A cursor control method, for moving a cursor on a first displayed image and a second displayed image, comprising: (a) receiving a first displacement value when the cursor is within a first region of the first displayed image and receiving a second displacement value when the cursor is within a second region of the first displayed image; (b) moving the cursor with a first moving value on the first displayed image, which is obtained from the first displacement value and a first ratio; and (d) moving the cursor with a second moving value on the second displayed image, which is obtained from the second displacement value and a second ratio; wherein the first ratio is different from the second ratio; wherein the second displayed image is a zoom out and partial image of the first displayed image. By this way, the cursor movement accuracy can be increased.