Cursor Control via Coordinate Calculation for Large Display Precision
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Solution Overview
Problem
Users face difficulties in accurately moving a cursor to a desired object on a display screen due to factors like input device configuration, screen size, and distance between the user and the screen, making it challenging to select objects such as hyperlinks or icons.
Innovation Solution
A display apparatus and control method that process input coordinates from an input device to move a cursor towards an object within an image, calculating a third point based on movement information and adjusting the cursor's path to reach the object within a preset radius, with features like gradual speed reduction and axis alignment, allowing for intuitive selection of objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a user manually moves the cursor through input device manipulation, then the cursor can be positioned on the display screen, but it becomes difficult to accurately reach the desired object due to screen size, distance, and input device configuration
Solution Approach 1:
The patent introduces an intermediary automated cursor movement mechanism that translates the user's single input action into intelligent cursor navigation. The system calculates the third point based on movement information and automatically adjusts the cursor path, acting as a mediator between the user's simple input and the complex task of accurate cursor positioning on large screens.
Solution Approach 2:
The cursor movement system performs self-service by automatically calculating the optimal path and adjusting its own position based on the received movement information. The system autonomously determines the third point coordinate and navigates the cursor without requiring continuous manual input from the user, enabling the cursor to service itself in reaching the target object.
2Area of stationary object
If the display screen size is increased, then more content can be displayed, but the distance between the user and the desired object increases, making cursor movement more difficult
Solution Approach 1:
The patent solves the large screen cursor movement problem by introducing a computational dimension. Instead of physically moving the cursor through intermediate positions on the screen surface, the system calculates the third point in coordinate space and uses automated control to bridge the distance, effectively adding a computational dimension to overcome the physical distance issue.
3Speed
If the cursor moves quickly to reach distant objects, then movement speed is improved, but precision in reaching the exact object location deteriorates
Solution Approach 1:
The system performs preliminary calculation of the third point coordinate before actual cursor movement begins. By pre-calculating the optimal destination point based on movement information and object position, the system prepares the precise target location in advance, enabling the cursor to move quickly while still achieving accurate positioning at the final destination.
Data Source
AI summary
A display apparatus including: a display unit; a communication unit which receives information about a coordinate from an input device; and an image processor which displays an image including an object and a cursor on the display unit, and moves the cursor toward the object according to a position of the object in the image with respect to information about movement corresponding to a first input coordinate at an input start point and a second input coordinate at an input termination point, wherein the first input coordinate and the second input coordinate are received from the input device through the communication unit.