Pointer Coordinate Reset for Image Display Active Area Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Image display devices face challenges in user convenience due to pointer errors and repeated patterns, which can lead to inaccurate control and increased user frustration, especially when the pointer escapes the virtual active area or repeats a trajectory.
Innovation Solution
The method involves calculating and resetting pointer coordinates to display the pointer at the center of the screen if they fall outside a virtual active area or detecting repeated trajectories to maintain accurate control and user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pointer is allowed to move freely across the entire display area, then the user can access all regions of the screen, but the pointer may escape the virtual active area causing control errors and reduced reliability
Solution Approach 1:
The display area is divided into two distinct zones: a virtual active area where pointer movements are fully responsive and mapped to control functions, and a non-active peripheral area that provides visual boundary feedback. The pointer interaction characteristics change based on location - within the virtual active area the pointer responds to all movements, while outside this area the system provides visual cues about boundary conditions without allowing erroneous control inputs.
2Measurement precision
If the pointer coordinates are reset to the center when outside the active area, then pointer control accuracy is maintained, but the user experience may be disrupted due to sudden pointer relocation
Solution Approach 1:
The system performs preliminary detection of pointer position relative to the virtual active area boundaries before allowing coordinate resets. Visual boundary indicators are displayed in advance to alert users when the pointer approaches the active area limits. Only after the pointer has crossed the boundary and the user has observed the boundary indication does the system reset coordinates to the center, ensuring the user is aware of the relocation cause.
Solution Approach 2:
The system provides continuous visual feedback through boundary indicators that show when the pointer is near or outside the virtual active area. This feedback loop allows users to understand why the pointer will be relocated, making the coordinate reset less disruptive. The feedback mechanism transforms an potentially confusing automatic relocation into an expected and understood system behavior.
3Reliability
If the system detects and corrects repeated pointer trajectories, then operational errors are reduced, but the device complexity increases due to additional detection mechanisms
Solution Approach 1:
The system applies trajectory analysis selectively rather than continuously monitoring all pointer movements. It detects repeated trajectories only when specific conditions are met - when the pointer returns to the same region multiple times within a defined time window and follows a similar path pattern. This partial application of trajectory detection reduces computational overhead while still catching common user errors such as accidental repeated selections or unintended pointer movements.
Data Source
AI summary
According to an embodiment of the present invention, a method for operating an image display device using a pointing device includes receiving, from the pointing device, a first signal and a second signal to display a pointer at a particular location on a screen of the image display device, wherein the first signal initiates displaying of the pointer in accordance with a first input selection of the pointing device, determining whether coordinates corresponding to the second signal to display the pointer are outside an active area, wherein the active area is greater than an actual size of the screen, and resetting the coordinates to new coordinates corresponding to a pre-designated area of the screen and displaying the pointer at the pre-designated area of the screen when the coordinates are determined to be outside the active area.