Z-Axis Pointer Tracking for Multi-Mode Touch Interaction
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Solution Overview
Problem
Touch-sensitive displays lack the functionality of multiple selection modes, making it difficult for users to interact with target interactive items efficiently, as they can only utilize a single selection mode, which is often slow and less intuitive compared to point and click displays.
Innovation Solution
A method and user interface that utilizes z-axis tracking to enable multiple selection modes by displaying additional selectable options based on the position and movement of a pointer along the z-axis, allowing users to select options with minimal movement and providing intuitive feedback through dynamic resizing and repositioning of interactive items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch-sensitive display uses only a single selection mode, then the device complexity is reduced, but the ease of operation deteriorates compared to point and click displays with multiple buttons
Solution Approach 1:
The patent adds a new dimension of interaction by tracking the pointer's position along the z-axis (distance from the display surface). This vertical dimension enables multiple selection modes without adding physical buttons, as the system detects whether the pointer is close to or far from the display to determine the user's selection intent.
Solution Approach 2:
The system changes the interaction parameter from a single touch plane to a continuous z-axis distance parameter. By monitoring the pointer's distance from the display surface, the system can differentiate between different selection modes (e.g., direct selection when close, contextual menu when far), effectively creating multiple selection modes through parameter variation rather than additional hardware.
2Adaptability or versatility
If a touch-sensitive display enables multiple selection modes, then the adaptability is improved, but the device complexity increases requiring z-axis tracking capability
Solution Approach 1:
The z-axis tracking component serves multiple functions: it detects pointer position, determines selection mode, and enables both direct selection and contextual menu display. This single component provides multi-functionality that would otherwise require separate hardware for each selection mode, thereby improving adaptability while minimizing the increase in device complexity.
Solution Approach 2:
The pointer's z-axis position acts as an intermediary that mediates between the user's physical action and the system's response. By tracking this intermediate parameter, the system can infer user intent and provide appropriate selection modes without requiring complex hardware modifications, thus achieving versatility with minimal complexity increase.
3Productivity
If additional selectable options are displayed based on z-axis position, then the productivity is improved through faster access to options, but the loss of information increases as options may disappear when threshold is crossed
Solution Approach 1:
The system displays additional selectable options in advance when the pointer approaches a certain z-axis threshold position, allowing users to see and select from multiple options before making a final selection. This preliminary display of options enables faster decision-making and improves productivity by reducing the time needed to access contextual functions.
Solution Approach 2:
The system continuously monitors the pointer's z-axis position and provides visual feedback by displaying or hiding options based on the detected position. This real-time feedback mechanism allows users to understand the system's response to their actions, reducing information loss by making the state of options clear at all times, and enabling users to adjust their selection intent by moving the pointer to different z-axis positions.
Data Source
AI summary
A display and interaction method in a user interface is provided. The user interface includes a touch-sensitive display, and can track a position and/or movement of a pointer along a z-axis that extends normally from the display. An interactive item is displayed on the display, and selection of the interactive item is received from the pointer. The position and movement of the pointer along the z-axis relative to the selected interactive item is tracked, and the display of at least one additional selectable option associated with the interactive item is initiated based thereon.