Insertion Marker Placement Aid for Touch Screen Precision
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Solution Overview
Problem
Conventional user interfaces on portable devices, such as touch-sensitive displays, face challenges in precision and efficiency due to small screen sizes and the imprecision of finger contact, which complicates text entry and navigation.
Innovation Solution
A method and system that includes an insertion marker placement aid, which is displayed on the touch screen and moves in accordance with finger contact, allowing users to easily position the insertion marker without obscuring content and improving precision through visual feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a digit (finger) is used to operate the touch-sensitive display, then the user interface can be operated without additional tools, but the contact area is larger than a pointed object which reduces positioning precision
Solution Approach 1:
The patent introduces a visual intermediary element (the movable indicator or insertion marker) that mediates between the user's finger contact and the insertion point. The indicator acts as a mediator that translates the imprecise finger contact into precise insertion marker positioning, allowing the user to see exactly where the insertion will occur without requiring direct precise finger placement on the tiny insertion marker itself.
Solution Approach 2:
The system provides visual feedback by displaying an insertion marker placement aid that shows the user where the insertion marker will be positioned based on finger contact location. This feedback loop allows users to adjust their finger placement to achieve the desired insertion position, compensating for the lack of direct precision in finger contact.
2Volume of moving object
If the screen size is reduced to make the device more compact, then portability is improved, but the contact area of a digit obscures a larger portion of the screen
Solution Approach 1:
The patent segments the interaction into two distinct visual elements: the finger contact area (which remains large and easy to use) and the insertion marker (which is small and precise). The insertion marker placement aid visually connects these two segments, allowing the large finger contact to control the small insertion marker position without the finger obscuring the insertion point.
Solution Approach 2:
The insertion marker placement aid serves as a visual intermediary that bridges the gap between the large finger contact area and the small insertion marker. It allows users to see the relationship between their finger position and the resulting insertion point, enabling precise control on compact screens without the finger obscuring critical display areas.
3Ease of operation
If the contact area of a digit is larger than a pointed object, then ease of contact is improved, but precision in text entry applications is reduced
Solution Approach 1:
The system provides real-time visual feedback by displaying the insertion marker placement aid that shows exactly where the insertion marker will be positioned based on current finger contact. This feedback allows users to see the precision outcome before committing to the action, enabling them to adjust their finger placement to achieve the desired text entry precision while maintaining the ease of using a large finger contact area.
Solution Approach 2:
The insertion marker placement aid acts as a visual intermediary that translates the large, easy-to-use finger contact into precise text insertion positioning. It mediates between the imprecise but easy finger contact and the precise text entry requirement, allowing users to achieve both ease of operation and text entry precision simultaneously.
Data Source
AI summary
An insertion marker that is displayed on a touch screen may be moved by a user via an insertion marker placement aid. The insertion marker placement aid is displayed on the touch screen after a contact with the touch screen is detected. The insertion marker placement aid provides visual feedback to the user, indicating that the insertion marker is subject to repositioning by the user. When the contact is moved across the touch screen, the insertion marker and the insertion marker placement aid is moved in accordance with the movement of the contact. When the contact is broken (i.e., no longer detected), the insertion marker placement aid is removed from display and the insertion marker comes to rest.