Touch Input Cursor Manipulation via Two-Finger Gestures
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cursor manipulation methods on touch-sensitive surfaces are inefficient, requiring precise finger contact and often leading to inadvertent key activation, and do not provide a simple and intuitive way to manipulate cursors for content selection and editing in electronic documents.
Innovation Solution
A method that allows cursor manipulation and content selection using two-finger touch inputs anywhere on the touch screen, enabling efficient cursor placement and editing functions without the need for precise finger contact, allowing for text selection and movement from any part of the touch-sensitive surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional cursor manipulation methods are used on touch-sensitive surfaces, then the cursor can be manipulated, but the user must make precise finger contact which is difficult and may lead to inadvertent key activation
Solution Approach 1:
The patent introduces a two-finger gesture as an intermediary mechanism between the user and the cursor manipulation system. Instead of directly touching the cursor location, the user performs a two-finger gesture anywhere on the screen, and the system translates this gesture into precise cursor control. This intermediary gesture solves the problem of needing precise finger contact while maintaining ease of operation.
Solution Approach 2:
The patent uses a virtual representation of cursor control through two-finger gestures. The gesture itself becomes a copy or proxy for traditional mouse-like cursor manipulation, allowing users to control the cursor without directly interacting with the cursor's physical location on the screen. This copying approach eliminates the need for precise finger placement while maintaining intuitive control.
2Measurement precision
If precise finger contact is required for cursor manipulation, then cursor control is possible, but the user cannot see the precise location of the cursor under their finger
Solution Approach 1:
Instead of requiring the user's finger to be at the cursor location (traditional approach), the patent inverts the interaction by allowing the user to gesture from any location on the screen. The system then translates this remote gesture into precise cursor control. This inversion solves the visibility problem by decoupling the user's finger position from the cursor position.
3Productivity
If conventional mouse or peripheral input mechanisms are used, then cursor manipulation is possible, but the user must move one hand away from the keyboard reducing efficiency
Solution Approach 1:
The patent makes the touch-sensitive display serve multiple functions: it acts as both the display surface and the input surface for cursor manipulation. The same screen used to display content also receives two-finger gestures for cursor control, eliminating the need for separate peripheral devices like mice. This multi-functionality allows users to keep their hands on the screen throughout the input process, improving productivity.
Data Source
AI summary
An electronic device with a touch screen display displays content of an electronic document, including text, and a cursor is displayed at a line of text within the electronic document. A multi-finger swipe gesture is detected, and in accordance with a determination that the multi-finger swipe gesture is in a direction at least partially parallel to the line of text and towards an edge of the touch screen display, the cursor is moved to a distal point of the text.