Gesture-Based Enlarged Area for Precise Cursor Positioning

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Solution Overview

Problem

The limited size of smartphone and tablet screens makes data editing inconvenient due to small touch display screens, where users struggle to accurately adjust the position of handles for editing data, leading to difficulties in controlling and positioning cursor movements.

Innovation Solution

A data editing method and apparatus that creates an enlarged area on the screen based on user gesture input, allowing the area to be adjusted to a stationary or movable state, enabling precise cursor positioning and editing within the adjusted area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional handle-based data editing is used on small screens, then the editing function can be provided, but the user cannot easily and accurately adjust the position of the finger when editing data

Engineering Contradiction:
Improvecursor positioning accuracyVSAvoidfinger positioning difficulty
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent introduces a dimension transition by switching between a full-screen display mode and an enlarged display mode. When the user performs a specific gesture (e.g., long press), the interface transitions from displaying the entire document to displaying an enlarged view of the selected area, allowing precise cursor positioning through natural finger movement on the larger displayed elements.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If handles are set at positions to be edited for data selection, then data can be selected and edited, but the data is easily blocked by the upper and lower handles and it is quite difficult to control the handles

Engineering Contradiction:
Improvehandle control difficultyVSAvoidediting operation complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts the handles from the visible interface in the enlarged display mode. Instead of showing handles that block the data, the system uses gesture-based selection where the handles are implicitly managed through touch gestures, allowing users to select and edit data without visual interference from control elements.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a selection area or highlight region as an intermediary between the user's finger and the data. This intermediary visual feedback mechanism shows what data will be selected without requiring direct manipulation of handles, simplifying the control process while maintaining precision.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If the screen size is limited, then the terminal can be portable, but the data editing function cannot be conveniently used due to small touch display screen

Engineering Contradiction:
Improvedata editing convenienceVSAvoiddisplay screen area
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The patent implements a dynamic display that adapts its scale based on user interaction. The system transitions between different display states (full-screen view and enlarged view) depending on the editing task requirements, allowing the effective display area to dynamically expand when precision editing is needed while maintaining portability.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10963143B2Data editing method and apparatus
Publication Date: 2021.03.30 HUAWEI TECH CO LTD
  • US10963143B2 patent drawing
  • US10963143B2 patent drawing
  • US10963143B2 patent drawing

AI summary

Embodiments of the present invention disclose a data editing method and apparatus. In the present invention, the method includes: obtaining first gesture information entered by a user; creating an enlarged area according to an indication position on a screen of a terminal by the first gesture information; obtaining second gesture information entered by the user, where the second gesture information is used to adjust the enlarged area to be in a stationary state or a movable state; adjusting the enlarged area in the stationary state or the movable state, activating, by using third gesture information, data displayed in an enlarged manner within the adjusted enlarged area to an editable state, and editing the data displayed in an enlarged manner within the adjusted enlarged area. The present invention can improve operation flexibility of data editing.