Text Input Gesture Correction and Menu Selection via Boundary Crossing

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Solution Overview

Problem

Existing text input systems for portable devices, such as touch-screen interfaces, face challenges in allowing users to efficiently edit incorrectly recognized text without relocating the text insertion position, and in making precise menu selections, which affects usability and speed.

Innovation Solution

The system allows users to perform a distinct 'Re-Edit' gesture to correct incorrectly recognized text without moving the text insertion point, and enables menu selections by crossing the outer boundary of the menu with their input action, reducing the need for precise placement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If users perform traditional text editing operations on portable devices, then text can be corrected, but the text insertion position must be relocated which reduces efficiency

Engineering Contradiction:
Improvetext input efficiencyVSAvoidtext correction operation
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent segments the text editing function into two distinct operations: a selection gesture to identify the text to be corrected, and a separate correction trigger. This segmentation allows the text insertion position to be preserved while enabling correction, as the system remembers the original insertion point and restores it after correction is applied.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary mechanism (the text selection and correction trigger system) that mediates between the user's correction intent and the text insertion position. This intermediary allows correction to occur without direct manipulation of the insertion point, thus preserving efficiency while enabling correction.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If users make precise menu selections on portable devices, then accurate choices can be made, but it requires precise placement which reduces speed

Engineering Contradiction:
Improvemenu selection precisionVSAvoidmenu selection speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent applies dynamics by making the menu selection process adaptive to user input speed. The system dynamically adjusts the selection criteria based on the gesture trajectory and timing, allowing faster selections when precision is less critical while maintaining accuracy when needed. This dynamic approach resolves the contradiction between precision and speed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameters of menu selection from static precise placement to dynamic gesture-based selection. By modifying the selection parameters to include gesture duration, trajectory, and triggering conditions, the system enables faster selections while maintaining sufficient precision through multiple parameter validation.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If text input systems require precise actions, then accuracy can be achieved, but input speed decreases

Engineering Contradiction:
Improveinput action accuracyVSAvoidtext input rate
Core Design Contradiction:
Measurement precisionVSSpeed

Solution Approach 1:

The patent applies partial action by requiring only essential precision for text input gestures. Instead of demanding high precision for all input actions, the system accepts partial precision (coarser gestures) for text entry while reserving fine precision for confirmation and correction operations. This partial precision approach maintains input speed while achieving sufficient accuracy.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS7542029B2System and method for a user interface for text editing and menu selection
Publication Date: 2009.06.02 CERENCE OPERATING CO
  • US7542029B2 patent drawing
  • US7542029B2 patent drawing
  • US7542029B2 patent drawing

AI summary

Methods and system to enable a user of an input action recognition text input system to edit any incorrectly recognized text without re-locating the text insertion position to the location of the text to be corrected. The System also automatically maintains correct spacing between textual objects when a textual object is replaced with an object for which automatic spacing is generated in a different manner. The System also enables the graphical presentation of menu choices in a manner that facilitates faster and easier selection of a desired choice by performing a selection gesture requiring less precision than directly contacting the sub-region of the menu associated with the desired choice.