Touchscreen False Touch Correction via Multi-Dimensional Analysis

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Solution Overview

Problem

Existing touch technologies struggle to differentiate between false and intended touch operations on narrow-framed touchscreens, often inadvertently shielding useful touch operations, leading to degraded user experience.

Innovation Solution

A method for false touch prevention that determines the type of touch operation by analyzing the touch shape and coordinates of the start touch point, correcting doubtful touch points based on an occurrence process, and reporting the corrected touch points to prevent accidental shielding of useful operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a simple false touch prevention method is used to shield doubtful touch operations, then false touch operations can be blocked, but useful touch operations are also accidentally shielded

Engineering Contradiction:
Improvefalse touch preventionVSAvoidtouch operation accuracy
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent segments the touch operation analysis into multiple independent judgment dimensions: touch shape analysis, coordinate analysis, occurrence process analysis, and determining policy analysis. Each dimension independently evaluates the touch operation and provides a judgment result. Only when all dimensions confirm a touch as false is it ultimately blocked, preventing accidental shielding of useful operations while maintaining comprehensive false touch prevention.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If the touchscreen frame is narrowed to improve user experience, then the display area increases, but false touches from hand contact increase

Engineering Contradiction:
Improvetouchscreen display areaVSAvoidfalse touch frequency
Core Design Contradiction:
Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality analysis by examining the specific characteristics of touch operations at different locations and contexts. It analyzes touch shape, coordinates, and occurrence process locally for each touch event to determine whether it is false or useful. This localized analysis allows the system to maintain narrow frame design while preventing false touches through context-aware judgment.

Inventive Principle:
Principle #3Local quality

3Reliability

If all touch points in a doubtful operation are shielded to prevent false touches, then false touch prevention is achieved, but the complexity of touch processing increases

Engineering Contradiction:
Improvefalse touch preventionVSAvoidtouch processing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements partial action by selectively shielding only the specific touch points that are confirmed as false through multi-dimensional analysis, rather than shielding all touch points in a doubtful operation. The system performs determination and correction for each touch point based on the occurrence process and preset policies, applying shielding only where necessary. This reduces unnecessary processing complexity while maintaining effective false touch prevention.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS10955980B2Terminal and method for touchscreen input correction
Publication Date: 2021.03.23 HUAWEI TECH CO LTD
  • US10955980B2 patent drawing
  • US10955980B2 patent drawing
  • US10955980B2 patent drawing

AI summary

A method and a terminal for false touch prevention. The method includes determining a type of a touch operation performed on a touchscreen by a user, correcting a false touch point in a doubtful touch operation based on an occurrence process of a screen point touch event in the doubtful touch operation and a preset determining policy when the touch operation is a doubtful touch operation, and reporting the corrected false touch point.