Touch Keyboard Pressure Thresholds for Accurate Content Input

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Solution Overview

Problem

Current touch keyboards lack tactile feedback, leading to inadvertent touches and reduced typing efficiency and user experience due to their sensitivity, making blind typing difficult and causing user fatigue.

Innovation Solution

A content input method for touch input devices that sets pressure thresholds to differentiate between intended and inadvertent touches, allowing for improved typing efficiency and user experience by ignoring inadvertent touches and providing feedback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If touch-type keyboard is used to replace mechanical key type, then device versatility is improved, but input accuracy deteriorates due to inadvertent touches

Engineering Contradiction:
Improvedevice versatilityVSAvoidinput accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent changes the pressure threshold parameter to differentiate between intentional and accidental touches. By setting a specific pressure threshold, the system can distinguish between light inadvertent touches (which should be ignored) and deliberate typing actions (which should be recognized), thereby improving input accuracy while maintaining the versatility of touch-type keyboard.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If touch-sensitive display is made highly sensitive for responsive input, then ease of operation is improved, but reliability deteriorates due to false triggers

Engineering Contradiction:
Improveease of operationVSAvoidreliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent adjusts the pressure threshold parameter to filter out false triggers. By setting an appropriate pressure threshold, the system maintains high sensitivity for user interaction while eliminating spurious inputs caused by palm contact or accidental touches, thus improving reliability without sacrificing ease of operation.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If pressure sensitivity is increased for better touch response, then productivity is improved, but loss of information increases due to inadvertent input

Engineering Contradiction:
ImproveproductivityVSAvoidinadvertent input
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The patent optimizes the pressure threshold parameter to balance productivity and information accuracy. By setting the threshold at an optimal level, the system captures legitimate typing actions that boost productivity while filtering out inadvertent touches that would cause information loss, achieving both goals simultaneously.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3961359B1Content input method, touch input device and storage medium
Publication Date: 2025.07.30 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP3961359B1 patent drawingFigure 1~2
  • EP3961359B1 patent drawingFigure 3~4
  • EP3961359B1 patent drawingFigure 5~6

AI summary

The disclosure relates to a content input method, touch input device, and storage medium. The content input method includes: obtaining pressure information applied to a first preset area of a display area; determining, according to a first pressure threshold, whether the pressure information applied to the first preset area is inadvertent touch information; if the pressure information applied to the first preset area is the inadvertent touch information, ignoring the pressure information.