Virtual Keyboard Vibration Feedback for Touch Typing Anchor Keys

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Virtual keyboards lack the tactile feedback features of physical keyboards, making touch typing difficult.

Innovation Solution

Implement vibration feedback elements on a touchscreen to provide tactile feedback, specifically targeting anchor point keys to enhance user experience and muscle memory.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a virtual keyboard is provided on a touchscreen, then portability is improved, but tactile feedback capability deteriorates

Engineering Contradiction:
ImproveportabilityVSAvoidtactile feedback capability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies mechanical vibration by driving specific vibration feedback elements to generate tactile feedback when anchor point keys are touched. This creates a mechanical vibration effect on the touchscreen surface, providing users with tactile sensation similar to physical keyboards while maintaining the portability benefits of a virtual keyboard.

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The patent implements feedback by detecting touch operations on anchor point keys and triggering corresponding vibration feedback elements. This closed-loop feedback mechanism provides real-time tactile response to user input, enhancing the typing experience without compromising portability.

Inventive Principle:
Principle #23Feedback

2Reliability

If vibration feedback elements are activated for all keys, then tactile feedback completeness is improved, but user confusion increases

Engineering Contradiction:
Improvetactile feedback completenessVSAvoiduser confusion
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies local quality by activating vibration feedback elements only at specific anchor point key locations rather than uniformly across all keys. This localized approach provides sufficient tactile guidance for finger positioning while avoiding overwhelming feedback that could cause user confusion.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent uses partial action by selectively activating vibration feedback only for anchor point keys that require positioning assistance, rather than activating all feedback elements. This partial activation provides necessary tactile guidance while maintaining a calm user experience.

Inventive Principle:
Principle #16Partial or excessive action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances touch typing accuracy by providing targeted tactile feedback, reducing confusion and improving user familiarity with virtual keyboards.

Implementation Method 1

The electronic device indicates the first vibration feedback element to emit a vibration wave

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentUS12530083B2Feedback method and related device
Publication Date: 2026.01.20 HUAWEI TECH CO LTD
  • US12530083B2 patent drawing
  • US12530083B2 patent drawing
  • US12530083B2 patent drawing

AI summary

An embodiment provides a feedback method, applied to an electronic device provided with a touchscreen. The touchscreen is provided with a plurality of vibration feedback elements. The method includes detecting a first contact operation acting on the touchscreen, and obtaining first location information of a first contact point corresponding to the first contact operation, where the first location information corresponds to a first virtual key on a virtual keyboard. The method also includes if the first virtual key is an anchor point key, obtaining, from the plurality of vibration feedback elements, a first vibration feedback element that matches the first virtual key, and indicating the first vibration feedback element to emit a vibration wave, to prompt that the first virtual key is an anchor point key, so that the user can sense a location of the anchor point key. This can reduce difficulty in implementing touch typing on the touchscreen.