Intensity-Sensitive Button Tactile Feedback Mechanism

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Solution Overview

Problem

Electronic devices with mechanical buttons provide limited feedback to users, making navigation between user interfaces inefficient and unintuitive.

Innovation Solution

Implementing intensity-sensitive buttons with tactile output generators that provide visual, haptic, and audio feedback, allowing users to select and configure tactile output settings for enhanced interaction with the home button, improving user interface manipulation efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If mechanical buttons are used for navigation, then the device structure is simple, but the feedback to users is limited and navigation efficiency is poor

Engineering Contradiction:
Improvenavigation efficiencyVSAvoidbutton structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical button systems with intensity-sensitive buttons that incorporate tactile output generators. These generators create haptic feedback patterns without requiring complex mechanical moving parts, thus improving navigation efficiency while avoiding significant increases in structural complexity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent implements multiple feedback mechanisms including visual feedback through icons and text, haptic feedback through tactile output generators, and audio feedback. This multi-sensory feedback system enhances navigation efficiency by providing users with comprehensive information about their interactions.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If multiple tactile output settings are provided, then user customization is improved, but the configuration interface complexity increases

Engineering Contradiction:
Improvetactile output customizationVSAvoidconfiguration interface complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic preview functionality where the selected tactile output setting is applied in real-time during the configuration process. Users can hear and feel the actual feedback patterns before finalizing their selection, making the configuration process intuitive despite multiple available settings.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system automatically applies the selected tactile output setting to the home button during the configuration process, allowing users to test and evaluate different settings without manual intervention. This self-testing capability simplifies the configuration experience.

Inventive Principle:
Principle #25Self-service

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

The solution enhances user interaction by providing intuitive feedback, reducing the number and nature of user inputs, and creating a more efficient human-machine interface through customizable tactile outputs.

Implementation Method 1

providing, via the one or more tactile output generators, a first tactile output that corresponds to the first tactile output setting

Methodology Applied
Scientific EffectHaptic feedback: Vibration

Data Source

PatentEP3518079B1Devices, methods, and graphical user interfaces for providing feedback during interaction with an intensity-sensitive button
Publication Date: 2024.10.16 APPLE INC
  • EP3518079B1 patent drawingFigure 1A
  • EP3518079B1 patent drawingFigure 1B
  • EP3518079B1 patent drawingFigure 1C

AI summary

An electronic device: while displaying a user interface, detects an input sequence that includes detecting an increase in a characteristic intensity of a contact on a home button. In response, the device determines whether the increase is above a first intensity threshold and whether a change in the characteristic intensity proximate to a time when the characteristic intensity increases above the first intensity threshold has a first or a second value for an intensity-change metric. If the increase is above the threshold and the change has the first value, the device performs a first operation that changes the user interface displayed on the display; and generates a first discrete tactile output that corresponds to the increase. If the increase is above the threshold and the change has the second value, the device performs the first operation and generates a second discrete tactile output that corresponds to the increase.