Force-Sensing Button With Tactile Feedback for Operation Confirmation

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Solution Overview

Problem

Existing electronic device buttons can only perform simple pressing actions and lack feedback mechanisms to confirm successful operations or detect incorrect actions.

Innovation Solution

An electronic device equipped with a button and an internal external force recognition and tactile feedback component that recognizes the magnitude of external forces applied to the button and provides corresponding tactile feedback, such as vibration, to indicate operation success or failure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If simple mechanical buttons are used, then device complexity is reduced, but user feedback capability is insufficient

Engineering Contradiction:
Improveoperation confirmationVSAvoidbutton structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a feedback mechanism where the tactile feedback component generates vibrations or haptic responses when the button is pressed. This provides users with immediate tactile confirmation of their input, resolving the contradiction by adding feedback capability without requiring a complete redesign of the button structure.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The button structure is enhanced to serve multiple functions: it acts as both a mechanical input device and a trigger for tactile feedback. By integrating the feedback function into the existing button mechanism, the patent avoids increasing device complexity while improving operational reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If external force recognition is added, then operation accuracy is improved, but device complexity increases

Engineering Contradiction:
Improveforce magnitude detectionVSAvoidsensing system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The external force recognition function is merged with the existing button structure and tactile feedback component. The same component that provides tactile feedback also detects the magnitude of external force, eliminating the need for separate sensing systems and minimizing the increase in device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The tactile feedback component serves dual purposes: it provides haptic feedback to the user and simultaneously acts as the sensing element for detecting external force magnitude. This self-service approach allows force detection without adding dedicated sensing hardware, thus maintaining simplicity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12321522B2Electronic device and method for external force recognition and tactile feedback for electronic device
Publication Date: 2025.06.03 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US12321522B2 patent drawing
  • US12321522B2 patent drawing
  • US12321522B2 patent drawing

AI summary

An electronic device that can include a device main body, a button on the device main body and at least partially exposed out of the device main body, and an external force recognition and tactile feedback component inside the device main body and opposite to the button. The external force recognition and tactile feedback component can recognize a magnitude of an external force and perform a corresponding tactile feedback action based on the recognized magnitude of the external force, when the button is subjected to the external force. An external force recognition and tactile feedback method for an electronic device includes recognizing a magnitude of an external force, and performing a corresponding tactile feedback action based on the recognized magnitude of the external force.