Dual-Touch Earpiece Layout for False Touch Prevention

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Solution Overview

Problem

Current ear-clip earphones are prone to false touches during use, which complicates their functionality and fails to meet user requirements effectively.

Innovation Solution

The earphone incorporates first and second touch detection elements on a housing, generating touch indication signals that are processed by a circuit to generate control instructions based on preset logic, with features like wearing and left-right ear detection to enhance accuracy and prevent false touches.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If touch detection elements are added to enable user interaction, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveuser interaction capabilityVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The first and second touch detection elements are integrated into the same first housing, allowing a single component to serve multiple interaction functions. This multi-functional design enables diverse user operations (single touch, double touch, long press, etc.) without proportionally increasing overall device complexity

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

Solution Approach 2:

The touch detection functionality is segmented into two distinct touch detection elements positioned at different locations on the housing. This segmentation allows independent detection and processing of different user gestures on different surfaces, enabling sophisticated interaction control while maintaining modular design

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If multiple touch detection elements are used to improve interaction control, then ease of operation is improved, but false touches increase

Engineering Contradiction:
Improveinteraction controlVSAvoidfalse touch rate
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The first and second touch detection elements are arranged back-to-back in opposite directions, creating spatial separation in multiple dimensions. This dimensional arrangement ensures that user touches on different surfaces are physically distinct and can be independently detected, preventing false touches where a single user action would otherwise trigger multiple detection elements simultaneously

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The processing circuit analyzes touch indication signals from both touch detection elements in combination, using preset judgment logic that considers the relationship between signals from different elements. This feedback-based processing distinguishes between intentional user gestures and false touches by evaluating the coherence and pattern of signals across multiple detection points

Inventive Principle:
Principle #23Feedback

3Reliability

If touch detection elements are arranged back-to-back to prevent false touches, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improvetouch detection accuracyVSAvoidarrangement complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Both the first and second touch detection elements are integrated into and supported by the same first housing structure. This merging approach consolidates multiple detection elements and their support structures into a single integrated component, reducing overall device complexity while maintaining the back-to-back spatial arrangement necessary for reliable touch detection

Inventive Principle:
Principle #5Merging (Combining)

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

This design effectively prevents false touches, improves touch operation detection accuracy, and enriches interactive functions, enhancing the earphone's applicability and user control experience.

Implementation Method 1

The first touch detection element is configured to generate a first touch indication signal in response to a capacitance change caused by a touch operation of a user on the first touch region

Methodology Applied
Scientific EffectCapacitance: Capacitance

Data Source

PatentEP4712505A1earpiece
Publication Date: 2026.03.18 SHENZHEN SHOKZ CO LTD
  • EP4712505A1 patent drawingFigure 1
  • EP4712505A1 patent drawingFigure 2
  • EP4712505A1 patent drawingFigure 3

AI summary

The present disclosure provides an earphone. The earphone includes a first housing, a first touch detection element, a second touch detection element, and a processing circuit. The first housing has a first touch region and a second touch region that are spaced apart from each other and arranged back-to-back in orientation. The first touch detection element is configured to generate a first touch indication signal in response to a capacitance change caused by a touch operation of a user on the first touch region. The second touch detection element is configured to generate a second touch indication signal in response to a capacitance change caused by a touch operation of the user on the second touch region. The processing circuit is configured to generate a control instruction based on the first touch indication signal, the second touch indication signal, and a preset instruction generation logic.