Capacitive Touch Headset Wire for Gesture Control

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Solution Overview

Problem

Headset wires with high-conductivity metal materials like copper or aluminum are prone to breakage due to external forces and repetitive winding, leading to decreased sensitivity and lifespan, and increased maintenance costs.

Innovation Solution

A headset wire with a specific region made of capacitance material that detects user gestures through current variations, allowing for control of a terminal device without the need for a pressure button, improving performance and lifespan.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If high-conductivity metal material (copper or aluminum) is used for the headset wire, then electrical conductivity is improved, but the wire becomes prone to breakage due to lower flexibility and higher susceptibility to external forces

Engineering Contradiction:
Improveelectrical conductivityVSAvoidwire durability
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent applies composite materials by combining copper core with aluminum alloy cladding. The copper core provides high electrical conductivity while the aluminum alloy outer layer provides enhanced mechanical strength and flexibility. This composite structure resolves the contradiction between electrical conductivity and wire durability by allowing each material to contribute its superior property to the overall wire performance.

Inventive Principle:
Principle #40Composite materials

2Ease of operation

If traditional pressure button control is used in the headset wire, then control function is achieved, but the button sensitivity decreases or malfunctions due to frequent pressing

Engineering Contradiction:
Improvecontrol functionVSAvoidbutton sensitivity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces the mechanical pressure button system with a capacitive touch detection system. Instead of using mechanical switches that wear out from frequent pressing, the invention uses capacitive sensors that detect changes in electrical capacitance when the user touches the wire. This substitution eliminates mechanical wear and maintains consistent sensitivity over time while preserving the control function.

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

3Adaptability or versatility

If the headset wire is subjected to external pulling force and repetitive winding, then the wire can be used flexibly, but the protection layer and internal wires break due to stress

Engineering Contradiction:
ImproveflexibilityVSAvoidstructural integrity
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The patent uses composite materials with copper core and aluminum alloy cladding, where the aluminum alloy provides superior mechanical properties including flexibility and resistance to fatigue from repetitive winding. The protective coating further enhances durability while maintaining flexibility, allowing the wire to withstand external pulling forces and repetitive bending without breaking.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies beforehand cushioning through the protective coating layer that surrounds the internal wires. This protective layer acts as a cushion that absorbs and distributes mechanical stress from external pulling forces and repetitive winding, preventing the internal wires from breaking while maintaining the wire's flexibility for everyday use.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

4Adaptability or versatility

If wire control button is added to the headset wire, then control capability is provided, but the button easily malfunctions and maintenance cost increases

Engineering Contradiction:
Improvecontrol capabilityVSAvoidmaintenance cost
Core Design Contradiction:
Adaptability or versatilityVSEase of repair

Solution Approach 1:

The patent replaces mechanical control buttons with capacitive touch sensors integrated into the wire. This electronic sensing system has no moving parts that can wear out or malfunction, eliminating the need for maintenance and repair. The control capability is maintained through touch gestures detected by the capacitive sensors, while the reliability and ease of repair are significantly improved compared to mechanical buttons.

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

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 the headset wire's performance and longevity by enabling convenient and accurate gesture-based control of terminal devices, reducing maintenance costs and improving user interaction.

Implementation Method 1

a specific region of the headset wire includes capacitance material

Methodology Applied
Scientific EffectCapacitance: Capacitance

Data Source

PatentUS9703386B2Method for controlling terminal device by using headset wire and the terminal device thereof
Publication Date: 2017.07.11 XIAOMI INC
  • US9703386B2 patent drawing
  • US9703386B2 patent drawing
  • US9703386B2 patent drawing

AI summary

The present disclosure provides a method for controlling a terminal device by using a headset wire connected to the terminal device. The method includes: recognizing a user's gesture based on a current detected in a specific region of the headset wire; acquiring control instruction corresponding to the user's gesture; and executing the control instruction. According to the present disclosure, when a current is detected in the specific region of the headset wire, a user's gesture is recognized based on the current, control instruction corresponding to the user's gesture is acquired, and the control instruction is executed to control the terminal. In the whole procedure, the user only needs to touch the specific region of the headset wire without using pressure button to produce current signal, thereby the operation of controlling the terminal device is convenient and fast.