Wireless Earphone Antenna Modules for Gesture Control

Solution Overview

Problem

True wireless stereo earphones face challenges in receiving radio frequency signals from all directions while also implementing wearing detection and gesture-control functions due to limited inner space, requiring innovative solutions to enhance communication quality and add functionality without additional components.

Innovation Solution

The design incorporates a first and second antenna module, a radio frequency module, a sensing module, and a processing module, where the sensing module shares the antenna modules to sense capacitance changes for gesture-control and wearing detection, utilizing capacitor and inductor structures to isolate signals and a processing module to generate control signals, all integrated on flexible printed circuit boards to optimize space and functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple sets of antennas are required for TWS earphones to receive radiation frequencies from different directions, then communication quality is improved, but device complexity and space occupation increase

Engineering Contradiction:

Improvecommunication qualityVSAvoidantenna configuration

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The antenna module is designed to perform multiple functions: it serves as both a communication antenna for receiving radio frequency signals and a sensing element for detecting capacitance changes. By integrating wearing detection and gesture control capabilities into the same antenna structure, the patent achieves multi-functionality without adding separate components, thus improving communication quality while controlling device complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the communication antenna and sensing functions into a single integrated antenna module. The antenna structure is designed to simultaneously handle radio frequency signal reception and capacitance sensing for wearing detection and gesture control, merging multiple functions into one component to reduce overall device complexity

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If additional components are added to accomplish wearing detection and gesture-control functions, then functionality is improved, but inner space occupation increases

Engineering Contradiction:

ImprovefunctionalityVSAvoidinner space

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The antenna module is designed to perform multiple functions: it serves as both a communication antenna for receiving radio frequency signals and a sensing element for detecting capacitance changes. By integrating wearing detection and gesture control capabilities into the same antenna structure, the patent achieves multi-functionality without adding separate components, thus improving functionality while controlling space occupation

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the communication antenna and sensing functions into a single integrated antenna module. The antenna structure is designed to simultaneously handle radio frequency signal reception and capacitance sensing for wearing detection and gesture control, merging multiple functions into one component to reduce overall device volume

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 configuration allows for effective reception of radio frequency signals from various directions, enabling reliable communication and adding features like wearing detection and gesture-control without increasing component count, thereby addressing the space constraints and functional requirements of true wireless stereo earphones.

Implementation Method 1

the sensing module is used to sense a capacitance value of a first parasitic capacitance of the first antenna module and generate a corresponding first sensing signal and used to sense a capacitance value of a second parasitic capacitance of the second antenna module and generate a corresponding second sensing signal

Methodology Applied

Scientific EffectCapacitance sensing: Capacitance

Data Source

PatentUS11632616B2Wireless earphones

Publication Date: 2023.04.18 NANJING SILERGY MICRO (HK) CO LTD

AI summary

Wireless earphones comprising a first antenna module, at least one second antenna module, a radio frequency module, a sensing module, a speaker module and a processing module. The radio frequency module is used to receive or transmit radio frequency signals by the first antenna module or the second antenna module; the sensing module is used to sense a capacitance value of a first parasitic capacitance of the first antenna module and generate a corresponding first sensing signal and used to sense a capacitance value of a second parasitic capacitance of the second antenna module and generate a corresponding second sensing signal; the speaker module is used to play audio signals; and the processing module is used to generate a control signal according to the radio frequency signal, the first sensing signal or the second sensing signal to control the speaker module to play the audio signal corresponding to the control signal.