Earphone Configuration Parameter Adaptation via Ear Reflection Signal

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Solution Overview

Problem

Existing earphones fail to adaptively adjust their configuration parameters to match individual user ear structures, leading to suboptimal sound quality and user experience.

Innovation Solution

A method involving the transmission of a detection signal, reception of a reflection signal, and adjustment of signal transmission parameters based on signal differences between the reflection and standard signals to determine and optimize earphone configuration parameters, such as equalizer settings and sounding cavity volume, to match the user's ear anatomy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If earphones use fixed configuration parameters, then device complexity is reduced, but sound quality and adaptability to individual users deteriorate

Engineering Contradiction:
Improveadaptability to individual user ear structuresVSAvoidconfiguration parameter adjustment mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The earphone system performs self-diagnosis and self-adjustment by automatically detecting the user's ear structure characteristics through reflection signals and autonomously optimizing configuration parameters without requiring manual user intervention or complex external adjustment mechanisms

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system transmits detection signals, receives reflection signals from the user's ear, compares the reflected signal with standard signals, and uses this feedback loop to automatically adjust configuration parameters until the signal difference meets preset conditions, achieving adaptive optimization

Inventive Principle:
Principle #23Feedback

2Measurement precision

If earphones transmit higher power detection signals, then detection accuracy improves, but energy consumption increases

Engineering Contradiction:
Improvedetection signal accuracyVSAvoidenergy consumption of detection signal transmission
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts the power of detection signals based on real-time detection needs and signal quality requirements, rather than using fixed high power continuously, thereby maintaining detection accuracy while optimizing energy consumption

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the power parameter of detection signals adaptively during the detection process, adjusting signal strength according to the detected ear structure characteristics and signal quality feedback to balance measurement precision and energy efficiency

Inventive Principle:
Principle #35Parameter changes

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 approach enables adaptive adjustment of earphone configuration parameters, optimizing sound quality and improving user experience by reducing signal differences and matching the earphone settings to the user's ear structure, while also allowing for user recognition and power management.

Implementation Method 1

receiving a reflection signal formed after the detection signal is reflected by a characteristic structure of an ear of a user

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS11197081B2Method for determining configuration parameter and earphone
Publication Date: 2021.12.07 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US11197081B2 patent drawing
  • US11197081B2 patent drawing
  • US11197081B2 patent drawing

AI summary

A method for determining a configuration parameter includes: transmitting a detection signal; receiving a reflection signal formed after the detection signal is reflected by a characteristic structure of an ear of a user; adjusting a signal transmission parameter of the detection signal according to a signal difference between the reflection signal and a standard signal until the signal difference meets a first preset condition, to determine the configuration parameter of an earphone.