Earphone Box-Entry Detection Using Built-In Acoustic Signals
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Solution Overview
Problem
Existing TWS earphone box detection methods, such as Hall switch detection, light perception change, and acceleration induction, are complicated, costly, and prone to misjudgment, leading to poor user experience.
Innovation Solution
An earphone box-entering detection method using acoustic signals picked up by the earphone's microphone to determine if it matches a predetermined signal, eliminating the need for additional sensors and noise signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional sensors (Hall switch, light sensor, acceleration sensor) are added to the earphone box for detection, then the detection function is achieved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The earphone uses its own built-in microphone to detect the box-entering state by picking up acoustic signals generated during insertion. The earphone independently completes the detection function without requiring additional sensors in the box, achieving self-service detection that eliminates complex external sensing systems
Solution Approach 2:
The patent replaces mechanical/electromagnetic sensor-based detection systems with an acoustic signal-based detection system. Instead of using Hall switches, light sensors, or acceleration sensors to detect physical state changes, the system uses the earphone's microphone to capture acoustic signals (collision sounds, insertion sounds) and determines box-entering state through acoustic analysis
2Reliability
If additional sensors and noise signals are added to improve detection reliability, then detection accuracy improves, but manufacturing cost increases
Solution Approach 1:
The earphone leverages its existing microphone component to perform detection functions, eliminating the need for additional sensors in the box. This self-service approach reduces component quantity and manufacturing cost while maintaining detection reliability
Solution Approach 2:
The patent uses acoustic signals that are naturally generated during box-entering events without requiring expensive additional hardware. The solution relies on inexpensive acoustic detection rather than costly sensor systems, reducing manufacturing costs while achieving reliable detection
3Reliability
If traditional sensor-based detection methods are used, then detection function is achieved, but false judgment occurs leading to poor user experience
Solution Approach 1:
The patent replaces sensor-based detection with acoustic signal analysis. The microphone captures acoustic characteristics (collision sounds, insertion sounds) that are inherently tied to the box-entering event, providing more precise and reliable detection compared to sensor-based methods that are prone to false judgments
Solution Approach 2:
The system changes the detection parameter from physical state changes (detected by sensors) to acoustic signal characteristics. By analyzing acoustic parameters such as sound frequency, amplitude, and timing, the system achieves more accurate detection of the box-entering state, reducing false positives and improving measurement precision
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 method simplifies design, reduces costs, and enhances user experience by accurately detecting earphone entry into the box without additional components, ensuring reliable detection through algorithmic control.
Implementation Method 1
acquiring an acoustic signal picked up by an earphone
Data Source
AI summary
The present disclosure provides an earphone box-entering detection method, an apparatus, and a non-transitory computer-readable storage medium. The method includes: acquiring an acoustic signal picked up by an earphone; and determining that the earphone is in a box-entering state in response to determining that the acoustic signal matches a predetermined acoustic signal in the earphone. Through the present disclosure, the design can be simple and the cost is not high.