Earphone Noise Reduction Mode Switching via Conversation Detection
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Solution Overview
Problem
Current earphones require manual switching of noise reduction modes, leading to poor user experience as users in active noise reduction mode often miss conversation demands due to reduced awareness of external sounds.
Innovation Solution
An earphone noise reduction mode switching method that automatically switches from active noise reduction mode to aware or voice enhanced mode when a conversation request is detected, allowing users to respond to conversation demands while maintaining noise reduction functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the earphone is in active noise reduction mode, then noise shielding performance is improved, but user awareness of external sounds deteriorates
Solution Approach 1:
The patent implements dynamic switching between active noise reduction mode and aware mode based on detected conversation demands. The system transitions from a static noise reduction state to a dynamic state where the noise reduction level adjusts automatically in response to external acoustic events, resolving the contradiction by making the noise shielding performance adaptable rather than fixed.
Solution Approach 2:
The system uses acoustic signal processing to detect conversation demands from external environments and provides feedback to automatically switch noise reduction modes. This feedback mechanism allows the system to monitor external sounds and adjust the noise reduction level accordingly, maintaining noise shielding while restoring user awareness when conversations are detected.
2Ease of operation
If manual noise reduction mode setting is used, then user control over noise reduction is improved, but response to conversation demands deteriorates
Solution Approach 1:
The patent enables the earphone system to automatically detect conversation demands and switch noise reduction modes without requiring manual user intervention. The system serves itself by using its own acoustic sensors to monitor the environment and autonomously adjust noise reduction settings, eliminating the time loss associated with manual mode switching while maintaining effective noise control.
Solution Approach 2:
The system performs preliminary detection of conversation demands using acoustic signal processing before the user would need to manually switch modes. By detecting conversation patterns in advance and pre-switching to appropriate noise reduction levels, the system reduces the response time to conversation demands while maintaining ease of operation through automatic control.
3Loss of time
If automatic mode switching is implemented, then response to conversation demands is improved, but system complexity increases
Solution Approach 1:
The patent replaces complex mechanical or manual mode switching mechanisms with electronic acoustic signal processing and automated control algorithms. By using software-based detection of conversation demands and electronic switching between pre-defined noise reduction modes, the system achieves fast response times while keeping the physical device structure relatively simple.
Solution Approach 2:
The system uses the existing acoustic sensors and processors in the earphone for multiple functions: both for primary audio processing and for detecting conversation demands. This multi-functionality approach allows automatic mode switching without adding significant hardware complexity, as the same components serve dual purposes.
Data Source
AI summary
The present disclosure provides an earphone noise reduction mode switching method applied to a first earphone which is in an active noise reduction mode, and the method comprises: in the event of receiving a first conversation request from a second earphone, switching the active noise reduction mode to an aware mode or a voice enhanced mode; wherein the first conversation request is a request sent to the first earphone after the second earphone establishes a link with the first earphone in the event that the second earphone detects that a second user wearing the second earphone has a conversation demand and the first earphone is a target orientation earphone for the second user.