Earbud Noise Comparison for Dynamic Master Role Switching
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Solution Overview
Problem
Ear-wearable devices with fixed main microphones face challenges in maintaining call quality due to varying noise levels between earbuds in noisy environments, as directional noise affects one earbud more than the other, degrading voice transmission quality.
Innovation Solution
An electronic device with microphones in each earbud compares noise levels and selectively designates one earbud as the master device to establish communication connections, ensuring the voice signal with less noise influence is prioritized for transmission, allowing for adaptive noise reduction and improved call quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed main microphone is designated in one earbud, then the device structure is simple and easy to manufacture, but call quality deteriorates in noisy environments due to directional noise affecting one earbud more than the other
Solution Approach 1:
The patent implements dynamic switching between master and slave roles of earbuds based on real-time noise level comparisons. The system transitions from a static fixed-main-microphone architecture to a dynamic role-assignment architecture where either earbud can become the master device depending on which one experiences lower noise levels, thereby resolving the contradiction between structural simplicity and call quality reliability
Solution Approach 2:
The system changes the operational parameter of noise threshold comparison to determine master-slave role assignment. By monitoring noise levels and comparing them against each other, the system dynamically adjusts which earbud transmits voice data, transforming the fixed role assignment into an adaptive parameter-based decision mechanism that maintains call quality while preserving relative structural simplicity
2Reliability
If noise comparison and dynamic role switching are implemented between earbuds, then call quality is improved in noisy environments, but device complexity increases
Solution Approach 1:
The patent merges the noise detection and role-switching functions into the existing earbud communication framework. By combining the noise level monitoring, comparison logic, and master-slave switching operations into an integrated communication control mechanism, the system achieves improved call quality while minimizing the increase in overall device complexity through functional consolidation rather than adding separate independent subsystems
Data Source
AI summary
Certain embodiments of the disclosure include a first electronic device, comprising at least one microphone, a communication circuit, and at least one processor, wherein the at least one processor is configured to: establish a first communication connection with an external electronic device using the communication circuit, transmit through the first communication connection, to the external electronic device, using the communication circuit, information for a first voice signal obtained using the at least one microphone, receive second noise information for a second voice signal from the second electronic device, by the communication circuit, wherein the second voice signal corresponding to the first voice signal was obtained by a second electronic device while the information for the first voice signal was transmitted to the external electronic device, and transmit, based on first noise information for the first voice signal and the received second noise information satisfy a specified condition, first control information for allowing the second electronic device to establish a second communication connection with the external electronic device, using the communication circuit.