Bone Conduction Pickup for Waterproof High-SNR Audio
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Solution Overview
Problem
Designing a waterproof microphone for high-noise environments is challenging due to the difficulty in air conduction path design, and existing microphones suffer from low signal-to-noise ratios and poor sound quality.
Innovation Solution
A pickup is mounted on a bone conduction sound transmitting organ, utilizing an acceleration sensor detection module that is sensitive to solid vibrations, eliminating the need for an air conduction path and enhancing waterproof design, while collecting high-definition sound signals in noisy environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional microphone is used to collect sound through air vibration, then sound signals can be collected, but waterproofing of the cavity structure becomes difficult and signal-to-noise ratio decreases in high-noise environments
Solution Approach 1:
The patent replaces the traditional acoustic microphone system (which requires air conduction paths and cavity structures) with a vibration detection system using acceleration sensors. This mechanical substitution allows direct detection of bone conduction vibrations without requiring complex waterproof cavity structures, thereby resolving the contradiction between waterproofing capability and structural complexity
Solution Approach 2:
The patent introduces bone conduction as an intermediary medium to transmit sound vibrations directly to the acceleration sensor through the skull and teeth. This intermediary approach eliminates the need for air conduction paths and complex cavity structures, enabling simple waterproof design while maintaining reliable sound signal collection
2Measurement precision
If a traditional microphone is used in high-noise environments, then sound signals can be collected, but signal-to-noise ratio is low and sound quality is poor
Solution Approach 1:
The patent converts the harmful effect of ambient noise into a beneficial approach by detecting vibrations through bone conduction instead of air conduction. Since bone conduction vibrations are generated internally by the speaker's own voice, the system inherently rejects external noise interference, thereby improving signal-to-noise ratio and sound quality in noisy environments
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 solution provides improved sound quality with high signal-to-noise ratios and ease of waterproof design, effectively addressing the limitations of traditional microphones in noisy conditions.
Implementation Method 1
the detection module is configured to detect a vibration signal of the bone conduction sound transmitting organ
Data Source
AI summary
A pickup is provided. The pickup is configured to be mounted to a bone conduction organ in the mouth, the pickup includes a detection module, and the detection module is configured to detect a vibration signal of the bone conduction organ. A communication device and a communication apparatus are also provided. The communication device includes a signal receiving module, a control module, and a communication module.