Head-Worn Deflector Structure for Wind-Noise-Resistant Microphones
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Solution Overview
Problem
Wearable electronic devices experience significant wind noise during outdoor activities due to high airflow speeds at the microphone intake, which can mask voice content and deteriorate call quality.
Innovation Solution
A wearable device with a deflector structure that includes a concave section to redirect airflow, housing a microphone in a low-flow region to minimize wind noise impact, combined with sound conduction structures and microphones to enhance sound signal collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the microphone intake hole is exposed to external environment for sound collection, then sound signal collection capability is improved, but wind noise increases significantly during outdoor activities
Solution Approach 1:
The patent introduces a deflector structure as an intermediary element between the external environment and the microphone intake hole. This deflector redirects airflow to create a low-flow region that shields the microphone from direct wind exposure while still allowing sound signals to reach the microphone, thus reducing wind noise without compromising sound collection capability
Solution Approach 2:
The patent creates a localized low-flow region around the microphone intake hole through the deflector structure. This local modification of airflow characteristics allows the microphone to operate in a protected zone with reduced wind noise, while the rest of the device remains unaffected and maintains normal sound collection from the external environment
2Object-affected harmful factors
If a deflector structure is added to reduce wind noise, then wind noise reduction effect is improved, but device complexity increases
Solution Approach 1:
The deflector structure in the patent is designed as a thin, flexible component that can be integrated into the existing device housing. This approach minimizes the added complexity and bulk while still achieving the airflow redirection function necessary for wind noise reduction
Solution Approach 2:
The patent integrates the deflector structure with the existing device housing and microphone assembly, combining multiple functions into a unified design. The deflector is merged with the device shell to form an integrated low-flow region, reducing the need for separate components and simplifying the overall structure
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 deflector structure significantly reduces wind noise, improving sound signal quality and user experience by creating a stable low-flow region for the microphone, allowing for effective voice capture and subsequent processing.
Implementation Method 1
a deflector structure configured to be worn on a head of a user, wherein the deflector structure may include: a first connecting section, a second connecting section, and a concave section... the concave section having a downward depression region relative to the deflector structure
Data Source
AI summary
The present disclosure provides a wearable device, the wearable device comprising a deflector structure configured to be worn on a head of a user, wherein the deflector structure may include a first connecting section, a second connecting section, and a concave section. The first connecting section, the concave section, and the second connecting section may be connected in sequence. The concave section has a downward depression relative to the deflector structure. A first microphone may be configured to collect a sound signal, the first microphone may be located at the concave section.