Smart Glasses Speaker Module With Adjustable Sound Elimination Directivity
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Solution Overview
Problem
The sound producing modules in existing smart glasses lack the ability to adaptively adjust sound eliminating directivity, posing privacy risks.
Innovation Solution
A sound producing module with a movable sound relief hole and a housing structure that allows the position of the sound relief hole relative to the sound outlet to change, enabling adaptive sound eliminating directivity through the principle of wave interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the sound producing module uses a fixed structure, then the structure is simple and easy to manufacture, but the sound eliminating directivity cannot be adjusted adaptively
Solution Approach 1:
The patent applies the dynamics principle by making the sound relief hole movable relative to the sound outlet. The moving plate can change its position to adjust the relative position between the sound relief hole and sound outlet, enabling adaptive sound eliminating directivity. This transforms a static structure into a dynamic one that can adapt to different environments and crowd positions.
Solution Approach 2:
The patent segments the housing into a movable plate and a fixed housing body. The moving plate contains the sound relief hole and can independently move relative to the housing body, allowing the sound producing module to adjust its sound eliminating directivity without redesigning the entire structure. This segmentation enables localized adjustment while maintaining overall structural simplicity.
2Reliability
If the sound relief hole position is fixed, then the manufacturing precision requirement is low, but the privacy protection capability is insufficient
Solution Approach 1:
By making the sound relief hole position adjustable through the moving plate, the system can dynamically optimize privacy protection for different scenarios. The moving plate can be controlled to position the sound relief hole at different locations relative to the sound outlet, adapting to various crowd positions and environments, thereby enhancing privacy protection capability.
Solution Approach 2:
The patent changes the positional parameter of the sound relief hole by allowing the moving plate to move. This parameter change enables the sound producing module to adjust its sound eliminating directivity pattern, improving privacy protection. The moving mechanism allows continuous or discrete adjustment of the relative position between sound relief hole and sound outlet.
3Adaptability or versatility
If the moving plate is made flexible, then the movement range is increased, but the structural strength decreases
Solution Approach 1:
The patent employs a flexible plate design for the moving plate, which can bend and move to a greater extent compared to rigid plates. This flexibility allows the sound relief hole to achieve a wider range of positions relative to the sound outlet, enhancing adaptability. The flexible material maintains sufficient structural integrity while enabling increased movement range.
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
Enables adaptive sound eliminating directivity to protect user privacy by adjusting sound eliminating areas based on the positions of surrounding crowds.
Implementation Method 1
enabling adaptive sound eliminating directivity through the principle of wave interference
Data Source
AI summary
Disclosed include a sound producing module, a sound eliminating method therefor, and smart glasses, wherein the sound producing module includes a housing and a sound producing unit. The housing includes a moving plate and a housing body having an accommodating cavity, the housing body is provided with a sound outlet opened thereon, and the moving plate is provided with a sound relief hole opened thereon. The sound producing unit is provided within the accommodating cavity, and separates the accommodating cavity into a front cavity in communication with the sound outlet and a rear cavity in communication with the sound relief hole. The moving plate is adapted to move relative to the housing body to change the position of the sound relief hole relative to the sound outlet.