Earbuds Cradle Sound Reflection Deformation for Ear Tip Size Identification
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Solution Overview
Problem
Existing earbud cradles lack an effective method to identify the appropriate size of ear tips for optimal sound reflection and correct wearing, leading to suboptimal audio experience due to varying ear shapes and sizes among users.
Innovation Solution
Incorporating a sound reflection deformation portion in the earbud cradle's accommodating grooves, which emits sound and reflects it back to a microphone for signal analysis, allowing for identification of ear tip size and correct wearing status, and adjusting the equalizer settings accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a flat bottom is used in the earbud accommodating groove, then the manufacturing is simple, but the accuracy of ear tip size identification is insufficient
Solution Approach 1:
The patent applies curvature by introducing a sound reflection deformation portion with a curved surface (concave or convex) at the bottom of the earbud accommodating groove. This curved structure modifies the sound reflection pattern to enhance the acoustic signature differences between various ear tip sizes, thereby improving identification accuracy without significantly complicating the overall cradle structure.
Solution Approach 2:
The patent changes the physical parameter of the groove bottom from flat to deformed (concave/convex), altering the acoustic characteristics of the space. This parameter change creates distinct sound reflection patterns for different ear tip sizes, enabling more accurate identification while maintaining a relatively simple structural implementation.
2Difficulty of detecting and measuring
If no sound reflection deformation portion is provided, then the device complexity is low, but the ability to detect correct wearing and ear tip size is insufficient
Solution Approach 1:
The sound reflection deformation portion acts as an intermediary element that facilitates the detection process. By modifying the acoustic environment within the groove, it creates enhanced sound reflection patterns that enable the system to distinguish between different ear tip sizes and wearing conditions, effectively serving as a mediator between the physical ear tip and the detection system.
Solution Approach 2:
The patent utilizes acoustic vibrations (sound waves) interacting with the deformed surface to create distinct vibration patterns and reflection characteristics. These mechanical vibrations in the acoustic field provide the basis for detecting ear tip size and wearing status, transforming a static structural problem into a dynamic acoustic measurement problem.
3Measurement precision
If a sound reflection deformation portion is added, then the accuracy of wearing detection is improved, but the manufacturing complexity increases
Solution Approach 1:
The curved sound reflection deformation portion can be integrated into the molding process of the cradle, allowing for relatively straightforward manufacturing using conventional injection molding or similar techniques. The curvature is designed to be simple enough to be formed in a single molding operation, minimizing additional manufacturing steps while achieving the desired acoustic effect.
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
This solution enhances the accuracy of ear tip size identification and correct wearing detection, improving audio quality by tailoring sound settings to the user's ear anatomy, ensuring a better fit and audio experience.
Implementation Method 1
reflecting the sound by a sound reflection deformation portion of the earbuds cradle
Data Source
AI summary
An earbuds cradle includes a body, a pair of earbud accommodating grooves provided on a upper surface of the body, a sound reflection deformation portion provided on a bottom of each of the pair of earbud accommodating grooves: and a lid disposed on the body to cover a pair of earbuds.