Compact Wireless Microphone Self-Supporting Audio Plug
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Solution Overview
Problem
Existing hands-free communication systems for vehicles are aesthetically unpleasing and require complex installation, with microphone placement affecting signal quality and feedback, leading to inconsistent performance.
Innovation Solution
A wireless microphone system with a self-supporting design that includes a housing with a transducer and wireless transmitter/receiver, plugging into a vehicle's audio unit, minimizing installation complexity and enhancing signal quality through a switchable audio adapter and connector system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the microphone is mounted to the vehicle interior surface with a wire, then the communication system can be implemented, but the appearance becomes unpleasing and installation becomes complex
Solution Approach 1:
The patent extracts the wire from the visible vehicle interior space by routing it through the headliner cavity and securing it with clips, effectively hiding the wire while maintaining electrical connection. This resolves the contradiction by removing the aesthetic drawback while preserving the communication function.
Solution Approach 2:
The microphone housing is designed to nest within the vehicle's existing headliner structure, with the housing fitting into a cavity and the wire routing nested within the headliner layers. This integration eliminates the need for external wire management and simplifies installation.
2Object-affected harmful factors
If the microphone is positioned remotely from the audio speaker, then feedback is minimized, but the signal-to-noise ratio may deteriorate
Solution Approach 1:
The patent implements feedback control by incorporating a feedback cancellation algorithm that actively monitors and subtracts speaker feedback from the microphone signal. This allows the system to maintain close microphone-speaker positioning for optimal signal-to-noise ratio while electronically eliminating feedback issues.
3Ease of operation
If the microphone housing is made compact and lightweight, then ease of installation is improved, but mechanical support capability may be reduced
Solution Approach 1:
The patent combines the microphone housing with an integrated mounting bracket and audio plug assembly, merging multiple functions into a single compact unit. The housing itself is designed with integrated attachment features that provide mechanical support without requiring separate mounting components, thus maintaining strength while minimizing size.
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 system provides a hands-free, aesthetically pleasing, and reliable communication solution by reducing installation complexity and improving signal quality, with a compact and lightweight design that supports itself within the vehicle's audio system.
Implementation Method 1
a transducer within the housing, the transducer being electrically connected to the transmitter
Data Source
AI summary
A wireless microphone for vehicles includes a housing, an audio plug extending from one end of the housing, a wireless transmitter within the housing, a transducer within the housing, the transducer being electrically connected to the transmitter, and a wireless receiver within the housing, the receiver being electrically connected to the plug, wherein the plug is configured to plug into an auxiliary input on a vehicle audio unit and thereby mechanically support the microphone.