Microphone Coupler Isolating Signal Interference
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Solution Overview
Problem
In portable communication devices, space constraints and signal interference pose challenges in locating microphones effectively, often requiring them to be placed far from the device's microphone port, leading to potential interference and signal degradation.
Innovation Solution
A microphone coupler is designed to create a spaced relationship between the microphone and the device's housing, using a body section and conduit to form an air channel, which includes a RF shield to isolate the microphone from interfering signals and a support member for stability, allowing the microphone to be positioned further away from interfering components while maintaining signal integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the microphone is placed far from the microphone port in the housing, then signal interference from other devices is reduced, but the air channel length increases causing signal strength loss
Solution Approach 1:
A coupler assembly acts as an intermediary component between the microphone and the microphone port. The coupler includes a body portion that receives the microphone and a conduit that provides an air channel to the port, isolating the microphone from interfering devices while maintaining a controlled acoustic path. This mediator structure allows the microphone to be positioned away from interfering components without excessive signal loss.
Solution Approach 2:
The acoustic path is segmented into distinct sections: the body portion housing the microphone and the conduit extending to the port. This segmentation allows independent optimization of each section - the body can be positioned for optimal isolation from interference, while the conduit provides a dedicated, controlled air channel that minimizes signal strength loss despite the increased distance.
2Object-affected harmful factors
If the microphone is positioned away from the microphone port, then isolation from interfering devices is improved, but the device complexity increases due to additional coupling components
Solution Approach 1:
The coupler assembly merges multiple functions into a single integrated component: it provides structural support for the microphone, creates the acoustic isolation environment, and forms the air channel to the microphone port. The body portion and conduit are connected as a unified structure, reducing the number of separate components needed and simplifying assembly while achieving effective isolation from interfering devices.
Data Source
AI summary
The invention provides a microphone coupler for a microphone located within a housing of a portable communication device and a device incorporating the coupler. The coupler comprises a body section and a conduit or just a conduit. The body section is shaped to fit around the microphone and is defined by one or more walls and within the walls an interior cavity is defined. One wall has a port in through connecting to the cavity. The cavity can receive at least a portion of the microphone and provides a space between the microphone and the body section. The conduit has an internal channel, a distal end, a proximate end and openings at each end connecting to the channel. For the conduit, the proximate end is connected to the body section and the second opening mates with the port.