Stereo Microphone Speaker With Frequency Division And Silicone Support

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Solution Overview

Problem

Current microphone speakers have poor sound quality, lack stereo perception, and are prone to howling when volume is increased, leading to a harsh user experience due to complex structures and high costs.

Innovation Solution

A stereo microphone speaker design featuring Printed circuit boards with audio frequency dividing modules, tweeters, and subwoofers, along with silicone microphone supports and protective head covers, which improve sound quality, reduce howling, and simplify structure for portability and affordability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If current microphone speakers use common appearance design and simple structures, then production costs are low, but sound quality is poor and stereo perception is lacking

Engineering Contradiction:
Improveproduction costVSAvoidsound quality
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The audio frequency dividing module separates audio signals into different frequency bands (high, mid, low frequencies) and directs them to corresponding speakers (tweeters, mid-range speakers, subwoofers). This segmentation allows each speaker to handle specific frequency ranges, significantly improving sound quality and stereo perception while maintaining a simple overall structure that is easy to manufacture.

Inventive Principle:
Principle #1Segmentation

2Power

If volume is turned up on current microphone speakers, then audio output increases, but howling and harsh sounds occur

Engineering Contradiction:
Improveaudio outputVSAvoidhowling sound
Core Design Contradiction:
PowerVSObject-generated harmful factors

Solution Approach 1:

Different types of speakers (tweeters, mid-range speakers, subwoofers) are used to handle different frequency ranges. This local quality differentiation ensures that each frequency band is processed by the appropriate speaker, preventing frequency interference and howling sounds even at high volume levels, while maintaining high audio output power.

Inventive Principle:
Principle #3Local quality

3Reliability

If microphone speakers use complex structures to improve sound quality, then stereo perception improves, but device complexity and price increase

Engineering Contradiction:
Improvestereo perceptionVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple speaker units (tweeters, mid-range speakers, subwoofers) and the audio frequency dividing module are integrated into a single compact housing. This merging approach achieves professional-grade stereo perception and sound quality while maintaining a simple, portable device structure that is easy to manufacture and affordable.

Inventive Principle:
Principle #5Merging (Combining)

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 design enhances user experience with improved sound quality, reduced harsh sounds at higher volumes, and lower production costs, making it more competitive in the market with a compact and durable form.

Implementation Method 1

a transducer for sonic-electric transformation, by sound waves applied to electroacoustic components to generate voltage, which is then converted into electrical energy

Methodology Applied
Scientific EffectElectroacoustic transformation:

Implementation Method 2

interiors of the handle front covers relative to interior sides of tweeter holes are fixedly connected with tweeter mounting cavities, interiors of the tweeter mounting cavities are provided with tweeters; interior sides of the handle rear covers are provided with subwoofer mounting cavities, and interiors of the subwoofer mounting cavities are provided with subwoofers

Methodology Applied
Scientific EffectElectroacoustic conversion:

Data Source

PatentUS11463812B1Stereo microphone speaker
Publication Date: 2022.10.04 SHENZHEN HUA SIRUI TECH CO LTD
  • US11463812B1 patent drawing
  • US11463812B1 patent drawing
  • US11463812B1 patent drawing

AI summary

A stereo microphone speaker includes a Printed circuit board, a middle housing, and a handle body. An audio frequency dividing module and an audio playback module are arranged at end surfaces of the Printed circuit board. The handle body includes a handle rear cover and a handle front cover, and an interior of the handle front cover is fixedly connected with a tweeter mounting cavity. An interior of the tweeter mounting cavity is provided with a tweeter. An interior of the handle rear cover defines a subwoofer mounting cavity. An interior of the subwoofer mounting cavity defines a subwoofer, and an upper end of the middle housing defines a silicone microphone installation fixing groove. A silicone microphone support is provided inside the silicone microphone installation fixing groove, and an interior of an upper end of the silicone microphone support is provided with a microphone.