Removable Amplifier Unit for Face Mask Voice Clarity

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Solution Overview

Problem

Face masks with sound processing capabilities are needed to enhance communication in environments where viral pandemics require mask usage, as existing masks hinder hearing and speaking due to muffled voices and hidden lip movements.

Innovation Solution

A multi-purpose protective mask with a removable amplifier unit containing a micro-processor, rechargeable battery, Bluetooth device, microphone, and speaker unit, which processes voice data and amplifies sound for clearer communication while maintaining protection from airborne pathogens.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a protective face mask is worn to protect from airborne pathogens, then protection against viruses is improved, but communication quality deteriorates due to muffled voices and hidden lip movements

Engineering Contradiction:
Improveprotection against virusesVSAvoidcommunication quality
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The patent introduces an intermediary communication system consisting of a microphone, amplifier, and speaker that mediates between the masked user's voice and the listener's ear. The microphone captures voice through the mask material, the amplifier boosts the signal, and the speaker reproduces it clearly, thus preserving communication quality while maintaining mask protection.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the natural mechanical acoustic transmission (voice waves traveling through air directly to the ear) with an electronic system. The voice signal is converted to electrical signals by the microphone, processed electronically through the amplifier, and converted back to acoustic waves by the speaker, bypassing the muffling effect of the mask material.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Loss of information

If the mask is pulled down to speak clearly, then communication quality is improved, but protection against pathogens deteriorates

Engineering Contradiction:
Improvecommunication qualityVSAvoidprotection against pathogens
Core Design Contradiction:
Loss of informationVSReliability

Solution Approach 1:

The communication device acts as an intermediary that enables clear speech without removing or adjusting the mask. The microphone captures voice through the mask material itself, eliminating the need to pull the mask down, thus maintaining continuous protection while achieving clear communication.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary voice capture through the mask material using the microphone positioned to pick up sound through the fabric. This preliminary capture allows the voice to be amplified before transmission, preventing the need for subsequent mask adjustment and maintaining continuous protection.

Inventive Principle:
Principle #10Preliminary action

3Loss of information

If voice amplification is added to the mask, then communication quality is improved, but device complexity increases

Engineering Contradiction:
Improvecommunication qualityVSAvoidmask structure
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The mask is designed with multi-functionality by integrating communication capabilities into the protective structure. The same mask material serves both as a protective barrier and as a medium through which the microphone can capture voice. The amplifier unit is designed to be universally compatible with standard mask structures.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The communication system is segmented into separate functional modules (microphone, amplifier, speaker) that can be independently positioned and optimized. The amplifier unit is designed as a separate component that attaches to the mask, allowing the protective mask structure and the electronic communication components to be developed and optimized independently.

Inventive Principle:
Principle #1Segmentation

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 clearer inbound and outbound communication by amplifying user voices and translating languages, with adjustable volume and emergency response features, facilitating effective communication in public settings without compromising mask functionality.

Implementation Method 1

a rechargeable battery coupled to the micro-processor

Methodology Applied
Scientific EffectBattery (electricity): Battery (electricity)

Implementation Method 2

a microphone coupled to the micro-processor and configured to provide the voice data to the micro-processor

Methodology Applied
Scientific EffectMicrophone transduction:

Implementation Method 3

a speaker unit configured to output the voice data processed by the micro-processor

Methodology Applied
Scientific EffectSpeaker transduction:

Data Source

PatentUS11423882B2Multi-purpose protective face mask
Publication Date: 2022.08.23 LACY ERIC
  • US11423882B2 patent drawing
  • US11423882B2 patent drawing
  • US11423882B2 patent drawing

AI summary

A protective face mask implemented with a pocket located on a front surface of the mask. A removable amplifier unit configured to be placed into the pocket, the removable amplifier unit comprising: a micro-processor configured to process voice data; a rechargeable battery coupled to the micro-processor; a Bluetooth device coupled to the micro-processor; a microphone coupled to the micro-processor and configured to provide the voice data to the micro-processor; and a speaker unit configured to output the voice data processed by the micro-processor.