Headset Audio Limiter and Failsafe Bypass for Clear Communication

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Solution Overview

Problem

Existing headset communication systems face challenges in providing clear and safe audio communication, particularly in managing peak sound levels and ensuring low distortion transmission without requiring external power sources.

Innovation Solution

The proposed communication system incorporates a hear-through limiter module to dynamically adjust sound levels and prevent unsafe peak values, and a low distortion transmission module with a failsafe bypass mechanism to ensure audio signal integrity even without external power. Additionally, the system includes a multichannel mixing passive PTT module for efficient audio signal processing and transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a hear-through limiter module is used to dynamically adjust sound levels and prevent unsafe peak values, then user safety and audio quality are improved, but device complexity increases

Engineering Contradiction:
Improveuser safetyVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The hear-through limiter module automatically monitors and adjusts audio signal peak levels without requiring external intervention or power. The module uses the existing audio signal power to operate the limiting function, making the system self-sufficient and avoiding additional power requirements while maintaining user safety.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The limiter dynamically changes the gain parameter of the audio signal in real-time based on detected peak levels. By adjusting the gain parameter adaptively, the system prevents unsafe peak values while maintaining normal audio transmission under typical conditions, thus improving safety without requiring complex constant intervention mechanisms.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If a low distortion transmission module with failsafe bypass mechanism is implemented, then audio signal integrity is improved, but device complexity increases

Engineering Contradiction:
Improveaudio signal integrityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The failsafe bypass mechanism is pre-configured in the low distortion transmission module to automatically activate when power failure or malfunction is detected. This prior cushioning approach ensures audio signal integrity is protected against potential failures without requiring complex real-time monitoring and intervention systems, as the bypass path is already prepared and can engage immediately.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The bypass mechanism acts as an intermediary path that can take over signal transmission when the main transmission path fails. This intermediary approach provides a simple backup route that maintains audio signal integrity without requiring complex control logic, as the bypass essentially provides an alternative parallel path for signal flow.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If the system operates without external power sources using only internal battery power, then ease of operation is improved, but energy consumption increases

Engineering Contradiction:
Improveease of operationVSAvoidenergy consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The system uses periodic transmission bursts rather than continuous transmission, allowing the battery-powered headset to operate in sleep modes between transmissions. This periodic action significantly reduces average energy consumption while maintaining full functionality when needed, enabling ease of operation without external power sources.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system dynamically adjusts its power consumption based on operational requirements, using higher power during active transmission and minimal power during idle periods. This dynamic power management allows the battery-powered system to provide adequate performance when needed while extending operational duration, thus improving ease of operation without requiring external power sources.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250167746A1Headset Communication System
Publication Date: 2025.05.22 GENTEX CORP
  • US20250167746A1 patent drawing
  • US20250167746A1 patent drawing
  • US20250167746A1 patent drawing

AI summary

A headset communication system with improved functionality. The headset communication system may include hear-through limiter functionality. The headset communication system may include failsafe functionality. The headset communication system may include multichannel, mixing, passive push-to-talk functionality. The headset communication system may include near field magnetic induction functionality.