Wireless Aviation Headset for 3D Audio Direction Finding
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Solution Overview
Problem
Existing aviation headsets lack the ability to provide power for functions like active noise reduction or Bluetooth, and wired connections complicate use, while also losing sound localization information due to reliance on mechanical vibrations.
Innovation Solution
A wireless aviation headset system that includes a processor, microphone, transceiver, and speaker, capable of receiving audio signals and determining the relative direction of the sound source, allowing for 3D audio reproduction without cables, and optionally using Bluetooth or UWB technology for direction finding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired connectors are used to provide power and audio, then reliable connection is achieved, but device complexity and ease of operation deteriorate due to cables and connectors
Solution Approach 1:
The patent extracts and removes the wired cable and connector components from the aviation headset system. The wireless headset eliminates the physical GA plug, Lemo plug, or Redel plug connections, replacing them with wireless communication protocols to provide audio and power transmission without physical cables.
Solution Approach 2:
The patent replaces the mechanical wired connection system with an electromagnetic wireless communication system. Instead of using physical connectors to transmit audio signals and power, the system uses wireless protocols (such as Bluetooth or proprietary wireless communication) to achieve the same functions without mechanical contact.
2Reliability
If wired connectors are used for audio transmission, then stable audio signal is achieved, but sound localization information is lost due to reliance on mechanical vibrations
Solution Approach 1:
The patent replaces the mechanical vibration-based audio transmission with an electromagnetic wireless transmission system. This substitution allows the preservation of sound localization information because the wireless system can transmit spatial and directional audio data without relying on mechanical vibrations that lose localization cues.
3Use of energy by moving object
If external battery pack is added to provide additional power, then power availability is improved, but device complexity and ease of operation worsen due to additional components
Solution Approach 1:
The patent merges the power supply function into the main headset body by integrating a rechargeable battery directly into the headset structure. This eliminates the need for a separate external battery pack and its associated inline connector, combining multiple functions (power storage, power management, and headset operation) into a single integrated unit.
Solution Approach 2:
The integrated battery system serves multiple functions: it provides power for the wireless communication transceiver, powers the active noise reduction system, charges mobile devices via USB connection, and eliminates the need for separate power packs. This multi-functional design reduces overall system complexity while improving power availability.
Data Source
AI summary
An aviation headset can include a microphone, a port configured to accept a cord for coupling with an audio panel, a transceiver, a speaker, and a processor coupled to the microphone, the port, the transceiver, and the speaker. The processor can be configured to receive an audio signal from the audio panel, determine a relative direction of a headset corresponding to the audio signal, and based on the relative direction, play the audio signal as three-dimensional (3D) audio through the speaker.