Two-Way Communication System Using Bone Conduction and NFMI
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Solution Overview
Problem
Current communication systems for covert operations are not fully effective due to visible components and poor signal-to-noise ratios in loud environments, failing to provide clear two-way communication while maintaining situational awareness.
Innovation Solution
A two-way communication system with a mouthpiece component that uses bone conduction and integrated microphones, allowing users to hear their environment without obstruction, and an optional earpiece component for enhanced audio transmission and noise shielding, utilizing Near Field Magnetic Induction (NFMI) for wireless communication and encryption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional communication systems are used, then communication functionality is provided, but the components are visible and compromise covert operations
Solution Approach 1:
The communication system is divided into separate functional components: a mouthpiece component that contacts teeth for audio transmission, an optional earpiece component for receiving audio, and external infrastructure devices. This segmentation allows each component to be minimized in size and strategically positioned to reduce visibility while maintaining communication functionality.
Solution Approach 2:
The patent introduces intermediate components such as the mouthpiece that interfaces between the user and the communication system, and relay components that interface between the mouthpiece and infrastructure devices. These intermediaries allow the system to function with minimal visible elements, as the intermediaries can be concealed or minimized.
2Object-affected harmful factors
If hearing protection is used to block noise, then noise shielding is improved, but situational awareness is reduced
Solution Approach 1:
The earpiece component serves as an intermediary that selectively transmits audio signals to the user's ear while allowing the ear canal to remain open for natural sound passage. This enables noise shielding for specific frequencies or sources while maintaining situational awareness of ambient sounds.
Solution Approach 2:
The hearing protection is applied locally rather than globally - the earpiece provides noise shielding only where needed (in the ear canal) while leaving the rest of the auditory system open to environmental sounds. This localized approach allows simultaneous noise protection and situational awareness.
3Measurement precision
If the mouthpiece is secured tightly to ensure good audio contact, then audio transmission quality is improved, but comfort and ease of operation deteriorate
Solution Approach 1:
The mouthpiece component is designed with dynamic characteristics that allow it to adapt to the user's dentition and jaw movements. The component can flex or adjust its position to maintain optimal audio contact while accommodating natural movements, thereby maintaining audio quality without requiring excessive tightness that would reduce comfort.
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 clear and reliable two-way communication in various noise environments, including high noise situations, while being minimally visible and providing complete audio situational awareness without obstructing the user's hearing.
Implementation Method 1
An integrated antenna with one or more loop coils arranged (e.g., symmetrically or asymmetrically) within the housing
Implementation Method 2
A two-way communication system with a mouthpiece component that uses bone conduction
Data Source
AI summary
The two-way communication system comprises a non-invasive and non-implanted system which allows for clear two-way communications. This system is generally comprised of a mouthpiece component, relay component, infrastructure communication device, an optional earpiece component, and an optional system control which may interface with the relay component.