Multi-Mode Headset with DECT7 and Bluetooth for Signal Reliability
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Solution Overview
Problem
Existing communication headsets face challenges in maintaining signal quality and reliability in noisy environments, particularly in settings with heavy equipment or user movement, and lack adaptability to various communication scenarios while also failing to provide adequate hearing protection and multiple communication options.
Innovation Solution
A communications headset with DECT7 multichannel wireless communications, Bluetooth connectivity, audible 'listen through' capability, and USB reprogramming, featuring dual antennas, noise-cancelling microphones, and programmable sound dosimeters for improved signal reception and noise reduction, along with ruggedized earpieces for durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single communication channel is used, then device complexity is reduced, but signal reliability deteriorates due to blocking by heavy equipment or user movement
Solution Approach 1:
The patent divides the communication system into multiple independent channels including DECT7 multichannel wireless communications and Bluetooth communications. Each channel operates independently, so if one channel is blocked by heavy equipment or user movement, the other channels remain available for communication, thereby improving signal reliability without requiring a single complex redundant system.
Solution Approach 2:
The headset is designed with multi-functionality by integrating both DECT7 and Bluetooth communication capabilities into a single device. This allows the headset to universally operate across different communication protocols and environments, providing adaptability to various communication scenarios while maintaining manageable device complexity through unified hardware design.
2Object-affected harmful factors
If hearing protection is added to block noise, then hearing safety is improved, but communication clarity deteriorates due to noise isolation
Solution Approach 1:
The patent incorporates active noise cancellation technology that uses feedback mechanisms to detect ambient noise and generate anti-phase sound waves to cancel the noise. This allows the headset to maintain hearing protection while preserving communication clarity by dynamically adjusting noise cancellation based on real-time environmental conditions and speech detection.
Solution Approach 2:
The headset employs dynamic noise management that adjusts the level of noise blocking based on the communication context. During active communication, the system reduces noise isolation to maintain clarity, while during non-communication periods, it increases protection. This dynamic adjustment resolves the contradiction between hearing protection and communication clarity.
3Adaptability or versatility
If multiple communication modes are integrated, then adaptability to various environments is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple communication modes including DECT7 wireless communications, Bluetooth communications, and two-way radio connectivity into a single integrated headset platform. By combining these different communication technologies into one unified device with shared hardware resources and control systems, the patent achieves high adaptability to various communication environments while managing device complexity through consolidation rather than separate systems.
Data Source
AI summary
A communications headset having multiple modes of communication, including DECT7 wideband and narrow band, Bluetooth®, two-way radio connectivity, and USB connectivity. The system includes a DECT7 transceiver, a Bluetooth® transceiver, a microcontroller, and a digital signal processor (DSP), all connected on a bus. The DSP and a portion of the microcontroller can be reprogrammed via signals through the USB port or via signals from the Bluetooth® transceiver. The reprogramming signals originate from a computer that is temporarily linked to the headset via USB cable or Bluetooth®. The system provides listen-through capability, enabling face-to-face conversation while using DECT7 communications. The DECT7 communications have a noise gate that shuts off all noise when there is no voice signal present. The headset provides substantial hearing protection via passive and active noise cancellation and includes a sound pressure dosimeter.