Adaptive Multi-Band Hearing Device Frequency Switching
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Solution Overview
Problem
Existing hearing devices face connectivity issues, especially in dual connection scenarios and high-density environments, leading to degraded signal quality and increased complexity and cost due to the need for multiple radios.
Innovation Solution
A hearing device with a wireless communication unit and processing unit that dynamically switches between different frequency bands based on audio communication quality, allowing for improved connectivity, range performance, and easy upgrades by adapting the signal processing without additional hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple radios are used to improve connectivity and reliability, then audio communication reliability is improved, but device complexity and cost increase
Solution Approach 1:
The system dynamically switches between different frequency bands (2.4 GHz and 5 GHz) based on real-time audio communication quality detection. This dynamic adaptation allows a single radio to achieve reliability comparable to multiple fixed radios by flexibly responding to changing environmental conditions and interference levels.
Solution Approach 2:
The system changes the operating frequency band parameter based on detected audio communication quality. When quality falls below a threshold, the system switches from the current frequency band to an alternative band, thereby maintaining reliable communication without requiring multiple physical radios.
2Reliability
If multiple radios are used to ensure reliable audio communication, then connectivity is improved, but cost increases
Solution Approach 1:
A single radio is designed to operate across multiple frequency bands (both 2.4 GHz and 5 GHz), making it multi-functional. This universal radio can adapt to different wireless environments and maintain reliable connectivity without requiring separate dedicated radios for each frequency band, thereby reducing component costs.
Solution Approach 2:
The single radio dynamically selects and switches between frequency bands based on real-time quality detection, providing the reliability benefits of multiple radios while incurring the cost of only one radio component.
3Device complexity
If a single radio is used to reduce complexity and cost, then device simplicity is improved, but audio communication reliability deteriorates in high density environments
Solution Approach 1:
The system continuously monitors audio communication quality and uses this feedback to determine when to switch frequency bands. This closed-loop control enables a single radio to maintain reliability in high-density environments by detecting degradation and proactively switching to a less congested band.
Solution Approach 2:
The single radio transforms from a static, fixed-frequency device into a dynamic, multi-band capable system that adapts its operating parameters in real-time, achieving the reliability of multiple radios while maintaining the simplicity of a single device.
4Adaptability or versatility
If frequency band switching is implemented to improve connectivity, then adaptability is improved, but device complexity increases
Solution Approach 1:
The processing unit implements a relatively simple feedback mechanism that monitors audio communication quality and triggers frequency band switching when thresholds are exceeded. This feedback-based approach provides high adaptability while keeping the processing logic straightforward and manageable.
Solution Approach 2:
The frequency spectrum is segmented into distinct bands (2.4 GHz and 5 GHz), and the system switches between these predefined segments based on quality detection. This segmentation approach enables adaptability without requiring complex continuous spectrum management algorithms.
Data Source
AI summary
A hearing device configured for audio communication is disclosed. The hearing device comprises a wireless communication unit and a processing unit, the wireless communication unit being configured to receive and transmit audio signals. The processing unit is configured to receive and/or transmit the audio signal from/to the wireless communication unit, process the audio signal in a first frequency band or in a second frequency band, and detect the quality of the audio communication. If the audio signal is processed in the first frequency band, the processing unit is switching to processing in the second frequency band if the quality of the audio communication is below a first predetermined threshold. If the audio signal is processed in the second frequency band, the processing unit is switching to processing in the first frequency band if the quality of the audio communication is above the first predetermined threshold.