Hearing Aid Wireless Diagnostic Test Mode
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Solution Overview
Problem
Existing wireless communication systems for hearing assistance devices, particularly those using Bluetooth Low Energy (BLE) technology, face challenges in managing interference and maintaining link quality in noisy environments due to limited power and inadequate filtering, leading to reduced battery life and communication efficiency.
Innovation Solution
A system comprising a BLE tester and a hearing aid that uses a wireless test mode for diagnostic analysis to assess link quality and adjust communication parameters, such as power levels and channel frequencies, to improve data transmission and reduce interference, incorporating features like adaptive frequency hopping and diverse antenna systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If spread spectrum systems are used to mitigate interference, then interference resistance is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent changes the fundamental parameter of communication approach by switching from spread spectrum techniques to narrowband frequency hopping. This involves changing the bandwidth utilization parameter and the frequency selection mechanism, thereby achieving interference mitigation without the complexity of spread spectrum processing
2Object-affected harmful factors
If spread spectrum systems are used to mitigate interference, then interference resistance is improved, but power consumption increases
Solution Approach 1:
The patent changes the power consumption parameter by eliminating the need for complex spread spectrum signal processing. The frequency hopping implementation uses simpler modulation and demodulation techniques that consume less power while achieving comparable interference resistance through rapid frequency switching
3Use of energy by moving object
If hearing aid transmits using low power in unlicensed band, then device portability and battery life are improved, but communication reliability deteriorates due to interference
Solution Approach 1:
The patent applies dynamics by implementing adaptive frequency hopping where the hearing aid dynamically switches between frequencies based on interference conditions. This dynamic frequency selection allows the system to maintain reliable communication at low power by continuously adapting to the changing wireless environment and avoiding interfered channels
4Reliability
If adjacent channel filtering is increased to reduce interference, then communication quality is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent uses dynamic frequency hopping to avoid the need for complex fixed filtering. By rapidly switching frequencies based on interference detection, the system achieves high communication quality without requiring sophisticated adjacent channel rejection filters, thereby reducing device complexity
Data Source
AI summary
Various system embodiments comprise a plurality of devices configured to wirelessly communicate with each other. The plurality of devices includes a battery-operated hearing aid configured to communicate with another device using Bluetooth Low Energy (BLE) wireless communication technology. A BLE tester is configured to test the hearing aid for the performance of BLE wireless communication via a wireless link. One embodiment uses a wireless test mode as a diagnostic tool for analyzing the wireless communication environment, such as when the communication with the hearing aid is interfered in a noisy environment.