Adaptive Antenna System for Hearing Aid Signal Stability
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Solution Overview
Problem
Hearing aids face challenges in maintaining stable wireless signal reception due to limited antenna options and spatial differences in radio wave polarization, which existing solutions fail to adequately address.
Innovation Solution
A hearing aid with an adaptive antenna system that includes a signal processor, wireless communications unit, and an antenna system with a data terminal and control terminal, featuring an antenna configurator that switches between different antenna modes based on signal quality parameters to optimize reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple differently oriented and polarized antennas are used to account for spatial differences in radio waves, then wireless signal reception stability is improved, but the device size and complexity increase
Solution Approach 1:
The patent implements an adaptive antenna system that dynamically switches between different antenna configurations (first and second antenna modes) based on received signal quality. The antenna configurator adjusts which antenna elements are active and how they are oriented, allowing the system to adapt to changing spatial conditions without requiring multiple permanently fixed antenna structures, thus improving reception stability while controlling complexity.
Solution Approach 2:
The system changes operational parameters of the antenna system by switching between different antenna modes with different orientations and polarizations. The antenna configurator modifies which antenna elements are connected and how they are configured based on signal quality measurements, enabling the system to optimize reception for different spatial conditions without physically changing the antenna structure.
2Reliability
If multiple differently oriented and polarized antennas are used to account for spatial differences, then signal reception across different user positions is improved, but the hearing aid size increases
Solution Approach 1:
The patent uses a dynamic antenna switching mechanism that allows a compact set of antenna elements to perform the function of multiple fixed antennas. By rapidly switching between different antenna configurations based on signal quality, the system achieves multi-directional reception capability within a small physical footprint, maintaining reception stability without increasing hearing aid size.
Solution Approach 2:
The antenna system is designed so that the same physical antenna elements can serve multiple functions by being configured in different modes. The first and second antenna modes allow the same hardware to handle different polarization and orientation requirements, eliminating the need for separate dedicated antennas for each spatial condition, thus maintaining compact size while achieving universal reception capability.
3Device complexity
If fixed antenna configurations are used, then device simplicity is maintained, but the ability to adapt to different signal polarizations and orientations is limited
Solution Approach 1:
The patent transforms a static antenna system into a dynamic one by introducing an antenna configurator that switches between different antenna modes based on real-time signal quality assessment. This dynamic capability allows the system to adapt to various signal polarizations and orientations while maintaining relatively simple hardware through intelligent switching, resolving the contradiction between simplicity and adaptability.
Solution Approach 2:
The system employs feedback mechanisms where the antenna configurator continuously monitors signal quality parameters and uses this information to determine the optimal antenna mode. This closed-loop control enables the antenna system to automatically adapt to changing signal conditions without complex manual configuration, achieving high adaptability with minimal user intervention while keeping the control logic manageable.
Data Source
AI summary
A hearing aid includes: a signal processor; a wireless communications unit connected to the signal processor; and an antenna system with a data terminal and at least one control terminal, wherein the data terminal is connected to the wireless communications unit, the antenna system comprising a first antenna and one or more antenna feeds including a first antenna feed, the antenna system further comprising an antenna configurator for configuring the antenna system to operate in a selected antenna mode selected from a plurality of antenna modes including a first antenna mode and a second antenna mode according to a control signal transmitted on the at least one control terminal, wherein the antenna configurator is configured to apply a first antenna configuration to the data terminal when operating in the first antenna mode, and to apply a second antenna configuration to the data terminal when operating in the second antenna mode.