Ear-worn Hearing Aid Dual-Mode Configuration
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Solution Overview
Problem
Existing hearing aids, particularly over-the-counter devices, have limitations in adjusting features to meet the specific hearing needs of users, especially those with mild to moderate hearing loss, due to FDA regulations and lack of professional fitting.
Innovation Solution
The development of ear-worn devices that can be configured as both over-the-counter and prescription devices, allowing for adjustment of features such as volume, gain, and signal-to-noise ratio through a method involving processor commands and user input, with the option for professional fitting to unlock additional settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hearing aids are configured with limited feature ranges for over-the-counter use, then device accessibility and ease of operation are improved, but adaptability to individual hearing needs deteriorates
Solution Approach 1:
The system dynamically adjusts the range of adjustable settings based on user profile and fitting type. OTC users receive limited ranges for safety, while prescription users with professional fitting receive expanded ranges. This dynamic configuration allows the same device to serve both OTC and prescription markets effectively.
Solution Approach 2:
The patent implements different parameter ranges for different feature types based on OTC regulations. Volume, gain, and other audio parameters have restricted adjustment ranges for OTC devices, while prescription devices allow broader parameter exploration. This parameter differentiation resolves the contradiction between accessibility and adaptability.
2Adaptability or versatility
If hearing aids allow broad feature adjustment ranges, then adaptability to individual needs is improved, but safety and reliability deteriorate due to potential harmful output levels
Solution Approach 1:
The system implements FDA-compliant parameter ranges for OTC devices, restricting volume, gain, and other audio parameters to safe levels. These parameter constraints prevent harmful output while maintaining sufficient adaptability for mild to moderate hearing loss. Prescription devices can exceed these limits under professional supervision.
Solution Approach 2:
A professional fitting intermediary is introduced to bridge the gap between safety constraints and adaptability needs. The fitting process evaluates user requirements and configures parameters within safe ranges, allowing maximum adaptability without exposing users to harmful levels. This intermediary ensures safety while preserving customization capability.
3Ease of manufacture
If hearing aids are designed as over-the-counter devices with restricted settings, then ease of manufacture and compliance with regulations is improved, but device complexity increases to accommodate both OTC and prescription modes
Solution Approach 1:
The hearing aid device is designed with multi-functionality to operate in both OTC and prescription modes. The same hardware platform supports restricted OTC configurations and expanded prescription configurations, eliminating the need for separate device lines. This universality simplifies manufacturing while managing complexity through software-based configuration.
Solution Approach 2:
The device dynamically switches between OTC and prescription operational modes based on configuration data. A single device structure adapts its feature ranges and adjustment capabilities according to the selected mode, reducing manufacturing complexity compared to producing separate dedicated devices for each market segment.
4Adaptability or versatility
If hearing aids provide extensive customization options, then adaptability to individual hearing needs is improved, but ease of operation deteriorates due to complexity in adjusting multiple features
Solution Approach 1:
The system segments features into different categories with different levels of user access. Core features like volume have simple controls for all users, while advanced features like frequency-specific gain adjustments are restricted to prescription mode. This segmentation allows extensive customization capability while maintaining ease of operation for basic functions.
Solution Approach 2:
Different features have different levels of adjustability and complexity based on user needs and regulatory requirements. Volume control remains simple and accessible to all users, while sophisticated features like channel-specific processing are available only in prescription mode. This local differentiation of feature quality balances adaptability with ease of operation.
Data Source
AI summary
According to some embodiments, an ear-worn device, e.g., a hearing aid, is provided that operates both as an over-the-counter device, as well as a prescription device. Features stored on the ear-worn device may be used to amplify, enhance, de-noise, or otherwise process audio signals in a manner desired by the user. Some features, or settings of those features, process audio signals in a manner that is unsafe for users with mild-to-moderate hearing loss and thus are disabled when the ear-worn device is operating as an over-the-counter device. Such features and settings may be enabled after the ear-worn device is fit to the user by a licensed professional.