Equalized Hearing Aid System With Bluetooth Frequency Control
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Solution Overview
Problem
Conventional hearing aids often produce unnatural sound quality due to fixed frequency shifting approaches that do not account for user preferences or environmental variables, and lack adjustability for individual hearing needs.
Innovation Solution
A user-configurable hearing aid system incorporating multiple equalizers, Bluetooth connectivity, and a control interface that allows for flexible adjustment of audio frequency bands from various sources, enabling personalized sound amplification and natural sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency shifting is used to make speech more intelligible, then hearing loss correction is improved, but sound quality becomes unnatural
Solution Approach 1:
The patent applies parameter changes by using a configurable equalizer that adjusts frequency response parameters rather than fixed frequency shifting. The equalizer modifies the amplitude characteristics of different frequency bands independently, allowing natural sound quality to be preserved while improving speech intelligibility through targeted frequency enhancement.
2Reliability
If fixed frequency compression is applied at manufacture, then hearing correction is achieved, but adaptability to environmental variables is reduced
Solution Approach 1:
The patent implements dynamics by replacing fixed frequency compression with a dynamic equalizer system that can be adjusted in real-time. The equalizer receives control signals that allow users to modify frequency response characteristics based on environmental conditions and personal preferences, enabling adaptability while maintaining hearing correction.
Solution Approach 2:
The system changes parameters dynamically through user-configurable equalizer settings. Instead of fixed manufacturing parameters, the equalizer allows real-time adjustment of frequency response parameters via control interfaces, enabling adaptation to different environmental variables and user needs.
3Adaptability or versatility
If multiple audio channels are implemented, then audio flexibility is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by implementing a multi-functional equalizer system that handles multiple audio channels through a unified control architecture. The equalizer can process signals from various sources (microphone, Bluetooth devices, auxiliary inputs) and apply frequency correction across multiple channels using shared processing resources, reducing overall system complexity.
Data Source
AI summary
An equalized hearing aid system includes a microphone, a first equalizer, a first mixer, and a first speaker coupled in series forming a first signal path with a second mixer coupled to the first equalizer within the first signal path. The microphone, a second equalizer, a third mixer, and a second speaker are coupled in series forming a second signal path with a fourth mixer coupled to the second equalizer within the second signal path. A control interface may be coupled to at least one of the first equalizer and the second equalizer. A Bluetooth module may be coupled to at least one of the first equalizer and the second equalizer. A third equalizer may be coupled to input signal into the first signal path and a fourth equalizer may be coupled to input signal into the second signal path.