Binaural Hearing Aid Mounting Detection Using Acceleration Correlation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hearing devices struggle to ensure both the earmold and the behind-the-ear (BTE) part are correctly mounted, which is crucial for optimal hearing loss compensation and noise reduction.
Innovation Solution
A binaural hearing aid system with acceleration sensors in each hearing instrument to measure acceleration in multiple directions, allowing for the comparison of movement patterns and using correlation measures to determine correct mounting, potentially aided by a neural network for improved accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If acceleration sensors and correlation measures are added to detect correct mounting, then mounting detection accuracy is improved, but device complexity increases
Solution Approach 1:
The patent uses acceleration sensors as intermediary devices that indirectly detect mounting status by measuring movement patterns and comparing them through correlation analysis, rather than directly sensing mounting position. This intermediary approach enables accurate detection while keeping the core hearing aid functionality intact.
Solution Approach 2:
The patent replaces complex mechanical mounting verification mechanisms with electronic acceleration sensing and computational correlation analysis. This substitution uses software-based pattern recognition instead of mechanical switches or physical alignment mechanisms, reducing mechanical complexity while improving detection accuracy.
2Reliability
If processing parameters are adjusted based on mounting detection, then hearing aid performance is improved, but computational requirements increase
Solution Approach 1:
The patent applies partial processing by only adjusting hearing aid parameters when correct mounting is detected through correlation analysis. Instead of continuous full processing, the system performs computational adjustments conditionally, reducing overall power consumption while maintaining performance when needed.
Solution Approach 2:
The patent dynamically changes processing parameters based on mounting detection results. When correct mounting is confirmed through acceleration pattern correlation, the system activates optimized processing modes; otherwise, it uses reduced processing modes, thereby adapting computational requirements to actual usage conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures accurate detection of correct mounting, enabling optimal hearing aid performance by adjusting processing parameters and providing user warnings or disabling features if improperly mounted.
Implementation Method 1
an acceleration sensor configured to measure acceleration in at least two directions relative to the housing of the BTE-part
Data Source
AI summary
A binaural hearing aid system comprises left and right hearing instruments each comprising a BTE-part comprising a housing configured to be located at or behind an outer ear of the user and an acceleration sensor configured to measure acceleration in at least two directions relative to the housing of the BTE-part and to provide acceleration data indicative thereof. A first one of the left and right hearing instruments comprises a transmitter configured to transmit said acceleration data to the other hearing instrument, and the other hearing instrument comprises a receiver for receiving said acceleration data from the first one of the hearing instruments. The other hearing instrument further comprises a controller for detecting whether or not the left and right hearing instruments are correctly mounted in dependence of a similarity measure between said acceleration data provided by the left and right hearing instruments. A method of operating a binaural hearing aid system is further disclosed.