Wireless Beacon for Hearing Aid Acoustic Classification
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Solution Overview
Problem
Hearing assistance devices face challenges in accurately classifying acoustic environments, particularly in complex settings like vehicles, leading to frequent mode switching and reduced effectiveness due to high signal processing demands and potential errors.
Innovation Solution
A wireless beacon device that senses acoustic environments using sensors and transmits specific acoustic environment codes to hearing assistance devices, allowing them to adjust operational modes without complex signal processing, using a processor, memory, and wireless transmitter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If signal processing is used to classify acoustic environments in hearing assistance devices, then environment classification capability is improved, but device complexity and processing power requirements increase
Solution Approach 1:
The patent introduces an intermediary system consisting of external sensors (microphones, accelerometers, gyroscopes) and a processor that performs acoustic environment classification separately from the hearing assistance device. The classified environment information is then transmitted to the hearing assistance device, which only needs to receive and act on the classification results rather than performing complex signal processing itself.
2Measurement precision
If advanced signal processing is implemented in hearing assistance devices, then acoustic environment classification improves, but power consumption increases
Solution Approach 1:
The patent shifts the power-intensive signal processing and environment classification tasks to an external processor and sensor system, allowing the hearing assistance device to consume less power by only receiving pre-classified environment information through wireless communication.
3Speed
If hearing assistance devices attempt to rapidly adapt to changing acoustic environments, then responsiveness improves, but classification errors increase in complex environments
Solution Approach 1:
The patent segments the environment classification function from the hearing assistance device itself, placing it in a separate external system with dedicated sensors and processing capability. This allows the classification task to be performed with specialized algorithms that are more reliable in complex environments, while the hearing assistance device simply receives the results.
Solution Approach 2:
The patent uses multiple sensors (microphones, accelerometers, gyroscopes) to create multiple measurements of the acoustic environment, which are then processed to generate a comprehensive environment classification. This multi-sensor approach provides redundancy and improves reliability compared to single-sensor systems.
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
The beacon device enhances environment awareness for hearing assistance devices by accurately identifying acoustic environments and adjusting operational modes, improving user experience and reducing errors, especially in challenging settings like vehicles.
Implementation Method 1
a sensor to sense a signal related to determination of an acoustic environment
Implementation Method 2
a wireless transmitter in communication with the memory and an antenna coupled to the wireless transceiver to transmit information to the hearing assistance device
Data Source
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AI summary
A beacon device adapted to wirelessly communicate with a hearing assistance device, the beacon device comprising a sensor to sense a signal related to determination of an acoustic environment, a memory to store information relating to the signal, a processor in communication with the memory and the sensor, the processor adapted to process the information, a wireless transmitter in communication with the memory and an antenna coupled to the wireless transceiver to transmit information to the hearing assistance device.