Hearing Aid Microphone Orientation Sensor Automation
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Solution Overview
Problem
Users of external directional microphones for hearing devices face frustration due to the need to constantly adjust the directional effect in fast-changing hearing situations, such as discussions involving multiple speakers, as they must manually switch between directional and omni-directional operations.
Innovation Solution
A microphone device with at least two microphones aligned in a straight line, equipped with a permanently connected orientation sensor that automatically adjusts the microphone operation based on the device's orientation, eliminating the need for manual switch activation by utilizing the intuitive alignment for control processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manual switch is used to adjust the directional effect, then the user can control the microphone operation, but the user becomes overwhelmed and irritated by the constant need to activate the switch in fast-changing hearing situations
Solution Approach 1:
The microphone device automatically detects its own orientation through the orientation sensor and switches between directional and omni-directional modes without requiring manual user intervention. The system serves itself by using the physical orientation of the device to automatically adjust its operational mode, eliminating the need for the user to manually operate switches.
Solution Approach 2:
The patent replaces the manual mechanical switch with an automated control system that uses an orientation sensor to detect the device's physical orientation and automatically controls the microphone operation. This substitution eliminates the need for manual mechanical interaction while maintaining the functionality of switching between operational modes.
2Adaptability or versatility
If the user manually switches between directional and omni-directional operation, then the microphone can adapt to different hearing situations, but the user is overwhelmed in fast-changing situations with multiple speakers
Solution Approach 1:
The orientation sensor continuously monitors the physical orientation of the microphone device and provides feedback to the control unit. Based on this feedback, the system automatically adjusts its operational mode (directional or omni-directional) to match the current hearing situation, enabling adaptive behavior without requiring manual user input.
Solution Approach 2:
The microphone device dynamically adjusts its operational characteristics based on its physical orientation in real-time. The system transitions between directional and omni-directional modes automatically as the device is moved or oriented differently in space, providing dynamic adaptation to changing acoustic environments without manual intervention.
3Extent of automation
If an orientation sensor is permanently connected to the microphone, then automatic orientation-based control is achieved, but the device complexity increases
Solution Approach 1:
The orientation sensor serves multiple functions: it detects the device's orientation for automatic mode switching, provides data for directional effect control, and can be used for positioning purposes. By making the sensor multi-functional, the patent reduces the need for additional separate components, thereby limiting the increase in overall device complexity while achieving automation.
Data Source
AI summary
A directional microphone for a hearing device should be easy for the user to operate. To this end it is equipped with an orientation sensor, such that it can be controlled as a function of orientation. It is for example possible in this manner to switch it to directional operation, when it is aligned horizontally. When it is aligned vertically, the directional microphone is for example switched automatically to omni-directional operation.