Hearing Aid Location via Periodic Tone and Directional Antenna
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Solution Overview
Problem
Miniaturization of hearing aids makes them difficult to locate, especially in environments with multiple similar devices, as they can be easily misplaced and challenging to distinguish from one another.
Innovation Solution
Incorporating a physically manipulable member that, when not manipulated for a selected period, triggers a higher decibel location tone, and using a control device with a directional antenna to receive and indicate the direction of a wireless signal for aiding in the hearing aid's location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If hearing aids are made smaller to be less intrusive and less visible, then user comfort and aesthetics are improved, but the hearing aids become more difficult to locate and more easily misplaced
Solution Approach 1:
The hearing aid emits location tones periodically when no input signal is detected for a predetermined time period. This periodic action allows the device to remain quiet during normal operation (maintaining small size benefits) while providing locatability when needed by transitioning to a second operating mode that emits audible location tones.
Solution Approach 2:
The hearing aid changes its operational parameters by switching between two modes: a first mode with low output for normal operation and a second mode with high output for location. The system transitions between these parameter states based on whether input signals are detected, resolving the contradiction between small size and locatability.
2Difficulty of detecting and measuring
If hearing aids operate continuously at high decibel level to improve locatability, then ease of location is improved, but battery life is reduced
Solution Approach 1:
Instead of continuous high-decibel operation, the system uses periodic location tones only when needed (when no input signal is detected). This periodic activation maintains locatability functionality while significantly reducing overall energy consumption compared to continuous operation.
Solution Approach 2:
The hearing aid dynamically adjusts its output level based on operational context. It operates quietly during normal use and activates high-decibel location tones only when required, creating a dynamic system that optimizes both locatability and battery life rather than maintaining a static high-power state.
3Difficulty of detecting and measuring
If location tones are emitted continuously to improve hearing aid location, then locatability is improved, but distinguishability from other hearing aids is reduced
Solution Approach 1:
The system emits location tones periodically rather than continuously, creating distinct temporal patterns that can help users distinguish between multiple hearing aids. The intermittent nature of the tones provides temporal information that enhances device distinguishability while maintaining locatability.
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
Enables effective localization of hearing aids by providing a distinct audible cue and visual indication of proximity and direction, reducing the effort required to find a misplaced device while conserving battery life through controlled tone delivery.
Implementation Method 1
a control device antenna configured to receive a wireless signal transmitted from a hearing aid antenna
Implementation Method 2
a receiver configured to output an audio signal indicative of a distance between the first antenna and the second antenna based on the wireless signal
Data Source
AI summary
A hearing aid includes electronics, a physically manipulable member, and a receiver. The receiver is configured to output sound in a first mode at a first decibel level and in a second mode at a second decibel level higher than the first decibel level. The first mode is based on an input from a microphone. The second mode is based on the physically manipulable member not having been manipulated over a selected period of time. In various examples, wireless approaches are used to perform location identification. Examples using antennas and radio frequency identification (RFID) are provided. Various location approaches are possible using different location tones and methods for generation of such tones. Other apparatus are provided for location identification in a system with one or more hearing aids.