Hearing Aid Accelerometer-Based Lost Device Detection

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing methods for locating lost hearing aids are inefficient as they often require playing sound signals that can potentially damage the user's hearing, and existing technologies are restricted from doing so due to safety concerns.

Innovation Solution

A method using an electronic device with a processor and interface circuitry to obtain accelerometer data from both the hearing aid and the device itself, determining an acceleration parameter to assess safety criteria, and generating control data to safely output auditory or visual cues to help locate the hearing aid without causing hearing damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Difficulty of detecting and measuring

If sound signals are played at high volume to locate the lost hearing aid, then the detectability and location efficiency is improved, but the user's hearing may be damaged

Engineering Contradiction:

Improvedetectability of lost hearing aidVSAvoidhearing damage to user

Core Design Contradiction:

Difficulty of detecting and measuringVSObject-affected harmful factors

Solution Approach 1:

The system dynamically adjusts the sound output based on real-time motion detection. When the hearing aid is detected as lost and the device is stationary, high-volume sound signals are enabled for improved detectability. When motion is detected, the system automatically reduces or stops sound output to prevent hearing damage, thus resolving the contradiction between detectability and hearing safety.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the sound volume parameter conditionally based on motion state. In the lost state with no motion detected, the sound volume is increased to maximum for effective location. When motion is detected, the volume parameter is reduced or set to zero, preventing hearing damage while maintaining the ability to locate the device when safe.

Inventive Principle:

Principle #35Parameter changes

2Difficulty of detecting and measuring

If the hearing aid plays sound signals continuously to improve location efficiency, then the detectability is improved, but energy consumption increases and hearing damage risk increases

Engineering Contradiction:

Improvelocation efficiencyVSAvoidenergy consumption

Core Design Contradiction:

Difficulty of detecting and measuringVSUse of energy by moving object

Solution Approach 1:

Instead of continuous sound playback, the system uses periodic sound signals triggered by motion detection events. Sound is played at high volume only when the hearing aid transitions to a lost state and remains stationary, creating periodic rather than continuous operation. This reduces energy consumption significantly while maintaining location efficiency when needed.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The sound playback is dynamically controlled based on real-time motion detection. The system transitions between silent/low-power state and active sound emission state based on whether the hearing aid is lost and stationary. This dynamic control optimizes energy usage by eliminating unnecessary continuous playback while ensuring sound is available when location is needed.

Inventive Principle:

Principle #15Dynamics

3Object-affected harmful factors

If motion detection is used to control sound output, then hearing safety is improved, but device complexity increases

Engineering Contradiction:

Improvehearing safetyVSAvoiddevice complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The system uses an intermediary motion detection mechanism (accelerometer or motion sensor) to mediate between the sound output and hearing safety. The motion sensor acts as a mediator that detects whether the device is stationary or moving, and this information controls the sound output accordingly. This intermediary approach provides a simple and reliable method to ensure hearing safety without requiring complex control systems.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

This method improves the detection and location of lost hearing aids while preventing hearing damage by safely outputting signals only when it is safe to do so, based on the acceleration parameter meeting specific criteria.

Implementation Method 1

obtaining first accelerometer data from a hearing aid; obtaining second accelerometer data from the electronic device

Methodology Applied

Scientific EffectAccelerometer: Accelerometer

Data Source

PatentEP4451709A1A hearing aid having acceleration based discoverability

Publication Date: 2024.10.23 OTICON

Figure 1
Figure 2
Figure 3A~3B

AI summary

Disclosed herein are methods for determining a location of a hearing aid, performed by an electronic device having a processor, a memory, and interface circuitry. The method includes obtaining first accelerometer data from a hearing aid. The method includes obtaining second accelerometer data from the electronic device. The method includes determining, based on the first accelerometer data and the second accelerometer data, an acceleration parameter indicative of a difference between the first accelerometer data and the second accelerometer data. In accordance with the acceleration parameter meeting a safety criterion, the method includes generating lost control data and outputting the lost control data to the hearing aid.