Hearing Aid Proximity Sensor Automatic Mode Switching

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Hearing aids face challenges with manual switches that require user intervention, leading to battery depletion and exposure to contaminants, while software-based solutions strain processors and unnecessarily deplete batteries. Additionally, current designs require separate casings for each ear, increasing manufacturing costs and user complexity.

Innovation Solution

A hearing aid with proximity sensors that automatically detect ear attachment and mode changes, allowing for interchangeable use between ears and reducing the need for manual switches, thereby conserving battery life and enhancing reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual switches are used to change states and modes, then the hearing aid can be controlled to turn on/off and change modes, but the user must remember to turn off the hearing aid at night, leading to battery charge losses of up to 50% of total battery life

Engineering Contradiction:

ImproveManual control capabilityVSAvoidBattery charge loss

Core Design Contradiction:

Ease of operationVSLoss of energy

Solution Approach 1:

The hearing aid automatically detects when it is not being worn using sensors (accelerometer, proximity sensors, microphone activity detection) and autonomously transitions to sleep mode or turns off, eliminating the need for user intervention to conserve battery power

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system continuously monitors environmental conditions (sound levels, motion, proximity to ear) and uses this feedback to automatically adjust its state, transitioning between active, standby, and sleep modes based on detected conditions

Inventive Principle:

Principle #23Feedback

2Ease of operation

If manual switches are used, then the hearing aid can be controlled, but the mechanical switch exposes internal circuitry to contaminants such as water and provides a point of potential failure

Engineering Contradiction:

ImproveManual switching capabilityVSAvoidSwitch durability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces mechanical switches with electronic sensors and software-based control systems that detect user presence and environmental conditions, eliminating mechanical moving parts that can fail or be contaminated by water and other elements

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The hearing aid uses sensors to automatically detect when it is being worn or removed, and autonomously changes its state without requiring any mechanical interaction from the user, eliminating the need for exposed switches

Inventive Principle:

Principle #25Self-service

3Extent of automation

If software algorithms monitor sound conditions to change modes, then the hearing aid can automatically adapt to environmental noise, but this requires substantial programming, generates additional strain and wear on the processor and microphone, and requires a large portion of the circuitry to remain on during off/sleep mode, unnecessarily depleting the battery

Engineering Contradiction:

ImproveAutomatic mode change capabilityVSAvoidProcessor and microphone strain

Core Design Contradiction:

Extent of automationVSUse of energy by moving object

Solution Approach 1:

The system divides functionality into separate low-power sensor modules (accelerometer, proximity sensors) that can operate independently in sleep mode, allowing the main processor to remain dormant while basic detection functions continue with minimal power consumption

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The hearing aid uses periodic sampling of environmental conditions by low-power sensors rather than continuous monitoring, activating full processing only when changes are detected that warrant mode transitions

Inventive Principle:

Principle #19Periodic action

4Adaptability or versatility

If separate casings are designed for each ear, then the hearing aid can be optimized for specific ear placement, but manufacturing costs increase and user complexity increases

Engineering Contradiction:

ImproveEar-specific optimizationVSAvoidManufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The hearing aid is designed with symmetrical features and interchangeable components (ear hooks, vents, microphones) that allow a single casing design to be worn on either ear, eliminating the need to manufacture separate left and right versions while maintaining proper functionality

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent uses asymmetric internal component placement combined with reversible external features, allowing the same casing to be configured for either ear through simple reconfiguration rather than requiring entirely different designs

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS10631104B2Listening device with automatic mode change capabilities

Publication Date: 2020.04.21 III HOLDINGS 4 LLC

AI summary

A hearing aid includes a casing configured to fit behind an ear of a user's head and against a side of the user's head. The hearing aid further includes a first proximity sensor associated with the casing and configured to generate a first signal that is proportional to a proximity of the casing to the ear and includes a processor coupled to the first proximity sensor and configured to select an operating mode from a plurality of operating modes in response to the first signal.