Hearing Aid Connector Detection Circuit Using Electrical Parameter Changes

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional connectors in small devices like hearing aids face challenges in detecting wired connections due to size constraints, power consumption, and mechanical failure, especially when using spring-based detection methods.

Innovation Solution

The implementation of a logic circuit with conductive electrodes and a magnetic component to detect changes in electrical parameters such as current, voltage, or capacitance, allowing for efficient detection of connector connections without the need for mechanical springs and reducing power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If spring-type detection is used to detect connector connection, then connection detection is achieved, but device size increases and mechanical failure risk increases

Engineering Contradiction:

Improveconnection detection reliabilityVSAvoiddetector volume

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The patent replaces the mechanical spring-based detection system with an electrical detection circuit. The circuit uses conductive elements and logic circuitry to detect connector connection through electrical parameter changes (such as capacitance or resistance changes) rather than mechanical spring compression. This substitution eliminates the need for moving mechanical parts while achieving reliable connection detection, directly resolving the contradiction between detection reliability and device volume.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If spring-type detection is used to detect connector connection, then connection detection is achieved, but insertion force requirement increases

Engineering Contradiction:

Improveconnection detection reliabilityVSAvoidinsertion force

Core Design Contradiction:

ReliabilityVSForce

Solution Approach 1:

The electrical detection circuit eliminates the need for mechanical spring compression during insertion. Instead of requiring force to compress a spring, the circuit passively detects connection through electrical parameter changes when the connector is plugged in. This reduces the insertion force requirement while maintaining reliable connection detection.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If powered device detection circuit is used to detect connector connection, then connection detection is achieved, but power consumption increases

Engineering Contradiction:

Improveconnection detection capabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The detection circuit operates periodically or on-demand rather than continuously. The logic circuit can be configured to activate detection only when needed (such as when a connector insertion is detected or when the device transitions to a low-power state), reducing overall power consumption while maintaining reliable connection detection capability when required.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The circuit detects connection through changes in electrical parameters (capacitance, resistance) that occur passively when a connector is connected, rather than requiring active power-consuming sensing mechanisms. This allows for low-power operation while maintaining reliable detection capability.

Inventive Principle:

Principle #35Parameter changes

4Reliability

If mechanical spring is used for connection detection, then connection detection is achieved, but device complexity increases

Engineering Contradiction:

Improveconnection detection reliabilityVSAvoidmechanical feature complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical spring mechanisms with simpler electrical circuitry. The detection circuit uses basic electrical components (conductive elements, logic gates, capacitors) that are easier to manufacture and integrate into small devices compared to precision mechanical springs. This substitution reduces device complexity while maintaining or improving detection reliability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 reliable and power-efficient detection of wired connections in small devices, allowing for mode switching and differentiation between different types of connectors, thereby optimizing operation and reducing mechanical failure risks.

Implementation Method 1

a logic circuit with conductive electrodes and a magnetic component to detect changes in electrical parameters such as current, voltage, or capacitance

Methodology Applied

Scientific EffectElectrical parameter detection: Capacitance

Implementation Method 2

a logic circuit with conductive electrodes and a magnetic component to detect changes in electrical parameters

Methodology Applied

Scientific EffectMagnetic detection: Magnetic Field

Data Source

PatentUS8582791B2Hearing aid and circuit for detecting a connector

Publication Date: 2013.11.12 III HOLDINGS 4 LLC

AI summary

A circuit for a hearing aid includes an interface including a contact element for receiving a connector. The interface is configured to provide produce an electrical signal when the connector contacts the contact element. The circuit further includes a logic circuit coupled to the interface for receiving the electrical signal and configured to detect the connector in response to receiving the electrical signal.