Flavor Inhaler Power Supply Assembly for Electrode-Based Authentication

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Solution Overview

Problem

Existing non-combustion-type flavor inhalers lack effective user authentication and mode selection mechanisms beyond fingerprint authentication, necessitating a different approach to ensure secure operation and user authorization.

Innovation Solution

A power supply assembly with paired electrodes and a control circuit that detects a predetermined current direction during charging, allowing for user authentication and mode selection through conduction between specific electrodes, preventing unauthorized use and enabling secure operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If fingerprint authentication is used for user verification, then user authorization can be achieved, but the authentication mechanism is limited and lacks versatility

Engineering Contradiction:
Improveauthentication mechanismVSAvoiduser authorization
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The authentication mechanism is segmented into multiple independent electrode pairs, each capable of detecting conduction separately. This allows different authentication methods (fingerprint, conductive object, body contact) to be implemented through different electrode pairs, enhancing versatility while maintaining reliable authorization through the control circuit's ability to process multiple authentication types.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The electrode pairs are designed to serve multiple functions: they detect both fingerprint authentication and conductive object authentication, and can also detect body contact for mode selection. This multi-functionality resolves the contradiction by providing versatile authentication options while ensuring reliable user authorization through the control circuit's comprehensive verification capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple electrode pairs are added for different authentication methods, then authentication versatility improves, but device complexity increases

Engineering Contradiction:
Improveauthentication methodVSAvoidelectrode configuration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple electrode pairs are merged into a unified authentication system where the control circuit integrates processing for all electrode pairs. The first and second electrode pairs share common connection terminals with the control circuit, reducing overall system complexity while maintaining versatile authentication capabilities through shared infrastructure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The electrode pairs and control circuit are designed with universal functionality to handle multiple authentication methods through a single integrated system. This approach provides versatile authentication without proportionally increasing device complexity, as the same basic components serve multiple authentication purposes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If conduction detection between electrodes is used for authentication, then user verification can be achieved, but the system may be vulnerable to unauthorized conduction

Engineering Contradiction:
Improveuser verificationVSAvoidunauthorized conduction
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The control circuit is programmed with preliminary anti-action by detecting specific conduction patterns that indicate authorized users or objects. The system anticipates unauthorized conduction attempts and uses the predetermined current direction detection to distinguish between authorized and unauthorized conduction, preventing unauthorized access before it can cause harm.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The control circuit provides feedback by continuously monitoring the current direction between electrode pairs during charging and operation. This feedback mechanism allows the system to detect and respond to unauthorized conduction attempts in real-time, maintaining reliable user verification while preventing unauthorized access through active monitoring and response.

Inventive Principle:
Principle #23Feedback

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

The solution provides secure user authentication and mode selection, ensuring only authorized users can operate the device and switch between modes, enhancing security and usability.

Implementation Method 1

a control circuit that detects a predetermined current direction during charging, allowing for user authentication and mode selection through conduction between specific electrodes

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 2

a heater that vaporizes the liquid sent from the liquid storage; and a power supply that supplies power to the heater

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentEP3391760B1Power supply assembly, non-combustion-type flavor inhaler, non-combustion-type flavor inhalation system
Publication Date: 2021.02.03 JAPAN TOBACCO INC
  • EP3391760B1 patent drawingFigure 1
  • EP3391760B1 patent drawingFigure 2
  • EP3391760B1 patent drawingFigure 3

AI summary

A non-combustion-type flavor inhaler includes: an atomization assembly including an atomizer configured to atomize an aerosol source without combustion; and a power supply assembly including a power supply for supplying power to the atomizer. The power supply assembly includes: paired electrodes for electrical connection with the atomizer; and a first electrode and a second electrode electrically connected with the power supply. At least one of the first electrode and the second electrode is electrically connectable to a charger for charging the power supply. The non-combustion-type flavor inhaler is provided with a control circuit configured to detect a predetermined current in an opposite direction to a direction of a current flowing through the first electrode or the second electrode when the charger charges the power supply.