Aerosol Unlocking Interface Using Light Signals and Button Timing

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Solution Overview

Problem

Existing aerosol-generating apparatuses lack effective security features to prevent unauthorized use and accidental activation, particularly in devices with locking functionalities.

Innovation Solution

Incorporating an illumination unit and a binary input device controlled by electrical circuitry to generate a sequence of unique light signals, requiring user interaction to unlock the apparatus, with the circuitry storing actuation requirements for each signal to ensure secure activation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a locking functionality is added to prevent unauthorized use, then security is improved, but device complexity increases

Engineering Contradiction:
ImprovesecurityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The illumination unit serves as an intermediary between the locking mechanism and the user. It provides visual feedback about the locked state and guides the user through the unlocking process, making the security feature more intuitive and easier to operate without adding complex interfaces

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces complex mechanical locking mechanisms with an electronic control system that uses light signals and simple button presses. The electrical circuitry controls the illumination unit to display different patterns (single light, double light, blinking) to indicate various states, substituting mechanical complexity with electronic control and visual feedback

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If a sequence of unique light signals is implemented, then security is improved, but ease of operation deteriorates

Engineering Contradiction:
ImprovesecurityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The illumination unit provides real-time visual feedback during the unlocking process. Different light patterns (single light, double light, blinking) indicate different stages or requirements, guiding the user through the sequence and confirming when the correct actions have been performed, thereby improving ease of operation despite the multi-step process

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system uses periodic light signals with different patterns (blinking, steady, double) to communicate with the user. These periodic actions create a rhythmic, predictable interface that helps users understand the unlocking sequence and maintain proper timing, making the operation more intuitive

Inventive Principle:
Principle #19Periodic action

3Adaptability or versatility

If existing apparatuses are retrofitted with unlocking functionality, then adaptability is improved, but device complexity increases

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The illumination unit, which may already exist in aerosol-generating apparatuses for other purposes (such as indicating power status or heating states), is repurposed to provide unlocking functionality. The same light-emitting components display different patterns to indicate locked state, guide unlocking sequences, and confirm successful unlocking, making the existing component multi-functional and avoiding additional hardware additions

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

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

Provides a high level of security and user-friendly operation by ensuring only authorized users can activate the device, while maintaining a limited component count and allowing retrofitting to existing apparatuses.

Implementation Method 1

an illumination unit configured to generate a plurality of light signals visible to a user

Methodology Applied
Scientific EffectLight emission: Light

Data Source

PatentEP4649844A1Aerosol-generating apparatus and methods relating to the same
Publication Date: 2025.11.19 IMPERIAL TOBACCO LTD
  • EP4649844A1 patent drawingFigure 1
  • EP4649844A1 patent drawingFigure 2~3b
  • EP4649844A1 patent drawingFigure 4~5

AI summary

This disclosure relates to an aerosol-generating apparatus (1) configured to generate an aerosol from a consumable (30, 70), comprising an illumination unit (100) configured to generate a plurality of light signals visible to a user of the aerosol-generating apparatus (1), an input device (55) configured for an actuation by the user from a rest position to an active position, and an electrical circuitry (12) configured to control the illumination unit (100) to generate a predetermined sequence of light signals, each light signal of the sequence differing from any other light signal of the sequence. The electrical circuitry (12) is configured to switch the aerosol-generating apparatus (1) between a locked state, in which the electrical circuitry (12) prevents a functionality of the aerosol-generating apparatus (1) from being activated, and an unlocked state, in which the electrical circuitry (12) allows activation of said functionality. The electrical circuitry (12) is configured to store an unlocking pattern which links each light signal of the sequence with an actuation requirement or a non-actuation requirement. The electrical circuitry (12) is configured to switch from the locked state to the unlocked state if the electrical circuitry (12) detects actuation of the input device (55) during the generation of each light signal of the sequence for which the actuation requirement is stored, and the electrical circuitry (12) detects no actuation of the of the input device (55) during the generation of each light signal of the sequence for which the non-actuation requirement is stored.