Smoking Substitute Device Voice Control and Security

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Solution Overview

Problem

Existing smoking substitute devices lack advanced user control and security features, limiting their functionality and raising concerns about unauthorized use and data privacy.

Innovation Solution

A smoking substitute device equipped with an audio interface and a natural language processing model that recognizes and analyzes spoken commands, enabling users to control the device using natural language and providing enhanced security features such as voice recognition and verification functions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If smoking substitute devices use basic control interfaces, then device complexity is reduced, but user control functionality and security features are limited

Engineering Contradiction:
Improveuser control functionalityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical control interfaces (buttons, switches) with voice-based acoustic control. The audio interface captures spoken commands, which are processed by processors to control device operations. This substitution enables sophisticated control functionality and security features without requiring complex physical interfaces, as voice commands can be recognized and executed through software processing rather than mechanical actuation.

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

2Reliability

If smoking substitute devices lack verification functions, then ease of operation is improved, but security against unauthorized use deteriorates

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

Solution Approach 1:

The patent implements preliminary verification by capturing and analyzing voiceprints before allowing device operation. The system stores voiceprint data during a registration phase and uses this stored data to verify user identity before permitting use. This preliminary action ensures security is established before operation begins, preventing unauthorized use while maintaining ease of operation for authorized users through automatic voice recognition rather than manual authentication steps.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If smoking substitute devices collect user data, then user experience is improved, but data privacy concerns increase

Engineering Contradiction:
Improveuser experienceVSAvoiddata privacy risks
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and processes only the essential voiceprint characteristics needed for authentication, separating this critical data from other potential user information. The system focuses specifically on capturing voice frequency, amplitude, and temporal patterns for verification purposes, while not necessarily collecting or storing broader user behavior data. This extraction approach minimizes data privacy risks by limiting data collection to what is strictly necessary for the core authentication function.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP4557277A1Smoking substitute device
Publication Date: 2025.05.21 IMPERIAL TOBACCO LTD
  • EP4557277A1 patent drawingFigure 1
  • EP4557277A1 patent drawingFigure 2(a)~2(c)
  • EP4557277A1 patent drawingFigure 3(a)~3(b)

AI summary

A smoking substitute device configured to generate an aerosol from an aerosol forming substrate, the device comprising an audio interface. The smoking substitute device is configured to perform a speech control function that includes: recognising words spoken by a user in an audio signal obtained by the audio interface; using a natural language processing model to analyse the recognised words spoken by the user; and controlling an operation of the smoking substitute device based on the analysis of the recognised words spoken by the user.