Aerosol generating device with smoke puff detection and method for detecting smoke puff

By monitoring and analyzing aerosol generation parameters to identify puffs and calculate puff volume, the device controls usage events for consistent aerosol quality and efficient substrate use, addressing inefficiencies in existing aerosol-generating devices.

JP7783838B2Active Publication Date: 2025-12-10PHILIP MORRIS PRODUCTS SA
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Patent Information

Application Number
JP2022579997
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-06-30
Filing Date
2021-06-30
Publication Date
2025-12-10
Estimated Expiration
2041-06-30

AI Technical Summary

Technical Problem

Existing aerosol-generating devices often determine the duration of a usage event based solely on time or the number of puffs, which can lead to inefficient use of aerosol-forming substrates and inconsistent aerosol quality due to varying user puffing techniques.

Method used

The device monitors parameters indicative of aerosol generation to identify individual puffs and calculates puff volume, using this data to control the operation and terminate the usage event based on cumulative aerosol volume, ensuring consistent aerosol quality and efficient substrate utilization.

Benefits of technology

This approach allows for precise control of aerosol generation, maintaining quality and optimizing substrate use by adjusting the usage event based on individual puffing habits, ensuring consistent taste and compliance with regulatory standards.

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Abstract

A method of operating an aerosol generating device is disclosed. The aerosol generating device includes a power supply for providing power to generate an aerosol and a controller. The method includes monitoring (202) a parameter indicative of aerosol generation during operation of the aerosol generating device and analyzing (204) the monitored parameter to identify a single user puff, defined by a puff start and an end. The monitored parameter is a power signal, and a puff is identified by comparing first and second moving averages of the power signal based on different time windows. The method may further include analyzing (205) the parameter monitored during the user's puff to calculate (206) a puff volume, which is the volume of aerosol generated during the user's puff, and using (207) the puff volume as a parameter for controlling operation of the device. Controlling operation of the device based on puff volume may provide an improved user experience for users who take puffs that are heavier or lighter than average.
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Citation Information

Patent Citations

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  • Flavor inhaler

    WO2017141358A1