US 10,383,174 B2 · Electronic cigarette

Abstract

This electronic cigarette comprises: —a heating element able to vaporize a substrate during a smoking period; —means for measuring an approximation of a characteristic of the voltage across the terminals of the heating element during this smoking period, said approximation being measured across the terminals of a circuit no component of which exhibits intrinsic characteristics not disturbed by the inhalations; —means of estimating an approximation of said characteristic of the voltage across the terminals of the heating element in the absence of inhalation during said smoking period; means of calculating an intensity representative of the intensity of the inhalations during said smoking period on the basis of an integration of the difference between said approximations during said smoking period; and —means of estimating the said quantity of substrate vaporized by the heating element at least on the basis of said intensity.

Claims9

Dependent claims

A method for estimating the quantity of substrate vaporized by a heating element in an electronic cigarette over a period of smoking, characterized in that it includes:

a step for determining an approximation of a characteristic of a voltage across the terminals of the heating element over this period of smoking, said approximation being measured at the terminals of a circuit connected to the heating element, no component of which exhibits intrinsic characteristics interfered with by the inhalations;
a step for estimating an approximation of said characteristic of the voltage across the terminals of the heating element in the absence of inhalation over said period of smoking;
a step for calculating an intensity of inhalations over said period of smoking from an integration of the difference between said approximations over said period of smoking;
and
a step for estimating said quantity of substrate vaporized by the heating element at least from said intensity,
wherein the characteristic of said voltage is a voltage at a given instant or a variation of a voltage at a given instant.

3 more elements

An electronic cigarette including a heating element suitable for vaporizing a substrate over a period of smoking, characterized in that it includes:

means for determining an approximation of a characteristic of a voltage across the terminals of the heating element over this period of smoking, said approximation being measured at the terminals of a circuit connected to the heating element, no component of which exhibits intrinsic characteristics interfered with by the inhalations;
means for estimating an approximation of said characteristic of the voltage across the terminals of the heating element in the absence of inhalation over said period of smoking;
means for calculating an intensity of inhalations over said period of smoking from an integration of the difference between said approximations over said period of smoking;
and
means for estimating said quantity of substrate vaporized by the heating element at least from said intensity,
wherein the characteristic of said voltage is a voltage at a given instant or a variation of a voltage at a given instant.

3 more elements

Dependencies are inferred from the claim text.

Electronic cigarette

Life of this patent

Electronic cigarette

Life of this patent

Abstract

Claims9