US 11,925,215 B2
Aerosol generating device and method of controlling the same
Hyung Jin Jung, Seoul (KR); and Jin Soo Seong, Seoul (KR)
Assigned to KT&G CORPORATION, Daejeon (KR)
Filed by KT&G CORPORATION, Daejeon (KR)
Filed on Nov. 3, 2022, as Appl. No. 17/979,912.
Application 17/979,912 is a continuation of application No. 16/959,202, granted, now 11,666,102, previously published as PCT/KR2019/013918, filed on Oct. 23, 2019.
Claims priority of application No. 10-2018-0138303 (KR), filed on Nov. 12, 2018.
Prior Publication US 2023/0052593 A1, Feb. 16, 2023
Int. Cl. A24F 13/00 (2006.01); A24F 40/10 (2020.01); A24F 40/51 (2020.01); A24F 40/53 (2020.01); A24F 40/57 (2020.01); H05B 1/02 (2006.01)
CPC A24F 40/57 (2020.01) [A24F 40/10 (2020.01); A24F 40/51 (2020.01); A24F 40/53 (2020.01); H05B 1/02 (2013.01); H05B 1/0297 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An aerosol generating device comprising:
a heater configured to heat an aerosol generating material in a cigarette;
a puff sensor configured to detect a pressure change in the aerosol generating device; and
a controller configured to:
determine states of a plurality of sections constituting a puff pattern representing a pressure change over time, based on a signal received from the puff sensor, and
control an operation of the heater, based on the states of the plurality of sections,
wherein the plurality of sections include a first section, a second section following the first section, a third section following the second section, a fourth section following the third section, and a fifth section following the fourth section, and
wherein the controller is further configured to count a number of puffs based on the first section being determined as a pressure maintaining state, the second section being determined as a pressure falling state, the third section being determined as a pressure maintaining state, the fourth section being determined as a pressure rising state, and the fifth section being determined as a pressure maintaining state.