US 11,725,998 B2
Method and corresponding circuit for detecting an opening or closing event
Saverio Grutta, Adrano (IT); and Enrico Rosario Alessi, Catania (IT)
Assigned to STMicroelectronics S.r.l., Agrate Brianza (IT)
Filed by STMicroelectronics S.r.l., Agrate Brianza (IT)
Filed on Feb. 15, 2019, as Appl. No. 16/277,415.
Claims priority of application No. 102018000003003 (IT), filed on Feb. 23, 2018.
Prior Publication US 2019/0265121 A1, Aug. 29, 2019
Int. Cl. G01L 23/32 (2006.01); G08B 13/08 (2006.01); G08B 13/20 (2006.01); H04M 1/72454 (2021.01); G08B 29/18 (2006.01); G08B 13/16 (2006.01); H04M 1/72421 (2021.01)
CPC G01L 23/32 (2013.01) [G08B 13/08 (2013.01); H04M 1/72454 (2021.01); G08B 13/1672 (2013.01); G08B 13/20 (2013.01); G08B 29/183 (2013.01); G08B 29/188 (2013.01); H04M 1/72421 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
collecting air pressure signals using a pressure sensor, the air pressure signals indicative of a change in pressure between an interior and an exterior of a building;
collecting sound signals using a sound sensor, the sound signals indicative of an audible event occurring in an area in a vicinity of a building opening;
sensing pressure peaks occurring in the air pressure signals;
sensing sound pulses occurring in the sound signals; and
detecting a joint occurrence of a pressure peak in the air pressure signals and a sound pulse in the sound signals, the joint occurrence being indicative of an opening/closing event of the building opening.